Division of Vascular and Endovascular Surgery, Mayo Clinic, 200 First St SW, Rochester, MN 55905
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The Society for Vascular Surgery (SVS) and the American Venous Forum (AVF) have developed clinical practice guidelines for the care of patients with varicose veins of the lower limbs and pelvis. The document also includes recommendations on the management of superficial and perforating vein incompetence in patients with associated, more advanced chronic venous diseases (CVDs), including edema, skin changes, or venous ulcers. Recommendations of the Venous Guideline Committee are based on the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) system as strong (GRADE 1) if the benefits clearly outweigh the risks, burden, and costs. The suggestions are weak (GRADE 2) if the benefits are closely balanced with risks and burden. The level of available evidence to support the evaluation or treatment can be of high (A), medium (B), or low or very low (C) quality. The key recommendations of these guidelines are: We recommend that in patients with varicose veins or more severe CVD, a complete history and detailed physical examination are complemented by duplex ultrasound scanning of the deep and superficial veins (GRADE 1A). We recommend that the CEAP classification is used for patients with CVD (GRADE 1A) and that the revised Venous Clinical Severity Score is used to assess treatment outcome (GRADE 1B). We suggest compression therapy for patients with symptomatic varicose veins (GRADE 2C) but recommend against compression therapy as the primary treatment if the patient is a candidate for saphenous vein ablation (GRADE 1B). We recommend compression therapy as the primary treatment to aid healing of venous ulceration (GRADE 1B). To decrease the recurrence of venous ulcers, we recommend ablation of the incompetent superficial veins in addition to compression therapy (GRADE 1A). For treatment of the incompetent great saphenous vein (GSV), we recommend endovenous thermal ablation (radiofrequency or laser) rather than high ligation and inversion stripping of the saphenous vein to the level of the knee (GRADE 1B). We recommend phlebectomy or sclerotherapy to treat varicose tributaries (GRADE 1B) and suggest foam sclerotherapy as an option for the treatment of the incompetent saphenous vein (GRADE 2C). We recommend against selective treatment of perforating vein incompetence in patients with simple varicose veins (CEAP class C(2); GRADE 1B), but we suggest treatment of pathologic perforating veins (outward flow duration ≥500 ms, vein diameter ≥3.5 mm) located underneath healed or active ulcers (CEAP class C(5)-C(6); GRADE 2B). We suggest treatment of pelvic congestion syndrome and pelvic varices with coil embolization, plugs, or transcatheter sclerotherapy, used alone or together (GRADE 2B).
In the United States, an estimated 23% of adults have varicose veins, and 6% have more advanced chronic venous disease (CVD), including skin changes and healed or active venous ulcers.1 Varicose veins have long been considered a cosmetic problem that only affected emotional well-being but were not the source of disability. Varicosities, however, are frequently the cause of discomfort, pain, loss of working days, disability, and deterioration of health-related quality of life (QOL).1, 2, 3 Severe CVD may also lead to loss of limb or loss of life.4
Evaluation of varicose veins has greatly progressed in the past 2 decades with the widespread availability of duplex ultrasonography.5 The treatment of varicose veins has also undergone dramatic changes with the introduction of percutaneous endovenous ablation techniques, including endovenous laser therapy (EVLA),6, 7 radiofrequency ablation (RFA),8 and liquid or foam sclerotherapy.9, 10 Open surgical treatment with stripping of the varicose veins performed under general anesthesia, with the associated pain, potential for wound complications, and loss of working days, has been largely replaced by percutaneous office-based procedures that can be performed under local or tumescent anesthesia with similar early and midterm results but with less discomfort to the patient, improved early QOL, and earlier return to work.11, 12, 13
The purpose of this document is to report recently formulated current recommendations for the evaluation and treatment of patients with varicose veins of the lower limbs and pelvis. These Guidelines also include recommendations for management of superficial and perforating vein incompetence in patients with associated, more advanced CVDs, such as venous edema, skin changes, or ulcerations. To accomplish this task, a joint Venous Guideline Committee of the Society for Vascular Surgery (SVS) and the American Venous Forum (AVF) was established.
Under no circumstance should these Guidelines be construed in practice or legal terms as defining the “standard of care,” which is solely determined by the condition of the individual patient, treatment setting, and other factors. Individual factors in a given patient, such as symptom variance or combinations, comorbidities, work, and socioeconomic factors may dictate a different approach than that described in the Guidelines. Because technology and disease knowledge is rapidly expanding, new approaches may supersede these recommendations. As important new information on management of varicose veins and related CVD becomes available, these recommendations will be revised without delay.
Methodology of guidelines
Evidence-based medicine is the conscientious, explicit, and judicious use of the current best evidence in making decisions about the care of individual patients.14 Guidelines for the care of patients with varicose veins, as recommended in this report, are based on scientific evidence. The need for adopting evidence-based guidelines and reporting standards for venous diseases has long been recognized by international experts15 and by leaders of the SVS16 and AVF.17, 18, 19, 20 To define current guidelines, members of the Venous Guideline Committee reviewed the relevant literature, including previously published consensus documents and guidelines,21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 meta-analyses,6, 7, 8, 9, 10, 11, 12, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42 the AVF reports on the Venous Summit at the 2006 and 2009 Pacific Vascular Symposiums13, 43, 44, 45, 46 and considered the recommendations published in the third edition of the Handbook of Venous Disorders, Guidelines of the American Venous Forum.47
The guidelines in this publication are based on the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) system, as it was described by Guyatt et al (Table I).48 For each guideline, the letter A, B, or C marks the level of current evidence. The grade of recommendation of a guideline can be strong (1) or weak (2), depending on the risk and burden of a particular diagnostic test or a therapeutic procedure to the patient vs the expected benefit. The words “we recommend” are used for GRADE 1—strong recommendations—if the benefits clearly outweigh risks and burdens, or vice versa; the words “we suggest” are used for GRADE 2—weak recommendations—when the benefits are closely balanced with risks and burdens.
|Grade||Description of recommendation||Benefit vs risk and burdens||Methodologic quality of supporting evidence||Implications|
|1A||Strong recommendation, high-quality evidence||Benefits clearly outweigh risk and burdens, or vice versa||RCTs without important limitations or overwhelming evidence from observational studies||Strong recommendation, can apply to most patients in most circumstances without reservation|
|1B||Strong recommendation, moderate quality evidence||Benefits clearly outweigh risk and burdens, or vice versa||RCTs with important limitations (inconsistent results, methodologic flaws, indirect, or imprecise) or exceptionally strong evidence from observational studies||Strong recommendation, can apply to most patients in most circumstances without reservation|
|1C||Strong recommendation, low-quality or very low-quality evidence||Benefits clearly outweigh risk and burdens, or vice versa||Observational studies or case series||Strong recommendation but may change when higher quality evidence becomes available|
|2A||Weak recommendation, high-quality evidence||Benefits closely balanced with risks and burden||RCTs without important limitations or overwhelming evidence from observational studies||Weak recommendation, best action may differ depending on circumstances or patients' or societal values|
|2B||Weak recommendation, moderate-quality evidence||Benefits closely balanced with risks and burden||RCTs with important limitations (inconsistent results, methodologic flaws, indirect, or imprecise) or exceptionally strong evidence from observational studies||Weak recommendation, best action may differ depending on circumstances or patients' or societal values|
|2C||Weak recommendation, low-quality or very low-quality evidence||Uncertainty in the estimates of benefits, risks, and burden; benefits, risk, and burden may be closely balanced||Observational studies or case series||Very weak recommendations; other alternatives may be equally reasonable|
RCT, Randomized controlled trial.
In this document, the updated terminology for superficial, perforating, and deep veins of the leg and pelvis are used.49, 50 Definitions of varicose and spider veins as well as other manifestations of CVD follow recommendations of the CEAP classification and the recent update on venous terminology of the International Committee of the AVF.51, 52
Varicose veins of the lower limbs are dilated subcutaneous veins that are ≥3 mm in diameter measured in the upright position.53 Synonyms include varix, varices, and varicosities. Varicosity can involve the main axial superficial veins—the great saphenous vein (GSV) or the small saphenous vein (SSV)—or any other superficial vein tributaries of the lower limbs.
Most varicose veins are due to primary venous disease. The most frequent cause is likely an intrinsic morphologic or biochemical abnormality in the vein wall, although the etiology can also be multifactorial. Labropoulos et al54 proposed that the origin of venous reflux in patients with primary varicose veins can be local or multifocal structural weakness of the vein wall and that this can occur together or independently of proximal saphenous vein valvular incompetence. Varicosities can also develop as a result of secondary causes, such as previous deep vein thrombosis (DVT), deep venous obstruction, superficial thrombophlebitis, or arteriovenous fistula. Varicose veins may also be congenital and present as a venous malformation.
Varicosities are manifestations of CVD.51, 52 CVD includes various medical conditions of long duration, all involving morphologic and functional abnormalities of the venous system manifested by symptoms or signs (or both), indicating the need for investigation and care. The term chronic venous disorder is reserved for the full spectrum of venous abnormalities and includes dilated intradermal veins and venules between 1 and 3 mm in diameter (spider veins, reticular veins, telangiectasia; CEAP class C1).
Varicose veins can progress to a more advanced form of chronic venous dysfunction such as chronic venous insufficiency (CVI).55, 56 In CVI, increased ambulatory venous hypertension initiates a series of changes in the subcutaneous tissue and the skin: activation of the endothelial cells, extravasation of macromolecules and red blood cells, diapedesis of leukocytes, tissue edema, and chronic inflammatory changes most frequently noted at and above the ankles.41, 53 Limb swelling, pigmentation, lipodermatosclerosis, eczema, or venous ulcerations can develop in these patients.
The scope of the problem
In the adult Western population, the prevalence of varicose veins is >20% (range, 21.8%-29.4%), and about 5% (range, 3.6%-8.6%) have venous edema, skin changes or venous ulcerations. Active venous ulcers are present in up to 0.5%, and between 0.6% and 1.4% have healed ulcers.57 On the basis of estimates of the San Diego epidemiologic study, more than 11 million men and 22 million women between the ages of 40 and 80 years in the United States have varicose veins, and >2 million adults have advanced CVD, with skin changes or ulcers.1 The incidence of postthrombotic venous ulcers has not changed in the past 2 decades for women, and it recently increased in men.58 In the United States each year, at least 20,556 patients receive a new diagnosis of venous ulcers.3
The Bonn Vein Study,59 which enrolled 3072 randomly selected participants (1722 women and 1350 men), aged from 18 to 79 years, found symptoms of CVD in 49.1% of men and in 62.1% of women. Also reported were varicose veins without edema or skin changes in 14.3% (12.4% men, 15.8% women), edema in 13.4% (11.6% men, 14.9% women), skin changes in 2.9% (3.1% men, 2.7% women), and healed or active ulceration in 0.6% or 0.1%, respectively. A French cross-sectional survey found varicose veins in 23.7% of men and 46.3% of women.60
The National Venous Screening Program, under the auspices of the AVF, screened 2234 Americans for venous disease.61 The participants' mean age was 60 years, 77% were women, and 80% were white. The CEAP clinical classification of C0 to C6 was 29%, 29%, 23%, 10%, 9%, 1.5%, and 0.5%, respectively. Reflux or obstruction was noted in 37% and 5% of participants, respectively.
Progression of primary varicosity to severe CVI and venous ulcer is not rare: in the North American subfascial endoscopic perforator surgery (SEPS) registry, more patients with advanced CVI had primary venous disease than post-thrombotic syndrome (70% vs 30%).62 Bauer63 had already observed in 1948 that 58% of his patients with advanced CVD, studied with phlebography, never had a previous DVT.
Varicose veins and venous ulcers can be a great financial burden to patients and to society. Varicose veins and associated complications may lead to chronic pain, disability, decreased quality of life (QOL), loss of working days, and early retirement. In the United States, the direct medical cost of CVD has been estimated to be between $150 million and $1 billion annually.3, 4 In the United Kingdom, 2% of the national health care budget per year (US $1 billion) is spent on the management of leg ulcers.1
Venous ulcer is an under-recognized and undertreated disease. A recently published supplement of the Journal of Vascular Surgery details the noble goal of the Pacific Vascular Symposium 6 (PVS6) to lead a call to action to formulate a doable and achievable plan to reduce the incidence of venous ulcers in the United States by 50% in 10 years.64
During the past decade, new venous terminology has been developed and adopted by vascular societies around the world.47, 49, 61 The success of assigning uniform names to common veins was accompanied by new information on anatomy obtained with duplex ultrasonography, three-dimensional computed tomography (CT), and magnetic resonance (MR) imaging; all these resulted in better understanding of the anatomy of veins and the pathology of CVD.33, 62
Superficial veins of the lower limbs are those located between the deep fascia, covering the muscles of the limb, and the skin. The main superficial veins are the GSV and the SSV. All previous names used to describe these vessels (greater, long, lesser) should be abandoned. The GSV originates from the medial superficial veins of the dorsum of the foot and ascends in front of the medial malleolus along the medial border of the tibia, next to the saphenous nerve (Fig 1). There are posterior and anterior accessory saphenous veins in the calf and the thigh. The saphenofemoral junction (SFJ) is the confluence of superficial inguinal veins, comprising the GSV and the superficial circumflex iliac, superficial epigastric, and external pudendal veins. The GSV in the thigh lies in the saphenous subcompartment of the superficial compartment, between the saphenous fascia and the deep fascia.
The SSV is the most important posterior superficial vein of the leg (Fig 2). It originates from the lateral side of the foot and drains blood into the popliteal vein, joining it usually just proximal to the knee crease. The intersaphenous vein (vein of Giacomini), which runs in the posterior thigh, connects the SSV with the GSV.65
Deep veins accompany the main arteries of the limb and pelvis. The deep veins of the calf (anterior, posterior tibial, and peroneal veins) are paired structures, and the popliteal and femoral veins may also be paired. The gastrocnemius and soleal veins are important deep tributaries. The old term superficial femoral vein has been replaced by the new term femoral vein.52 The femoral vein connects the popliteal to the common femoral vein.
The pelvic veins include the external, internal, and common iliac veins, which drain into the inferior vena cava (IVC). Large gonadal veins drain into the IVC on the right and the left renal vein on the left.
Perforating veins connect the superficial to the deep venous system (Fig 1). They pass through the deep fascia that separates the superficial compartment from the deep. Communicating veins connect veins within the same system. The most important leg perforating veins are the medial calf perforators.66 The posterior tibial perforating veins (Cockett perforators in the old nomenclature) connect the posterior accessory GSV of the calf (the posterior arch vein in the old nomenclature) with the posterior tibial veins and form the lower, middle, and upper groups. They are located just behind the medial malleolus (lower), at 7 to 9 cm (middle) and at 10 to 12 cm (upper) from the lower edge of the malleolus. The distance between these perforators and the medial edge of the tibia is 2 to 4 cm.66 (Fig 1). Paratibial perforators connect the main GSV trunk with the posterior tibial veins. In the distal thigh, perforators of the femoral canal usually connect directly the GSV to the femoral vein.
Bicuspid venous valves are important structures assisting unidirectional flow in the normal venous system. The GSV usually has at least 6 valves (range, 4-25), with a constant valve present within 2 to 3 cm of the SFJ in 85% of cases,67 and the SSV has a median of 7 to 10 valves (range, 4-13).68 There are valves in the deep veins of the lower limb, but the common femoral or external iliac vein has only one valve in about 63% of cases.68 In 37%, there is no valve in the common femoral or external iliac veins. The internal iliac vein has a valve in 10%; its tributaries have valves in 9%.69
Patients with varicose veins may present with no symptoms at all; the varices are then of cosmetic concern only, with an underlying psychologic impact. Psychologic concerns related to the cosmetic appearance of varicose veins will, however, reduce a patient's QOL in many cases.
Symptoms related to varicose veins or more advanced CVD include tingling, aching, burning, pain, muscle cramps, swelling, sensations of throbbing or heaviness, itching skin, restless legs, leg tiredness, and fatigue.70 Although not pathognomonic, these symptoms suggest CVD, particularly if they are exacerbated by heat or dependency noted during the course of the day and relieved by resting or elevating the legs or by wearing elastic stockings or bandages.51 Pain during and after exercise that is relieved with rest and leg elevation (venous claudication) can also be caused by venous outflow obstruction caused by previous DVT or by narrowing or obstruction of the common iliac veins (May-Thurner syndrome).69, 70, 71 Diffuse pain is more frequently associated with axial venous reflux, whereas poor venous circulation in bulging varicose veins usually causes local pain.
A thorough medical history is essential in the patient's evaluation and may establish the diagnosis of primary, secondary, or congenital varicosities. Questions to patients who present with varicose veins should address previous DVT or thrombophlebitis, established thrombophilia, medication history (particularly birth control pills), smoking, pregnancies, and a family history of varicosity or thrombotic disorders. Premenopausal women with varicose veins should also be questioned for symptoms of pelvic congestion syndrome (pelvic pain, aching, or heaviness; dyspareunia). Advanced age is the most important risk factor for varicose veins and for CVI. A positive family history, female sex, and multiparity are also risk factors for varicose veins, and a positive family history and obesity are risk factors for CVI.57
Clinical evaluation should focus on signs of venous disease, and examination in the standing patient in a warm room, with good light, should establish the size, location, and distribution of varicose veins. Inspection and palpation are essential parts of the examination, and auscultation (bruit) is particularly helpful in those with vascular malformation and arteriovenous fistula.71 Varicose dilations or venous aneurysms, palpable cord in the vein, tenderness, a thrill, bruit, or pulsatility should be recorded. In addition, the presence of spider veins or telangiectasia, limb swelling that is usually partially pitting or nonpitting, induration, pigmentation, lipodermatosclerosis, atrophie blanche, eczema, dermatitis, skin discoloration, increased skin temperature, and healed or active ulcers should be documented.
Ankle mobility should also be examined, because patients with advanced venous disease frequently have decreased mobility in the ankle joints. Sensory and motor functions of the limb and foot are assessed to help differentiate from diabetic neuropathy or any underlying neurologic problem. An abdominal mass or lymphadenopathy may be a clue to venous compression and outflow obstruction.
Corona phlebectatica (ankle flare or malleolar flare) is a fan-shaped pattern of small intradermal veins located around the ankle or the dorsum of the foot. This is considered an early sign of advanced venous disease. The pattern of the varicose veins should be established, because perineal, vulvar, or groin varicosity can be a sign of iliac vein obstruction or internal iliac vein or gonadal vein incompetence causing pelvic congestion syndrome. Scrotal varicosity may be a sign of gonadal vein incompetence, left renal vein compression between the superior mesenteric artery and the aorta (nutcracker syndrome), or occasionally, even IVC lesions or renal carcinoma. Varicose veins of the upper thigh can be caused by inferior gluteal vein reflux.72, 73
Classic tourniquet tests for saphenous or perforator incompetence or deep venous occlusion (Trendelenburg test, Ochsner-Mahorner test, Perthes test)71 are rarely used today; they are mostly of historic interest and should be used in rare instances, when duplex scanning or Doppler studies are not available. Distal palpation and proximal percussion of the saphenous vein, however, are useful tests to suggest valvular incompetence.
Skin lesions, such as capillary malformations, tumors, onychomycosis, or excoriations, should be noted and a complete pulse examination performed to exclude underlying peripheral arterial disease. An aneurysmal saphenous vein can be misdiagnosed as a femoral hernia or vice versa. The presence of a longer limb, lateral varicosity noted soon after birth, and associated capillary malformations are tip-offs for congenital venous malformation (Klippel-Trénaunay syndrome),74, 75 whereas edema of the dorsum of the foot, squaring of the toes, thick skin, and nonpitting edema are signs of chronic lymphedema. The physical examination can be complemented by a handheld Doppler examination, although the latter does not replace evaluation of the venous circulation with color duplex scanning.
The Guideline Committee recommends using the basic CEAP classification76, 77 (see Classification of chronic venous disorders later in the Guidelines) to document the clinical class, etiology, anatomy, and pathophysiology (CEAP) of CVD (Table II, Table III). We also recommend use of the revised Venous Clinical Severity Score (VCSS)78 to grade the severity of CVD (see Outcome assessment; Table IV).
|1. Clinical classification|
|C0||No visible or palpable signs of venous disease|
|C1||Telangiectases or reticular veins|
|C4a||Pigmentation and/or eczema|
|C4b||Lipodermatosclerosis and/or atrophie blanche|
|C5||Healed venous ulcer|
|C6||Active venous ulcer|
|CS||Symptoms, including ache, pain, tightness, skin irritation, heaviness, muscle cramps, as well as other complaints attributable to venous dysfunction|
|2. Etiologic classification|
|En||No venous etiology identified|
|3. Anatomic classification|
|An||No venous location identified|
|4. Pathophysiologic classification|
|Pr,o||Reflux and obstruction|
|Pn||No venous pathophysiology identifiable|
|2.||GSV above knee|
|3.||GSV below knee|
|4.||Short saphenous vein|
|6.||Inferior vena cava|
|7.||Common iliac vein|
|8.||Internal iliac vein|
|9.||External iliac vein|
|10.||Pelvic: gonadal, broad ligament veins, other|
|11.||Common femoral vein|
|12.||Deep femoral vein|
|15.||Crural veins: anterior tibial, posterior tibial, peroneal veins (all paired)|
|16.||Muscular veins: gastrocnemius, soleal, other|
|17.||Thigh perforator veins|
|18.||Calf perforator veins|
|None: 0||Mild: 1||Moderate: 2||Severe: 3|
|Pain or other discomfort (ie, aching, heaviness, fatigue, soreness, burning); presumes venous origin||None||Occasional pain or other discomfort (ie, not restricting regular daily activity)||Daily pain or other discomfort (ie, interfering with but not preventing regular daily activities)||Daily pain or discomfort (ie, limits most regular daily activities)|
|“Varicose” veins must be ≥3 mm in diameter to qualify in the standing position||None||Few: scattered (ie, isolated branch varicosities or clusters); also includes corona phlebectatica (ankle flare)||Confined to calf or thigh||Involves calf and thigh|
|Presumes venous origin||None||Limited to foot and ankle area||Extends above ankle but below knee||Extends to knee and above|
|Presumes venous origin; does not include focal pigmentation over varicose veins or pigmentation due to other chronic diseases (ie, vasculitis purpura)||None or focal||Limited to perimalleolar area||Diffuse over lower third of calf||Wider distribution above lower third of calf|
|More than just recent pigmentation (ie, erythema, cellulitis, venous eczema, dermatitis)||None||Limited to perimalleolar area||Diffuse over lower third of calf||Wider distribution above lower third of calf|
|Presumes venous origin of secondary skin and subcutaneous changes (ie, chronic edema with fibrosis, hypodermitis); includes white atrophy and lipodermatosclerosis||None||Limited to perimalleolar area||Diffuse over lower third of calf||Wider distribution above lower third of calf|
|No. of active ulcers||0||1||2||≥3|
|Active ulcer duration (longest active)||NA||<3 mo||>3 mo but <1 y||Not healed for >1 y|
|Active ulcer size (largest active)||NA||Diameter <2 cm||Diameter 2-6 cm||Diameter >6 cm|
|Use of compression therapy||None: 0||Occasional: 1||Frequent: 2||Always: 3|
|Not used||Intermittent use of stockings||Wears stockings most days||Full compliance: stockings|
The aim of the clinical evaluation is not only to determine the presenting signs and symptoms and the type of venous disease (primary, secondary, congenital) but also to exclude other etiologies, including peripheral arterial disease, rheumatoid disease, infection, tumor, or allergies. The physician should also establish the degree of disability caused by the venous disease and its impact on the patient's QOL.
Duplex scanning is recommended as the first diagnostic test for all patients with suspected CVD.5, 79 The test is safe, noninvasive, cost-effective, and reliable. It has much better diagnostic accuracy in the assessment of venous insufficiency than continuous-wave Doppler ultrasonography.80 B-mode imaging permits accurate placement of the pulsed Doppler sample volume, and the addition of color makes it easier to establish obstruction, turbulence, and the direction of venous and arterial flow.44 Duplex scanning is excellent for the evaluation of infrainguinal venous obstruction and valvular incompetence.81 It also differentiates between acute venous thrombosis and chronic venous changes.82, 83
Technique of the examination
The technique of venous duplex scanning has been described in detail previously by several authors.80, 83, 84, 85, 86, 87, 88 The pulsed-wave Doppler of 4 to 7-MHz linear array tranducers are used most frequently for the deeper veins, with the higher-frequency probes used more to assess the superficial veins. Evaluation of reflux in the deep and superficial veins with duplex scanning should be performed with the patient upright, with the leg rotated outward, heel on the ground, and weight taken on the opposite limb.5 The supine position gives both false-positive and false-negative results of reflux.84
The examination is started below the inguinal ligament, and the veins are examined in 3- to 5-cm intervals. For a complete examination, all deep veins of the leg are examined, including the common femoral, femoral, deep femoral, popliteal, peroneal, soleal, gastrocnemial, anterior, and posterior tibial veins. The superficial veins are then evaluated, including the GSV, the SSV, the accessory saphenous veins, and the perforating veins.
The four components that should be included in a complete duplex scanning examination for CVD are (1) visibility, (2) compressibility, (3) venous flow, including measurement of the duration of reflux, and (4) augmentation. Asymmetry in flow velocity, lack of respiratory variations in venous flow, and waveform patterns at rest and during flow augmentation in the common femoral veins indicate proximal obstruction. Reflux can be elicited in two ways: increased intra-abdominal pressure using a Valsalva maneuver for the common femoral vein or the SFJ, or by manual compression and release of the limb distal to the point of examination. The first is more appropriate for evaluation of reflux in the common femoral vein and at the SFJ, whereas compression and release is the preferred technique more distally on the limb.84 The advantage of a distal cuff deflation was emphasized by van Bemmelen et al.85
The cutoff value for abnormally reversed venous flow (reflux) in the saphenous, tibial, and deep femoral veins has been 500 ms.81 International consensus documents previously recommended 0.5 seconds as a cutoff value for all veins to use for lower limb venous incompetence.5, 22, 86 This value is, however, longer, 1 second, for the femoral and popliteal veins.81 For the perforating veins, cutoff values of both 350 ms and 500 ms have been suggested.5, 81 The Committee recommends 500 ms as the cutoff value for saphenous, tibial, deep femoral, and perforating vein incompetence, and 1 second for femoral and popliteal vein incompetence.
Perforating veins have been evaluated in patients with advanced disease, usually in those with healed or active venous ulcers (CEAP class C5-C6) or in those with recurrent varicose veins after previous interventions. The diameter of clinically relevant “pathologic” perforators (eg, beneath healed or open venous ulcer) may predict valve incompetence. In a study by Labrapoulos et al,87 a perforator vein diameter >3.9 mm had a high specificity (96%) but a low sensitivity (73%) to predict incompetence, given that almost one-third of the incompetent perforators had a diameter of <3.9 mm.87, 88 Sandri et al,89 however, found that a perforator diameter of ≥3.5 mm was associated with reflux in >90% of cases. The SVS/AVF Guideline Committee definition of “pathologic” perforating veins includes those with outward flow of ≥500 ms, with a diameter of ≥3.5 mm, located beneath a healed or open venous ulcer (CEAP class C5-C6).5, 81, 88, 89
Duplex findings in CVD
A duplex evaluation of patients with CVD demonstrated that superficial vein reflux was present in 90% and that 70% to 80% have reflux in the GSV.90 Patients with venous ulcers usually have multilevel disease affecting the superficial, deep, and perforating veins. Duplex evaluations have also revealed that 74% to 93% of all patients with venous ulcers have superficial vein incompetence, with superficial venous reflux being the only abnormality in 17% to 54% of the limbs. Of 239 patients with venous ulcers evaluated with duplex scanning in three different studies, 144 (60.3%) had incompetent perforating veins, and 141 (59%) had deep vein incompetence or obstruction.91, 92, 93
Plethysmography (air or strain-gauge) is used for the noninvasive evaluation of calf muscle pump function, global venous reflux, and venous outflow obstruction.86, 94, 95, 96 Strain-gauge plethysmography is usually performed with a modified protocol of Struckmann, validated previously by comparison with simultaneously recorded ambulatory venous pressure measurements.97, 98, 99, 100 Strain-gauge or air plethysmography consists of exercise venous plethysmography, measurement of passive refill and drainage, and outflow plethysmography. Plethysmography quantifies venous reflux and obstruction and has been used to monitor venous functional changes and assess physiologic outcome of surgical treatments.95 For more details of these examinations, the reader is referred to original articles94, 96, 97 and a recent relevant book chapter.100
The use of plethysmography is less frequently indicated in patients with CEAP C2 disease (simple varicose veins), but these studies provide information on venous function in patients with CVI, and they are complementary examination to duplex scanning. Examples for use in patients may include those with suspected outflow obstruction but normal duplex findings or those suspected of having venous disease due to calf muscle pump dysfunction, but no reflux or obstruction was noted on duplex scanning. Air plethysmography remains one of the few noninvasive techniques that can quantify reflux reliably98, 99 although other parameters have been reported to be variably useful. The Guideline Committee encourages using air plethysmography as “best practice” in the evaluation of patients with advance CVD if duplex scanning does not provide definitive diagnosis on pathophysiology (CEAP C3-C6).
Ascending or descending contrast venography for varicosities or other forms of CVD is performed selectively in patients with deep venous obstruction, in patients with post-thrombotic syndrome, and if endovenous or open surgical treatment is planned. It can be used with direct venous pressure measurements to evaluate patients with varicose veins and associated iliac vein obstruction (May-Thurner syndrome). Contrast venography is routinely used in CVD to perform endovenous procedures, such as angioplasty or venous stenting or open venous reconstructions.
CT and MR venography
Patients with simple varicose veins rarely require imaging studies more sophisticated than duplex ultrasonography. The techniques of CT and MR imaging have progressed tremendously in the past decade, and they provide excellent three-dimensional imaging of the venous system. MR and CT are both suitable to identify pelvic venous obstruction or iliac vein stenosis in patients with lower limb varicosity when a proximal obstruction or iliac vein compression (May-Thurner syndrome) is suspected.101 They are suitable to establish left renal vein compression (nutcracker syndrome),102 gonadal vein incompetence, and pelvic venous congestion syndrome. MR imaging with gadolinium is especially useful in evaluating patients with vascular malformations, including those with congenital varicose veins.
|Guideline No.||1. Clinical examination||GRADE of recommendation||Level of evidence|
|1. Strong||A. High quality|
|2. Weak||B. Moderate quality|
|C. Low or very low quality|
|1.1||For clinical examination of the lower limbs for chronic venous disease, we recommend inspection (telangiectasia, varicosity, edema, skin discoloration, corona phlebectatica, lipodermatosclerosis, ulcer), palpation (cord, varicosity, tenderness, induration, reflux, pulses, thrill, groin or abdominal masses) auscultation (bruit), and examination of ankle mobility. Patients should be asked for symptoms of chronic venous disease, which may include tingling, aching, burning, pain, muscle cramps, swelling, sensations of throbbing or heaviness, itching skin, restless legs, leg tiredness, and fatigue.||1||A|
|Guideline No.||2. Duplex scanning||GRADE of recommendation||Level of evidence|
|1. Strong||A. High quality|
|2. Weak||B. Moderate quality|
|C. Low or very low quality|
|2.1||We recommend that in patients with chronic venous disease, a complete history and detailed physical examination are complemented by duplex scanning of the deep and superficial veins. The test is safe, noninvasive, cost-effective, and reliable.||1||A|
|2.2||We recommend that the four components of a complete duplex scanning examination for chronic venous disease should be visualization, compressibility, venous flow, including measurement of duration of reflux, and augmentation.||1||A|
|2.3||We recommend that reflux to confirm valvular incompetence in the upright position of the patients be elicited in one of two ways: either with increased intra-abdominal pressure using a Valsalva maneuver to assess the common femoral vein and the saphenofemoral junction, or for the more distal veins, use of manual or cuff compression and release of the limb distal to the point of examination.||1||A|
|2.4||We recommend a cutoff value of 1 second for abnormally reversed flow (reflux) in the femoral and popliteal veins and of 500 ms for the great saphenous vein, the small saphenous vein, the tibial, deep femoral, and the perforating veins.||1||B|
|2.5||We recommend that in patients with chronic venous insufficiency, duplex scanning of the perforating veins is performed selectively. We recommend that the definition of “pathologic” perforating veins includes those with an outward flow of duration of ≥500 ms, with a diameter of ≥3.5 mm and a location beneath healed or open venous ulcers (CEAP class C5-C6).||1||B|
Intravascular ultrasonography (IVUS) has been used successfully to evaluate iliac vein compression or obstruction and to monitor patients after venous stenting.101 For patients with varicose veins, IVUS should be used selectively in those with suspected or confirmed iliac vein obstruction. IVUS is important in assessing the morphology of the vessel wall, identifying lesions such as trabeculations, frozen valves, mural thickness, and external compression that are not seen with conventional contrast venography, and it provides measurements in assessing the degree of stenosis. In addition, IVUS confirms the position of the stent in the venous segment and the resolution of the stenosis.101
Patients with varicose veins are usually operated on under local or tumescent anesthesia, and specific laboratory tests are not routinely performed. In those with recurrent DVT, thrombosis at a young age, or thrombosis in an unusual site, we recommend screening for thrombophilia. Laboratory examination is also needed in patients with long-standing recalcitrant venous ulcers. One study found 2.1% of venous and arterial ulcers had a secondary etiology, including neoplasia, chronic inflammation, sickle cell disease, vasculitis, rheumatoid arthritis, pyoderma gangrenosum, and hydroxyurea.103 Patients who undergo general anesthesia for treatment of CVD may need a blood cell count or an electrolyte panel.
|Guideline No.||3. Plethysmography||GRADE of recommendation||Level of evidence|
|1. Strong||A. High quality|
|2. Weak||B. Moderate quality|
|C. Low or very low quality|
|3.1||We suggest that venous plethysmography be used selectively for the noninvasive evaluation of the venous system in patients with simple varicose veins (CEAP class C2).||2||C|
|3.2||We recommend that venous plethysmography be used for the noninvasive evaluation of the venous system in patients with advanced chronic venous disease if duplex scanning does not provide definitive information on pathophysiology (CEAP class C3-C6).||1||B|
|Guideline No.||4. Imaging studies||GRADE of recommendation||Level of evidence|
|1. Strong||A. High quality|
|2. Weak||B. Moderate quality|
|C. Low or very low quality|
|4.1||We recommend that in patients with varicose veins and more advanced chronic venous disease, computed tomography venography, magnetic resonance venography, ascending and descending contrast venography, and intravascular ultrasonography are used selectively for indications, including but not limited to post-thrombotic syndrome, thrombotic or nonthrombotic iliac vein obstruction (May-Thurner syndrome), pelvic congestion syndrome, nutcracker syndrome, vascular malformations, venous trauma, tumors, and planned open or endovascular venous interventions.||1||B|
Classification of CVD
The cornerstone for management of CVD is the proper diagnosis and accurate classification of the underlying venous problem, which create the base for correctly directed treatment. The clinical and laboratory evaluation of the patient with varicose veins or more advanced CVD should be completed by establishing the clinical class of the disease. The CEAP classification was developed by the AVF in 1994 and later revised in 2004.76, 77 The classification is based on clinical signs of venous disease (C), etiology (E), anatomy (A), and the underlying pathophysiology (P).
Clinical class includes the full spectrum of venous disorders, from no signs of visible venous disease (C0) to telangiectasia or reticular veins (C1), varicose veins (C2), edema (C3), skin changes, such as pigmentation or eczema (C4a) or lipodermatosclerosis or atrophie blanche (C4b), and healed (C5) or active (C6) ulcer. The presence or absence of symptoms is also recorded as S (symptomatic) or A (asymptomatic).
Etiology can be congenital (Ec), primary (Ep), or secondary (Es).
The anatomic classification separates superficial venous disease (As) from involvement of the perforators (Ap) or deep veins (Ad). Failure to identify an anatomic location is also coded (An).
Pathophysiology of the disease can be reflux (Pr), obstruction (Po), or both. Failure to identify venous pathophysiology is also noted (Pn). Table II includes the full CEAP classification, and Table III lists the venous segments that can be involved in the disease.
|Guideline No.||5. Laboratory evaluation||GRADE of recommendation||Level of evidence|
|1. Strong||A. High quality|
|2. Weak||B. Moderate quality|
|C. Low or very low quality|
|5.1||We recommend that in patients with chronic venous disease, evaluation for thrombophilia is needed selectively for those with recurrent deep vein thrombosis, thrombosis at a young age, or thrombosis in an unusual site. Laboratory examination is needed in patients with long-standing venous stasis ulcers (blood cell count and metabolic panel) and in selected patients who undergo general anesthesia for the treatment of chronic venous disease.||1||B|
|Guideline No.||6. Classification||GRADE of recommendation||Level of evidence|
|1. Strong||A. High quality|
|2. Weak||B. Moderate quality|
|C. Low or very low quality|
|6.1||We recommend that the CEAP classification be used for patients with varicose veins. The basic CEAP classification is used for clinical practice, and the full CEAP classification system is used for clinical research.||1||A|
|6.2||We recommend that primary venous disorders, including simple varicose veins, be differentiated from secondary venous insufficiency and from congenital venous disorders because the three conditions differ in pathophysiology and management.||1||B|
The basic CEAP classification is a simplified version, suitable and easy for office use, and does not have the details of the comprehensive CEAP classification, which functions more as a research tool. As discussed in more detail by Meissner et al,13 for a patient with primary, symptomatic varicose veins and full saphenous and perforator incompetence (anatomic segments 2, 3, and 18 in Table III) with a small healed venous ulcer and skin pigmentation, the comprehensive CEAP classification would be C2,4a,5,SEpAs,p,Pr2,3,18.
Using the basic CEAP, the same patient would be classified as C5,SEpAs,pPr. In the basic CEAP classification, only the highest score is used to denote the clinical class and only the main anatomic groups (s, p, and d) are noted.
The revised format of the classification77 includes two elements in addition to the C-E-A-P findings: the date of the examination and the level of the diagnostic evaluation:
Level 1: History, physical examination, Doppler examination (handheld)
Level 2: Noninvasive—duplex scan, plethysmography
Level 3: Invasive or complex evaluation—contrast venography, venous pressure measurements, IVUS, CT venography, MR venography
The accuracy of the diagnosis increases with the addition of imaging and invasive testing. Recording the date and method used to confirm the clinical impression can be added in parentheses after the CEAP recording as follows:
Full form: C2,4a,5, S Ep As, p Pr2,3,18 (Level 2, Feb 8, 2010)
Basic form: C5, S EpAs pPr (Level 2; Feb 8, 2010)
The main purpose of using the CEAP classification in patients with CVD is to distinguish primary venous disease from congenital varicosity and, most importantly, from secondary, post-thrombotic venous insufficiency.53 Evaluation and treatment of the three conditions are distinctly different.
Outcome assessment of therapy of varicose veins and more advanced CVD includes standardized objective criteria that reflect patient symptoms, characteristic signs, and objective measures of functional and disease-specific QOL.104
Generic QOL instruments
Generic QOL measures allow comparison with population norms and other disease states and provide a measure of any ill effects of treatment. Generic and disease-specific QOL measures are usually complementary and should be used together. Of the generic QOL instruments the Short Form 36-Item Health Survey (SF-36) has been used with success for assessment of global well-being of patients with varicose veins.105, 106
Venous disease–specific QOL instruments
Disease-specific QOL measurements are sensitive to the beneficial effects of treatment. Different disease-specific, patient-generated QOL tools and patient-reported outcomes (PROs) have been popular in venous disease reporting.107, 108 The most frequently used validated venous disease–specific instruments include the Venous Insufficiency Epidemiologic and Economic Study of Quality-of-Life (VEINES-QOL/Sym) questionnaire scale, the Chronic Venous Insufficiency Questionnaire (CIVIQ), the Aberdeen Varicose Vein Questionnaire (AVVQ), and the Charing Cross Venous Ulceration Questionnaire (CXVUQ).2, 109, 110, 111, 112, 113
The VEINES instrument consists of 35 items in two categories that generate two summary scores.109 The VEINES-QOL questionnaire comprises 25 items that study the effect of disease on QOL, and the VEINES symptom questionnaire (VEINES-Sym) has 10 items that measure symptoms. The focus of VEINES is on physical symptoms rather than psychologic and social aspects.
The CIVIQ 2 is a revision of an instrument developed to measure physical, psychologic, social, and pain factors.113 The revised version gives equal weight to each category, with 20 questions that provide a global score.3 CIVIQ has been used in studies3, 4 and proved to be a valid QOL measurement.
The AVVQ is a 13-question survey addressing all elements of varicose vein disease. Physical symptoms and social issues, including pain, ankle edema, ulcers, compression therapy use, and effect on daily activities, are examined in addition to cosmesis issues. The questionnaire is scored from 0 (no effect from varicose veins) to 100 (severe effect).114, 115
The CXVUQ was developed to provide a QOL measure for patients with venous ulcers. It provides a consistent measure of patient-reported QOL in venous ulcers regardless of the treatment selected. Combining it with a generic measurement instrument may provide valuable information on the progression of ulcers and on the available treatment measures.3
Physician-generated measurement tools
The physician-generated measurement tools include the CEAP classification,76, 77 which, as discussed previously, is an accurate description of signs and symptoms. However, the instrument contains too many static elements, especially in classes C4 and C5, and is not particularly suitable for an assessment of improvement after therapy.116
The VCSS was introduced by Rutherford et al104 and has been used successfully in several studies to evaluate changes in signs and symptoms over time and to quantify outcomes.108, 116, 117, 118, 119, 120, 121 The VCSS is based on physician assessment of nine clinical signs or symptoms of CVD, including pain, presence of varicose veins, edema, signs of CVI, and venous ulcers. Compliance with compression therapy is also assessed. The VCSS correlates well with the CEAP score and with ultrasonographic assessment of the severity of venous valvular incompetence or obstruction.113, 121, 122, 123, 124, 125, 126
A revised VCSS (Table IV) has been developed recently to clarify ambiguities, update terminology, and simplify application of the first version.78 It now incorporates the important language of the PRO assessment tools. The presumption of venous origin is intended for all clinical descriptors, and each limb is considered and scored separately. These revisions are currently being validated in a multicenter field test.
The strength of the VCSS is in its evaluative properties in identifying subtle intrasubject changes over time after an intervention.122, 123 An evaluation of each VCSS component allows outcome analysis on many levels, including technical, patient-reported, and clinical outcomes. In this sense, the revised VCSS is unique among clinical outcome assessments and PROs. Although it is administered by a physician, components such as pain are scored by patient responses to subjective questions.78
To assess the benefit of a therapy, primary clinical outcome standards are usually combined with a secondary surrogate outcome assessment.124 Recommended reporting standards and outcome assessment for endovenous ablation have recently been published in a joint statement of the AVF and the Society of Interventional Radiology.124
Clinical outcome studies evaluate the results of procedures on patient-focused outcomes, including symptom improvement, recurrence of varicosity, healing or recurrence of skin ulcers, improvement in the chronic, progressive symptoms of CVD, improved QOL, and cosmetic improvement.124
Relief of symptoms
To report improvement in symptoms of CVD, we recommend the use of the revised VCSS in daily clinical practice.78 For research and publications to report outcomes, one of the validated, disease-specific QOL instruments should be added, such as VEINES-QOL/Sym questionnaire scale, CIVIQ-2, the AVVQ, or the CXVUQ score in patients with advanced venous disease.2, 3, 109, 110, 111, 112, 113 A validated Likert pain scale can also be used, although most QOL questionnaires assess pain and discomfort.
We recommend using the basic CEAP clinical classification along with the revised VCSS in routine clinical practice. The revised VCSS is the best currently available instrument to quantify improvement and assess changes in the severity of CVD during follow-up (short-term, <1 year, midterm, 1-3 years, long term, >3 years; Table IV).108 For research purposes, the complete CEAP classification should be used in addition to evaluation of QOL after treatment to help to assess the patient's perception of the burden of the disease. A general QOL instrument, such as the SF-36, and one of the disease-specific QOL instruments (eg, VEINES, CIVIQ, Aberdeen) should both be used for this purpose.
Assessment of recurrent or residual varicose veins continues to be a challenge, and there are significant differences between physician assessments and patient-reported results. Patient satisfaction is directly related to the disappearance of the treated unsightly varicose veins. Photographing the treated areas is encouraged to assess late results on varicose vein recurrence and the status of skin changes. The Recurrent Varicose Veins After Surgery (REVAS) classification125 is a descriptive evaluation of recurrent and residual varicosities based on the physician's assessment, and we suggest its use, although further modification of the assessment is warranted.
Surrogate outcomes assess specific technical questions about a particular therapy. Surrogate outcomes may include patency of the ablated saphenous or perforating vein, patency of a venous stent, or hemodynamic results after interventions. These should be used with care when evaluating the clinical benefit of an intervention.124
Patency of an ablated vein and the length of the patent or obstructed segment of the vein, as confirmed with duplex scanning, should be reported when assessing anatomic success. Postprocedural duplex scanning ≤1 month, at 1 year, at 1 to 3 years, and >3 years is important to define periprocedural, early, midterm, and late failures. Timing of the study is important because saphenous patency after ablation on a periprocedural duplex image (<3 days) indicates technical failure, whereas late patency after early occlusion suggests recanalization. The type of recurrence on late duplex scanning should also be documented, because recanalization of a previously occluded axial vein should be distinguished from neovascularization, which implies the presence of multiple small tortuous connections between the saphenous stump or the femoral vein and a residual saphenous vein or its tributaries.124
The presence or absence of recurrent reflux in treated incompetent veins should be documented by duplex scanning, because this represents technical failure or success of the procedure.126 Changes in venous hemodynamics of the limb can also be documented by changes in plethysmographic findings before and after therapy; hemodynamic results frequently correlate with clinical outcome.95, 127
The safety of any procedure used for treatment of varicose veins or more advanced CVD needs to be established, and the procedurally related early adverse effects (<30 days) and late complications should be documented. Table V defines minor and major complications for reporting purposes.124
|No therapy, no consequence|
|Nominal therapy, no consequence; includes overnight admission for observation only|
|Requires therapy, minor hospitalization (<48 h)|
|Requires major therapy, unplanned increase in level of care, prolonged hospitalization (>48 h)|
|Permanent adverse sequelae|
Most patients who seek treatment for varicose veins have symptoms of aching, throbbing, feeling of a heavy leg, fatigue, cramps, pruritus, restless leg, ankle swelling, and tenderness or pain along bulging varicose veins. Some will have history of thrombophlebitis or bleeding from superficial varicose veins or have signs of more advanced CVD, such as edema, skin changes, including lipodermatosclerosis, eczema, pigmentation, atrophie blanche, corona phlebectatica, and healed or active ulceration. Less frequently, the veins are of cosmetic concern only.
Venoactive drugs have been available for treatment of symptoms of varicose veins and more advanced forms of CVD for decades, and they have also been used to decrease ankle swelling and accelerate ulcer healing.128 Many compounds have been tried with varying success, but the most promising drugs include saponins, such as the horse chestnut seed extract (aescin)129; gamma-benzopyrenes (flavonoids), such as rutosides, diosmin, and hesperidin; the micronized purified flavonoid fraction (MPFF),130 and other plant extracts such as French maritime pine bark extract. Synthetic products include calcium dobesilate, naftazone, and benzarone.131
The principle for the use of venoactive drugs has been to improve venous tone and capillary permeability, although a precise mechanism of action of most of these drugs is unknown. Flavonoids appear to affect leukocytes and the endothelium by modifying the degree of inflammation and reducing edema.56
A recent Cochrane review of 110 publications selected 44 well-documented studies for analysis.132 The meta-analysis found that there appeared to be an effect on edema and on restless leg syndrome. Diosmin, hesperidin, and MPFF have been the most effective venoactive drugs. Calcium dobesilate reduced cramps and restless legs. Diosmin and hesperidin helped healing of trophic skin changes and were useful in treatment of cramps and swelling. Rutosides decreased venous edema. This meta-analysis, however, concluded that there is insufficient evidence to support the global use of venoactive drugs in the treatment of CVD.132
|Guideline No.||7. Outcome assessment||GRADE of recommendation||Level of evidence|
|1. Strong||A. High quality|
|2. Weak||B. Moderate quality|
|C. Low or very low quality|
|7.1||We recommend that the revised Venous Clinical Severity Score is used for assessment of clinical outcome after therapy for varicose veins and more advanced chronic venous disease.||1||B|
|7.2||We recommend that quality-of-life assessment is performed with a disease-specific instrument to evaluate patient-reported outcome and the severity of chronic venous disease.||1||B|
|7.3||We recommend duplex scanning for follow-up of patients after venous procedures who have symptoms or recurrence of varicose veins.||1||B|
|7.4||We recommend reporting procedure-related minor and major complications after therapy.||1||B|
Horse chestnut seed extract
A separate Cochrane review of 17 randomized controlled trials (RCTs) found that horse chestnut seed extract (aescin) was effective to decrease edema, pain, and itching.129
The effect of pentoxifylline on ulcer healing was investigated in an RCT by Dale et al.133 In a double-blind, placebo-controlled trial, complete healing of venous ulcers was observed in 64% of patients receiving pentoxifylline and in 53% of the patients receiving placebo. However, the difference was not statistically significant.
In another RCT, Falanga et al134 investigated the effect of pentoxifylline on ulcer healing in 133 patients. Patients who were given 800 mg of pentoxifylline three times a day healed faster than those receiving placebo (P = .043). The median time to complete healing was 100, 83, and 71 days for placebo, pentoxifylline (400 mg), and pentoxifylline (800 mg) three times a day, respectively. A higher dose of pentoxifylline (800 mg three times a day) was more effective than the lower dose, although the higher dose had more significant gastrointestinal upset. The study concluded that pentoxifylline is effective in accelerating healing of leg ulcers.
In a more recent RCT, evidence to add pentoxifylline to a regimen of high-compression therapy to increase the chances of wound healing was of moderate quality.135 Pentoxifylline increased the proportion of ulcer healing compared with placebo, although this finding was only statistically significant (P = .046) when a secondary adjusted analysis was conducted. Pentoxifylline in an oral dose of 400 mg three times daily is suggested to patients with venous ulcers in addition to local care, compression garment, or intermittent compression pump (ICP) in the venous guidelines of the American College of Chest Physicians (ACCP; GRADE 2B).136
Diosmin and hesperidin
The effect of a combination of flavonoid drugs, diosmin, and hesperidin, in the form of MPFF, in addition to compression therapy, was evaluated on ulcer healing and symptoms of CVD in an RCT by Guilhou et al.137 Although the overall effect of the drug when combined with compression therapy, was weak, among patients with ulcers measuring ≤10 cm, more ulcers healed in the MPFF group than in the placebo group (32% vs 13%; P = .028) with a shorter duration of healing (P = .037). Sensation of heavy leg was less in patients treated with MPFF (P = .030).
A meta-analysis of five RCTs that included 723 patients with venous ulcers was reported by Coleridge-Smith et al.130 The study found that at 6 months, the chance of healing an ulcer was 32% better in patients treated with adjunctive MPFF than in those managed by conventional therapy alone (relative risk reduction, 32%; 95% CI, 3%-70%). These results confirm that venous ulcer healing is accelerated by MPFF treatment. For patients with persistent venous ulcers, flavonoids, in the form of MPFF given orally or sulodexide administered intramuscularly and then orally, are suggested in the ACCP guidelines (GRADE 2B).136 The SVS/AVF Guideline Committee also suggests that MPFF or pentoxifylline be used for patients with venous ulcers as an adjuvant therapy to compression to accelerate ulcer healing (GRADE 2B).
Compression therapy is the basic and most frequently used treatment of varicose veins, venous edema, skin changes, and ulcerations. Compression is recommended to decrease ambulatory venous hypertension to patients with CVD in addition to lifestyle modifications that include weight loss, exercise, and elevation of the legs during the day whenever possible.
The different forms of ambulatory compression techniques and devices include elastic compression stockings, paste gauze boots (Unna boot), multilayer elastic wraps, dressings, elastic and nonelastic bandages, and nonelastic garments. Pneumatic compression devices (such as an ICP), applied primarily at night, are also used in patients with refractory edema and venous ulcers.138 The rationale of compression treatment is to compensate for the increased ambulatory venous hypertension. Pressures to compress the superficial veins in supine patients range from 20 to 25 mm Hg. When upright, pressures of 35 to 40 mm Hg have been shown to narrow the superficial veins, and pressures >60 mm Hg are needed to occlude them.139
|Guideline No.||8. Medical treatment||GRADE of recommendation||Level of evidence|
|1. Strong||A. High quality|
|2. Weak||B. Moderate quality|
|C. Low or very low quality|
|8.1||We suggest venoactive drugs (diosmin, hesperidin, rutosides, sulodexide, micronized purified flavonoid fraction, or horse chestnut seed extract [aescin]) for patients with pain and swelling due to chronic venous disease, in countries where these drugs are available.||2||B|
|8.2||We suggest using pentoxifylline or micronized purified flavonoid fraction, if available, in combination with compression, to accelerate healing of venous ulcers.||2||B|
Varicose veins (CEAP class C2)
Reported case series of patients treated with elastic stockings frequently included the whole spectrum of patients with CVD (CEAP class C0-C6). Treatment with 30 to 40 mm Hg compression stockings in 112 patients (82% with varicose veins, 52% with edema, and 7% with healed or active ulcers) resulted in marked improvement in pain, swelling, skin pigmentation, activity, and well-being at 16 months after initiation of therapy, with compliance of 70%.140
A large systematic review of compression hosiery for uncomplicated simple varicose veins was recently published by Palfreyman and Michaels.34 They analyzed data of 11 prospective RCTs or systematic reviews, 12 nonrandomized studies, and 2 guidelines. Although compression improved symptoms, the study concluded that evidence is lacking to support compression garments to decrease progression or to prevent recurrence of varicose veins after treatment. However, these results could have been confounded by the high number of noncompliant patients included in these studies.34
The level of compression for patients with class C2 disease is also disputed. A meta-analysis by Amsler and Blattler141 of 11 RCTs suggested that in healthy patients, in those with C1 to C3 disease, and in those after varicose vein surgery, medium compression stockings (>20 mm Hg) may add no benefit over that obtained with a compression of between 10 and 15 mm Hg.
Until further data on appropriate tension of elastic garments are available, for patients with simple varicose veins (class C2), the SVS/AVF Guideline Committee suggests graded prescription stockings with an ankle pressure of 20 to 30 mm Hg (GRADE 2C). The most common length recommended is knee-high stockings, although thigh-high stockings and pantyhose are also available and may be appropriate for many patients. Skin breakdown and frank necrosis after incorrectly measured or applied garments have been reported.142 The Committee recommends that only those with the necessary skills and training prescribe stockings for patients with venous disease.
The efficacy of conservative vs surgical treatment for varicose veins was studied in an RCT by Michaels et al.143 The Randomised Clinical Trial, Observational Study and Assessment of Cost-Effectiveness of the Treatment of Varicose Veins (REACTIV) trial randomized 246 patients with simple varicose veins (class C2) to conservative management or surgery. Conservative treatment included lifestyle advice relating to exercise, leg elevation, management of weight and diet, and the use of compression hosiery. In the surgical arm, patients received the same lifestyle advice but also underwent high ligation, stripping, and phlebectomies. In the first 2 years after treatment, there was a significant QOL benefit for surgery of 0.083 quality-adjusted life-years (QALY; 95% CI, 0.005-0.16 QALY) based on the SF-6D score (derived from scores on six domains of the SF-36) and 0.13 QALY (95% CI, 0.016-0.25 QALY) based on the EQ-5D score (a five-dimension descriptive system of health-related QOL). Considerable benefits were also seen in symptomatic and anatomic measures. The authors concluded that surgery provides more symptomatic relief and improvements in QOL than conservative management with compression hosiery and lifestyle modifications in patients with uncomplicated varicose veins.
The cost-effectiveness of conservative vs surgical therapy or sclerotherapy in patients with varicose veins was also studied in the REACTIV trial.144 Cost-effectiveness analysis showed that surgery was significantly more cost-effective than both sclerotherapy and conservative management; sclerotherapy was less cost-effective than surgery but was still significantly more cost-effective than conservative treatment.
The need for a period of compression treatment before any intervention for simple varicose veins has been surrounded by controversy. Although third-party payers often require a trial of compression stockings, there is virtually no scientific evidence to support such a policy when saphenous ablation to treat superficial reflux is both more efficacious and cost-effective, a fact supported by data of the REACTIV trial. In addition, some patients, such as the obese or the elderly, may have difficulties applying an elastic stockings.138 One study of predominantly elderly (mean age, 72 years) women with CVD found that 15% could not apply elastic stockings and 26% needed considerable help to do so.145 On the basis of the available evidence, the Guideline Committee recommends against compression therapy being considered the primary treatment of symptomatic varicose veins (class C2) in those patients who are candidates for saphenous vein ablation (GRADE 1B).
CVI (CEAP classes C3-C6)
Compression therapy remains the standard of care for patients with advanced CVD and venous ulcers (class C3-C6). Compression therapy improves calf muscle pump function and decreases reflux in vein segments in patients with CVI.146, 147 In patients with venous ulcers, graded compression is effective as the primary treatment to aid healing of venous ulceration and as adjuvant therapy to interventions to prevent recurrence of venous ulcers.148
Compliance with compression therapy is important. In a cohort study by Mayberry et al,148 results of venous ulcer treatment in 113 patients treated over 15 years were reported. Ulcer healing with local care and compression averaged 5.3 months, and was 97% in compliant patients and 55% in noncompliant patients (P < .0001). Ulcer recurrence was 16% in compliant patients and 100% in noncompliant patients.
A systematic review of 24 RCTs on compression treatment on venous ulcers by Fletcher et al36 concluded that compression treatment improves the healing of ulcers compared with no compression149 and that high compression is more effective than low compression.150 The authors found no evidence that one form of compression treatment is better than another, although a previously published single-center experience suggested that low-stretch inelastic bandages were more effective in reducing venous reflux than elastic bandages.151 The ACCP guidelines suggest the use of an ICP in addition to a compression garment and local care for treatment of recalcitrant ulcers.136
A recent meta-analysis by Amsler et al152 examined data of 692 ulcer patients in eight RCTs and found that ulcer healing was faster, with an average of 3 weeks, with stockings than with bandages (P = .0002). Pain, examined in three studies, was also significantly less with stockings than with bandages (P < .0001).
Another systematic review by Partsch et al153 confirmed (GRADE 1A) that compression bandaging promotes healing of venous ulcers and that strong-compression hosiery (30 to 40 mm Hg) is more effective than medium- or low-compression stockings (GRADE 1B). This study observed GRADE 1A evidence that 30 to 40 mm Hg compression hosiery prevents recurrence of ulceration after healing. A recent evidence summary on ulcers by Coleridge-Smith154 supported these recommendations.
An RCT by Milic et al155 compared treatment with tubular compression (35 mm Hg) vs compression bandages (25 mm Hg) in 138 patients with extensive venous ulceration (ulceration surface, 20-210 cm2; duration, 7 months-28 years). The authors observed a healing rate of 93% in the treatment group vs 51% in the control group (P < .001). The recurrence rate at 12 months was 24% in the treatment group and 53% in the control group (P < .05). After additional compression treatment with the same treatment protocol, all 16 recurrent ulcers in the treatment group healed. In the control group, the healing rate of recurrent ulcers was 89%. This study suggests that for extensive and long-standing venous ulceration, multilayer tubular compression therapy improves healing and decreases but does not prevent ulcer recurrence.
The Effect of Surgery and Compression on Healing And Recurrence (ESCHAR) study156, 157 randomized 500 patients with leg ulcers to compression treatment alone or compression combined with superficial venous surgery. Compression consisted of multilayer compression bandaging, followed by class 2 (medium compression, 18-24 mm Hg, British Standard158) below-knee stockings. Superficial venous surgery included saphenous vein ablation with high ligation and stripping (HL/S) as well as avulsion of varicose veins of the calf. General anesthesia could not be used in 25% of the patients, and in these, high saphenous vein ligation alone was performed.
Compression treatment alone was as effective as compression with surgery to heal venous ulcers (65% vs 65%; hazard ratio, 0.84; 95% CI, 0.77-1.24; P = .85), but 12-month ulcer recurrence rates were reduced in the compression with surgery group vs those with compression alone (12% vs 28%; hazard ratio, −2.76; 95% CI, −1.78 to −4.27; P < .0001). The difference in ulcer recurrence rates persisted between the two groups at 4 years.159 A weakness of the trial was that there was no surgical arm without compression. This was unfortunate, because there is some evidence that saphenous vein disconnection improves venous function and heals venous ulcers, even without compression bandaging, if the deep veins are normal.160
A meta-analysis and Cochrane Collaboration review of 42 RCTs by Palfreyman et al42, 161 searched for evidence of effectiveness of dressings applied to venous leg ulcers in addition to compression. The authors concluded that there is no evidence that hydrocolloid or other dressings beneath compression are more effective than compression alone.
On the basis of high-quality clinical evidence, the Guideline Committee recommends compression therapy for patients with CVI (class C3-C6), including those with leg ulcers. Compression therapy is now considered the primary therapy to aid in healing venous ulcers (GRADE 1B) and the adjuvant therapy to superficial vein ablation to prevent ulcer recurrence (GRADE 1A).
Open venous surgery
Open surgical treatment of varicose veins with ligation and stripping of the GSV or SSV, combined with excision of large varicose veins, has been the standard of care of varicose vein treatment for more than a century. Invagination stripping was first attempted by Keller162 in 1905, Charles Mayo in 1906163 used an external stripper to remove the saphenous veins, and Babcock in 1907164 introduced intraluminal stripping from the ankle to the groin. High ligation and ankle-to-groin stripping using a metal or, later, a disposable Codman or Myers stripper has become the technique of choice to remove the saphenous vein. Recognition of frequent saphenous nerve injury during ankle-to-groin stripping and a better understanding of the venous hemodynamics changed the technique to a limited, groin-to-knee stripping.165
|Guideline No.||9. Compression treatment||GRADE of recommendation||Level of evidence|
|1. Strong||A. High quality|
|2. Weak||B. Moderate quality|
|C. Low or very low quality|
|9.1||We suggest compression therapy using moderate pressure (20 to 30 mm Hg) for patients with symptomatic varicose veins.||2||C|
|9.2||We recommend against compression therapy as the primary treatment of symptomatic varicose veins in patients who are candidates for saphenous vein ablation.||1||B|
|9.3||We recommend compression as the primary therapeutic modality for healing venous ulcers.||1||B|
|9.4||We recommend compression as an adjuvant treatment to superficial vein ablation for the prevention of ulcer recurrence.||1||A|
The invagination technique using a silk thread was perfected by Van Der Stricht166 and using the Myers stripper, without the acorn-shaped head, by Fullarton and Calvert,167 while perforate invaginate (PIN) stripping was introduced by Oesch168 and perfected in the United States by Goren and Yellin.169 Varicose vein excision performed from multiple larger skin incisions170, 171 was also abandoned, and ambulatory hook phlebectomy172, 173 and powered phlebectomy174, 175, 176 have been adopted.
During the past decade, endovenous thermal ablation has largely replaced the classic ligation and stripping operation, and open surgery for saphenous incompetence is performed much less frequently in the United States. Indications for ligation and stripping have been restricted to patients with large dilated and tortuous saphenous vein located immediately under the skin or to those with aneurysmal enlargement at the SFJ. Because of previous thrombophlebitis of the GSV or SSV, percutaneous placement of the laser fiber or radiofrequency (RF) catheter may not be possible, and open techniques have to be used for removal of the vein.
It is important to note, however, that the technique of open surgery has also changed substantially in recent years, and today a much less invasive procedure is performed to treat the incompetent saphenous veins than at anytime before. The groin incision is small, the incision at the knee for inversion stripping is either a puncture wound (PIN stripping) or a small stab wound, and the operation is performed under local tumescent anesthesia with increasing frequency.177 Although endothermal ablations are favored in the United States, in many countries conventional surgery remains the standard of care of patients with varicose veins.178
High ligation, division, and stripping of the GSV
The term high ligation and division implies ligation and division of the GSV at its confluence with the common femoral vein, including ligation and division of all upper GSV tributaries.51 Partial or complete preservation of the upper GSV tributaries, when the GSV is ligated, stripped, or ablated, must therefore be clearly stated. The term stripping means removal of a long vein segment, usually of the saphenous vein, by means of a device.51
The SFJ is dissected through a 3- to 4-cm-long oblique incision made in the groin crease just lateral to the femoral artery. The cosmetic appearance of the scar of such an incision is excellent. The SFJ is dissected bluntly and sharply, minimizing injury to the surrounding lymphatic tissue to avoid lymphatic leak or lymphedema. The anterior wall of the common femoral vein is always visualized to ensure accurate ligation of the SFJ. All tributaries are ligated and divided, preferably to the secondary branches,177 although firm evidence to support the need for this is not available. During dissection of the SFJ, the external pudendal artery is carefully preserved. Flush ligation of the saphenous vein is performed by double-ligating the vein with nonabsorbable suture close to the SFJ. It is important to avoid narrowing the femoral vein but equally important to minimize chances for a cul-de-sac in the saphenous vein stump.
To perform stripping, a flexible Codman stripper is often used for invagination stripping, without the removable acorn. The saphenous vein is tied to the tip of the stripper, and the vein is inverted into its lumen as the stripper is pulled down through a small incision made below the knee. Alternatively, an Oesch PIN stripper can be used.168, 169 Saphenous stripping below the knee is rarely performed today because of an increased incidence of reported saphenous nerve injury.165 To decrease bleeding in the saphenous tunnel after stripping, we suggest that the perisaphenous space be infiltrated with tumescent anesthetic solution.
The operation is usually completed with a miniphlebectomy to remove the bulging varicose veins through a small stab wound. The incisions are then infiltrated with tumescent solutions, the groin incision is closed in layers with nonadsorbable sutures, and the stab wounds are closed with sterile adhesive strips. The extremity is bandaged with an elastic bandage to decrease the risk of bleeding and to decrease swelling and pain. The operation is an outpatient procedure.
High ligation, division, and stripping of the SSV
Complete stripping of the SSV is rarely performed today because of possible injury to the sural nerve, but ligation of the SSV through a small transverse incision in the popliteal crease can be performed together with a limited invagination stripping of the vein to the mid calf, using the same technique described for GSV stripping. The safest technique to identify the SSV is intraoperative duplex scanning. There is no evidence that flush ligation is better than simple ligation of the vein when performed at a location closer to the skin, usually right in the knee crease. We recommend ligation of the SSV at this level, about 3 to 5 cm distal to the saphenopopliteal junction, since this can be performed through a very small skin incision and it avoids the need for deep dissection in the popliteal fossa, with the potential for associated wound complications or nerve injury.
Cryostripping of the GSV
To decrease hemorrhage within the saphenous tunnel and avoid any incision placed at the level of the knee, the technique of cryostripping has been suggested by some investigators.179 Cryostripping is an alternative method to invagination stripping.180 The technique is new in the United States and has not been fully evaluated.
For cryostripping, a cryosurgical system (Erbokryo CA, ERBE Elektromedizin GmbH, Tübingen, Germany), powered by liquid nitrogen, is used. After high ligation is completed, the cryoprobe is inserted into the saphenous vein and passed down to the level of the knee. As soon as the probe tip reaches the desired segment of the GSV, freezing is initiated. After the freezing cycle is maintained for a couple of seconds, the GSV is invaginated with an upward tug and is stripped toward the groin.
Ambulatory phlebectomy (stab or hook phlebectomy or miniphlebectomy) includes removal or avulsion of varicose veins through small stab wounds, made with a No. 11 Beaver blade or a 15° ophthalmologic blade, or through the puncture hole made with a larger, 19-gauge needle. Avulsion of the varicose veins is performed with hooks or forceps.172, 173 The most widely known hooks are Müller, Oesch, Tretbar, Ramelet, Varady, and Dortu-Martimbeau phlebectomy hooks.172, 173, 181 The veins are marked before surgery on the patient's skin with a marker, with the patient standing. The operation is usually performed under tumescent local anesthesia, using a solution of 445 mL of 0.9% saline, 50 mL of 1% lidocaine with 1:100,000 epinephrine, and 5 mL of 8.4% sodium bicarbonate.181
A rigid cannula with a light source can be used to inject the tumescent solution and also to transilluminate the subcutaneous tissues under the varicose veins.182 Injection of the tumescent solution can be performed using a large syringe or a Klein infiltration pump.181, 183 Digital compression is applied immediately, and infiltration of the wound with tumescent solution also provides good hemostasis. The skin incisions are usually approximated with sterile adhesive strips, and compression is applied to the extremity from foot to groin with an elastic compression bandage or compression stocking.
Transilluminated powered phlebectomy (TIPP; Trivex, InaVein, Lexington, Mass), an alternative technique for the removal of varicose veins, is especially useful for the removal of larger clusters of varicosities.184, 185 The potential advantages of TIPP include a decrease in the number of incisions and much faster removal of a large amount of varicose vein tissue. Just as for ambulatory phlebectomy, TIPP is often combined with saphenous vein ablation procedures or stripping and ligation to eliminate the source of the reflux underlying a varicose venous cluster formation. Instrumentation includes a central power unit with controls for irrigation pump and resection oscillation speeds, an illuminator hand piece that connects to the control unit using a fiber optic cable and provides high-intensity light for transillumination and delivery of tumescence irrigation, and a resector hand piece that has 4.5-mm and 5.5-mm options.
General, epidural, or spinal anesthesia can be used, depending on patient preference, while local tumescence anesthesia and conscious sedation may be options for limited varicosities in selected patients. In the procedure, TIPP instruments are introduced through tiny incisions. The illuminator produces transilluminated visualization of the veins to be removed, allows delivery of tumescent anesthetic solution, and performs hydrodissection. Through segmental counterincisions under direct visualization, the resector is positioned directly on the varicosity, and with powered endoscopic dissection, varicosities are mobilized free and then suctioned out of the leg. The addition of small 1.5-mm punch incisions allows for blood that collects in the vein tract to be flushed out with further tumescent anesthetic fluid.184, 185, 186
Preservation of the GSV
Preservation of the saphenous vein and treatment of varicose tributaries by phlebectomy has been advocated by Francesci in the CHIVA (cure conservatrice et hémodynamique de l'insuffisance veineuse en ambulatiore [ambulatory conservative hemodynamic management of varicose veins]) technique186, 187, 188, 189 and by Pittaluga in the ASVAL (ablation sélective des varices sous anesthésie locale [ie ambulatory selective varicose vein ablation under local anesthesia]) technique.126
The CHIVA technique
The CHIVA technique is a hemodynamic approach to varicose veins based on the principles of preserving the saphenous vein and venous drainage into the deep system.186, 190 The goal of CHIVA is to decrease the hydrostatic pressure in the saphenous veins and tributaries by the ligations placed in specific areas in the superficial venous system and to maintain the drainage function of the superficial veins, usually via a reversed flow.186 It represents a systematic approach to varicose veins rather than a single operative procedure.
Several anatomic patterns of reflux have been identified, each requiring a somewhat different operative strategy based on the underlying anatomy, studied in utmost detail with duplex scanning.188 A frequently used CHIVA technique presented in an RCT included proximal ligation of the incompetent saphenous vein; ligation, division, and avulsion of the incompetent varicose tributaries; and maintaining patency of the saphenous trunk, the competent saphenous tributaries, and saphenous venous drainage to the deep system through the so-called reentry perforators.191 A recently published RCT presented further details of the technique in six different types of varicosity.192
The ASVAL technique
Described by Pittaluga et al,126 the ASVAL operation includes preservation of the incompetent saphenous vein and stab phlebectomy of all varicose tributaries. Most patients operated on with this technique in one study had a less advanced stage of varicosity (CEAP class C2) and presented with no symptoms in 33% and no trophic skin changes in 91%.126
Perioperative thrombosis prophylaxis
Selective prophylaxis after risk assessment is warranted in patients who undergo venous surgery. The risk of DVT is increased in patients with thrombophilia, in those with a history of DVT or thrombophlebitis, and in obese patients. Similarly to the recently published ACCP guidelines,159 we recommend, for patients who do not have additional thromboembolic risk factors, that surgeons not routinely use specific thromboprophylaxis other than early and frequent ambulation (GRADE 2B). For those with additional thromboembolic risk factors, we recommend thromboprophylaxis with low-molecular-weight heparin, low-dose unfractionated heparin, or fondaparinux (GRADE 1C).
Results of open venous surgery
Results of open surgery have continued to improve during the past decades, and HL/S of the GSV performed as an outpatient procedure is a safe and effective operation. Surgical treatment is superior to conservative management of varicose veins with use of elastic garments. In the REACTIV trial,144 as discussed previously, results of surgery with compression treatment were compared with results of compression treatment alone in 246 patients with uncomplicated varicose veins.143 Surgical treatment included flush ligation of sites of reflux, stripping of the GSV, and multiple phlebectomies. At 2 years, surgery provided more symptomatic relief, better cosmetic results, and much-improved QOL over conservative management.
Marked improvement in QOL after open surgery was also demonstrated in an RCT by Rasmussen et al.177 In a prospective cohort study, Mackenzie et al193 monitored 102 consecutive patients who underwent varicose vein surgery. At 2 years after surgery, health-related QOL markedly improved to baseline when assessed with the Aberdeen Varicose Vein Symptom Severity Score and the SF-36. Improvement in QOL from varicose vein surgery has been shown to be statistically significant and clinically meaningful, matching the benefits observed after elective laparoscopic cholecystectomy.194
Recovery after conventional high ligation and inversion stripping with associated phlebectomies has been variable in different reports. In a series of 112 procedures performed in an office setting under locoregional anesthesia, using high ligation, PIN stripping, and hook phlebectomy, Goren and Yellin169 reported that all their patients resumed normal daily and sporting activities immediately after surgery and none had major complications. There was frequent bruising, but no tract hematomas, no nerve damage, and no DVTs were noted in this series. Follow-up of this series, however, was poor and the quality of evidence of treatment efficacy was low.
In an RCT that compared high ligation, stripping, and phlebectomy with RFA and phlebectomy, the open surgical group at 3 weeks had a 2.8% wound infection rate, 19.4% of the patients had ecchymosis, 33.3% had hematoma, and 5.6% had paresthesias.195 Most importantly, time to return to normal activities averaged 3.89 days (95% CI, 2.67-5.12 days; P = .02), only 46.9% of patients returned to routine daily activities within 1 day, and the number of days to return to work averaged 12.4 days (95% CI, 8.66-16.23 days).
HL/S vs high ligation alone
HL/S of the GSV reduced the risk of reoperation by two-thirds at 5 years after surgery in a prospective randomized study reported by Dwerryhouse et al.196 The authors randomized 133 legs of 100 patients to high ligation or HL/S. The need for reoperation was 6% in patients who underwent HL/S vs 20% in those patients who underwent high ligation alone (P > .02). The reason for this is that patients with only high ligation have recurrent reflux in the residual GSV, which causes new symptoms and increases the risk of reoperation.
The effect of saphenous stump closure on outcome
In an RCT, Frings et al197 found more neovascularization in patients who had the endothelium of the saphenous stump exposed vs those who had the saphenous stump oversewn with a running nonabsorbable polypropylene suture. (Neovascularization has been defined as the presence of multiple new small tortuous veins in anatomic proximity to a previous venous intervention.51) No conclusion could be reached, however, on the type of suture used to ligate the stump. Neoreflux was the same after ligature with absorbable suture vs nonabsorbable suture.
An RCT by Winterborn et al198 observed no difference in varicose vein recurrence if a standard saphenofemoral ligation (transfixation and ligation using nonabsorbable suture, with exposed endothelium of the stump) or a flush saphenofemoral ligation (the stump was oversewn with a running polypropylene suture, with no endothelium exposed) was used. At 2 years, the recurrence rate was 33% in the standard group and 32% in the flush group (P = .90). Neovascularization was present in 22% in standard group and in 19% in the flush group (P = .57).
Another RCT on 389 limbs by van Rij et al199 observed that placement of a polytetrafluoroethylene (PTFE) patch over the SFJ halved recurrence at 3 years compared with controls and that a synthetic patch was an effective mechanical suppressant of neovasculogenesis at the groin. These findings were not confirmed, however, in a smaller RCT by Winterborn and Earnshaw.200 This study randomized 40 legs to insertion or no insertion of a PTFE patch over the ligated SFJ. The overall complication rate was 35% (11 legs), with no statistically significant difference between the groups. By 2 years postoperatively, duplex imaging showed neovascularization had developed at the SFJ in 4 of 16 legs without a patch and in 5 of 16 legs with a patch (P = 1.0). We recommend double ligation of the SFJ with nonabsorbable suture (GRADE 1C), but we suggest against using a PTFE patch to cover the saphenous stump (GRADE 2C).
Wound complications usually occur in 3% to 10% of patients,178, 201 with reported wound infection rates as low as 1.5% and as high as 16%.202, 203, 204 An RCT by Biswas et al205 evaluated the efficacy of the duration of compression therapy in 300 postsurgical patients. The study found no benefit in wearing compression stockings for >1 week after uncomplicated HL/S of the GSV with respect to postoperative pain, number of complications, time to return to work, or patient satisfaction for up to 12 weeks after surgery.205
In a recent RCT that included 443 patients who underwent groin surgery for varicose veins, the risk of wound infections and wound-related complications was reduced with use of a single dose of perioperative antibiotic prophylaxis.206 Wound outcomes were worse with higher body mass index (OR, 0.92; 95% CI, 0.87-0.97; P = .005) and with current smoking (OR, 0.5; 95% CI, 0.3-0.9; P = .033).206
Using conventional stripping techniques, the incidence of saphenous nerve injury in one study was 7% in patients who had stripping to the knee and 39% in those who had stripping to the ankle.165 Sural nerve injury occurred at a rate of 2% to 4%. Common peroneal nerve injury occurred in 4.7% in one series and in 6.7% in another series in those patients who underwent SSV ligation or stripping.207
Injury to the femoral artery and vein
Injury to the femoral vein or artery during high ligation of the saphenous vein is, fortunately, very rare. Consequences can be disastrous, because most are not recognized immediately,208 and a delay in treatment may result in massive DVT or even loss of the limb from the severe arterial injury.
DVT and pulmonary embolism (PE) are rare but occasionally serious complications of superficial vein surgery. In a prospective study, Van Rij209 performed duplex scanning in 377 patients before surgery and then at 2 to 4 weeks and at 6 to 12 months after surgery. Acute DVT was detected in 20 patients (5.3%). Eight were symptomatic and no PE was observed. Although this series suggests an incidence of DVT that is higher than previously believed, this complication had minimal short-term or long-term clinical significance. Of the 20 DVTs, 18 were confined to calf veins, and half of the DVTs had resolved without deep venous reflux at 1 year. Others reported an incidence of 0.5% for DVT and 0.16% for PE.201
Conventional stripping vs cryostripping
An RCT by Menyhei et al179 randomized 160 patients to high ligation, division, and cryostripping vs conventional stripping. No differences in QOL measures were noted by the SF-36 questionnaire at 6 months between the two groups. Bruising was more frequent after conventional stripping (P = .01), but there was no difference in pain score or complications. Two patients from the conventional stripping group and six from the cryostripping group were excluded from analysis because of incomplete stripping. Experience with this technique in the United States is limited, and at this time no recommendation is made.
Results of superficial vein surgery on ulcer healing and recurrence
High quality evidence indicates that superficial vein surgery reduces ulcer recurrence. The ESCHAR study,156, 157 as discussed earlier, randomized 500 patients with leg ulcers, who had isolated superficial venous reflux or mixed superficial and deep reflux, to compression treatment alone or to compression combined with superficial venous surgery. Compression consisted of multilayer compression bandaging, followed by class 2 below-knee stockings. Surgery included high ligation, division, and saphenous stripping. Rates of healing at 24 weeks were similar in both groups (65% vs 65%; hazard ratio, 0.84; 95% CI, 0.77-1.24; P = .85), but 12-month ulcer recurrence rates were reduced in the compression with surgery group (12% vs 28%; hazard ratio, −2.76; 95% CI, −1.78 to −4.27; P < .0001). The difference in ulcer recurrence rates between the two groups at 4 years was significant.157
Powered phlebectomy vs stab phlebectomy
A limited number of studies, both retrospective and prospective, have been performed. Overall, reported complications after TIPP have varied considerably and include ecchymosis and hematoma in 4.9% to 95%, paresthesias and nerve injury in 9.5% to 39%, skin perforation in 1.2% to 5%, superficial phlebitis in 2.4% to 13%, swelling in 5% to 17.5%, hyperpigmentation in 1.2% to 3.3%, residual or recurrent varicose veins in 9.1% to 21.2%, and DVT in <1%.174, 210 In a comparison between TIPP and stab phlebectomy, TIPP revealed a difference in the number of incisions174 and in the speed of the procedure.178, 179 However, there was no difference in bruising, cellulitis, and numbness at 1 to 2 weeks; nerve injury, residual veins, cosmesis score, and overall satisfaction at 6 weeks; and cosmesis or recurrence at 6 and 12 months. A learning curve to determine just how aggressive the surgeon can be during the procedure to eliminate all veins while minimizing bruising and other local complications has also been noted.211, 212 These reports, however, used an early-generation system, higher oscillation speeds (800-1200 rpm), and minimal tumescence.
With a newer-generation system and technical modifications incorporating a lower oscillation frequency (300-500 rpm), a dermal punch drainage technique, secondary tumescence with extensive flushing of residual hematoma and residual venous tissue fragments, and an additional tertiary subdermal tumescence phase, the results of powered phlebectomy have improved.213 The largest series214 using modified techniques included 339 patients with a mean operative time of 19.7 minutes, and >60% of cases involving 10 to 20 incisions. Discoloration of the skin was noted in eight patients (2.3%), excessive or hypertrophic scarring in two (0.6%), and cellulitis in one (0.3%). There were no significant hematomas and no recurrent varicose veins at 12 weeks in this series, and overall, 99.7% reported good outcomes and satisfaction.
Although no published data clearly show any statistically significant advantage of TIPP over conventional phlebectomy except for fewer incisions, most published literature represents earlier-generation systems and techniques. With the newer-generation system and modified technique and learning curve adjustments, TIPP has become less traumatic, which may decrease potential complications and improve outcomes over those previously reported. Until new trials are performed, any additional potential benefits of TIPP have yet to be substantiated.
Results with preservation of the saphenous vein
Results with CHIVA
Two RCTs188, 191 compared standard treatment (compression or high ligation, stripping, and phlebectomy) with CHIVA approaches with specific anatomic patterns of reflux (types I and III shunts). For the specific venous anatomy evaluated in these trials, such techniques were better than compression in preventing ulcer recurrence188 and were at least equivalent to stripping of varicose veins.191
In a single-center RCT, Zamboni et al188 used CHIVA or compression to treat 47 legs with venous ulcers. At a mean follow-up of 3 years, healing was 100% (median healing time, 31 days) in the surgical group and 96% (median healing time, 63 days) in the compression group (P < .02). The recurrence rate was 9% in the surgical group and 38% in the compression group (P < .05). The study excluded patients with post-thrombotic syndrome, deep vein reflux or obstruction, or excessive ulcers (>12 cm).
In a recent open-label, single-center RCT, Pares et al192 randomized 501 patients with primary varicose veins into three arms: CHIVA, stripping with clinic marking, and stripping with duplex marking. The primary end point was recurrence within 5 years, assessed clinically by independent observers. Clinical outcomes in the CHIVA group were better (44.3% cure, 24.6% improvement, 31.1% failure) than in the stripping with clinic marking (21.0% cure, 26.3% improvement, 52.7% failure) and stripping with duplex marking (29.3% cure, 22.8% improvement, 47.9% failure) groups. The OR between the stripping with clinic marking and CHIVA groups, of recurrence at 5 years of follow-up, was 2.64 (95% CI, 1.76-3.97; P < .001). The OR of recurrence at 5 years between the stripping with duplex marking and CHIVA group was 2.01 (95% CI, 1.34-3.00; P < .001).
Although the first two RCTs focused on a small group of patients with varicose veins, the trial of Pares et al192 deserves credit for including the full spectrum of patients with primary varicose veins. CHIVA is a complex approach, and a high level of training and experience is needed to attain the results presented in this RCT. However, the results achieved by a few outstanding interventionists does not support offering this procedure to all practitioners. Although CHIVA has called attention to the importance of directing surgical procedures toward the patient's venous anatomy and function, it still requires considerable education of venous interventionists willing to learn this approach.
Results with ASVAL
Good clinical results have been reported with the ASVAL procedure in a select group of patients. After 4 years of follow-up, no reflux or minimal reflux (<500 ms) was found in 66.3% of 303 limbs, and symptoms improved in 78% and varicose vein recurred in only 11.5%.126
Current selection criteria for the ASVAL procedure include patients with mild CVD, with either a competent terminal valve or segmental saphenous reflux, and no or minimal symptoms. Most had a GSV diameter <8 mm or SSV diameter <6 mm. Although promising in this group of patients with largely cosmetic concerns, the technique is not generalizable and has not been evaluated in any comparative studies against well-validated surgical techniques (GRADE 2C).
Recurrent varicose veins
Recurrent varicose veins after surgical treatment are a serious problem, and many patients require additional interventions. Surgery for recurrence represents a considerable proportion of the workload of surgeons operating on varicose veins. The operations are technically more demanding and complicated than first-time operations.
Recurrent varicose veins after surgery (REVAS) have been reported at rates ranging from 6.6% to 37% at 2 years177, 215, 216 and up to 51% at 5 years.217, 218, 219, 220, 221, 222 Most studies reported 2-year clinical recurrence rates of 20% to 37% after conventional or cryostripping, when residual or recurrent varicose veins noted by both the patient and the surgeon were counted.216, 220 In a 34-year follow-up study of 125 limbs, Fischer et al221 noted ultrasonographic evidence of saphenofemoral reflux in 75 limbs (60%). Allegra et al219 noted a 5-year recurrence rate of 25% in a large study that included 1326 patients. Despite technically correct surgery, confirmed with postoperative duplex scanning, recurrence at the SFJ occurred in 13%, at the saphenopopliteal junction in 30%, and at both in 36%. Factors predicting recurrence were SSV reflux, perforating vein incompetence, and post-thrombotic deep vein incompetence.
A consensus document on REVAS found that the main reasons for recurrence after surgery were technical and tactical errors, neovascularization at the groin, and progression of the underlying disease.217 In a multicenter registry that included 199 limbs of 170 patients with REVAS, the most frequent sources of recurrent reflux were the SFJ (47.2%), followed by leg perforators (54.7%), neovascularization (20%), and technical failure (19%); both neovascularization and technical failure occurred in 17%, and in 35%, the cause was uncertain or unknown.215 In a study of 279 limbs with recurrent varicose veins at the groin, Geier et al223 found a long residual saphenofemoral stump in about two-thirds of cases, recurrences became apparent after a mean time interval of 6.3 years, and symptoms occurred after a mean of 8.5 years.
Treatment of symptomatic recurrent varicose veins should be performed after careful evaluation of the patient with duplex scanning to assess the etiology, source, type, and extent of recurrent varicose veins. Sites of reflux at the SFJ or saphenopopliteal junction and at the sites of clinically important perforating veins should be searched. Duplex scanning is excellent in identifying residual saphenous stumps, but it has a sensitivity of 62% and a positive predictive value of only 26% to identify correctly the presence of neovascularization.224 Histologic examination is still the gold standard when trying to differentiate between different types of groin recurrences. If perineal or medial thigh varicosity suggests pelvic reflux, evaluation with transvaginal ultrasonography may be used, although the gonadal and pelvic veins are best evaluated with MR or contrast venography.225, 226
Techniques and results of treatment
Ambulatory phlebectomy, sclerotherapy, or endovenous thermal ablation of accessory saphenous or perforating veins can be performed, depending on the source, location, and extent of recurrence. Conventional open surgery usually involves repeat disconnection of the SFJ combined with ambulatory phlebectomy. The SEPS procedure to treat incompetent perforating veins in patients with advanced disease (class C5-C6) can be useful. Endovenous thermal ablation can also be performed to treat persistent great, small, or accessory saphenous veins or perforators, and foam sclerotherapy has been used successfully, alone or with phlebectomy, to treat recurrent varicose veins and perforating veins.227
Phlebectomy alone, without repeat ligation of the saphenous stump, was studied by Pittaluga et al228 for treatment of recurrent varicose veins in 473 limbs. After 3 years of follow-up, those with phlebectomy alone and those with phlebectomy and stump ligation had similar rates of freedom from inguinal reflux (90.8% vs 92.9%) and from varicose repeat-recurrence (90.8% vs 91.9%), suggesting that the increased complications of groin reoperations can be avoided in some patients.
In a prospective nonrandomized trial, recurrent varicosity was treated by van Groenendael et al229 in 149 limbs with open surgery and in 67 with EVLA. Wound infections (8% vs 0%; P < .05) and paresthesias (27% vs 13%; P < .05) were more frequent in the surgery group, whereas the EVLA group reported more perioperative pain or tightness (17% vs 31%; P < .05). Hospital stay in the surgery group was longer (P < .05) as was the delay before resuming work (7 vs 2 days; P < .0001). At 25 weeks of follow-up, repeat recurrences were reported in 29% after surgery and in 19% after EVLA (P = .511). Similar results were reported by the same authors in patients who underwent open surgery or EVLA for recurrent varicose veins of the SSV.230 These nonrandomized studies provide only low-quality evidence that EVLA, when possible to perform, results in lower complication rates and better socioeconomic outcome in patients with recurrent varicose veins than open surgery.
Creton and Uhl227 treated 129 limbs with recurrent varicose veins using foam sclerotherapy with 1% polidocanol combined with surgical treatment. All patients had phlebectomies, and 20 had repeat ligation of the saphenous stumps. Foam sclerotherapy combined with surgery resulted in 93% closure of the saphenous stumps and no recurrent varicose veins. Two patients had asymptomatic DVT. Another study, by O'Hare et al,231 found no difference in occlusion rate of primary and recurrent varicose veins (75% vs 72%) at 6 months when treated with ultrasonographically guided foam sclerotherapy.
Endovenous thermal ablations
Endovenous thermal ablation of the saphenous veins is a relatively new, minimally invasive percutaneous procedure with several advantages over standard open surgery.232 It requires local tumescent anesthesia and is an outpatient procedure that can be performed in an office setting. The procedure is done under ultrasonographic guidance using percutaneous catheter placement; patients complain less of pain and discomfort and return to work earlier than after open surgical procedures. Endovenous thermal ablation includes EVLA and RFA (Table VI). A third technique that recently emerged includes the use of superheated steam, which destroys the endothelial layer and causes shrinkage of the collagen.233 Early clinical application, as reported by Milleret et al,233 is promising, but available data are not sufficient to include this technique in our report in more detail. EVLA and RFA are similar techniques in many ways, so a discussion of concepts and data applying to both of these procedures is appropriate.
|Laser device name|
|VenaCure EVLT System||AngioDynamics, Inc, Queensbury, NY||810|
|Medilas D FlexiPulse||Dornier MedTech, Kennesaw, Ga||940|
|Pro-V||Sciton Inc, Palo Alto, Calif||1319|
|Vari-lase bright tip, Vari-lase platinum bright tip||Vascular Solutions, Inc, Minneapolis, Minn||810, 980|
|Cooltouch CTEV||CoolTouch Inc, Roseville, Calif||1320|
|ELVeS PL Laser System||Biolitec Inc, East Longmeadow, Mass||1470|
|Radiofrequency device name|
|ClosureFast||VNUS Med Tech, San Jose, Calif|
|ClosureRFS Stylet||VNUS Med Tech, San Jose, Calif|
|Celon RFITT||Olympus Medical Systems, Hamburg, Germany|
Occlusion (ablation) of the treated vein is achieved by heat delivered into the vein through the percutaneously placed laser fiber or an RF catheter. Endovenous thermal ablation causes a direct thermal injury to the vein wall, resulting in destruction of the endothelium, collagen denaturation of the media, and fibrotic and thrombotic occlusions of the vein. The endothermal ablations by laser also provide direct heat injury to the blood.234 Blood coagulates at 70°C to 80°C, steam bubbles form at 100°C, and carbonization of coagulum is observed at 200°C to 300°C. Currently available laser fibers include hemoglobin-specific laser wavelengths (810, 940, and 980 nm) and water-specific laser wavelengths (1319, 1320, and 1470 nm).
Laser treatment was first recommended by Puglisi235 in 1989, but it was 10 years later that Boné236 reported the first successful clinical application of a diode laser for the treatment of varicose veins. Boné et al237reported EVLA first in the English literature in 2001, and the technique was soon adopted and perfected in the United States and worldwide.7, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250
|Guideline No.||10. Open venous surgery||GRADE of recommendation||Level of evidence|
|1. Strong||A. High quality|
|2. Weak||B. Moderate quality|
|C. Low or very low quality|
|10.1||For treatment of the incompetent great saphenous vein, we suggest high ligation and inversion stripping of the saphenous vein to the level of the knee.||2||B|
|10.2||To reduce hematoma formation, pain, and swelling, we recommend postoperative compression. The recommended period of compression in C2 patients is 1 week.||1||B|
|10.3||For treatment of small saphenous vein incompetence, we recommend high ligation of the vein at the knee crease, about 3 to 5 cm distal to the saphenopopliteal junction, with selective invagination stripping of the incompetent portion of the vein.||1||B|
|10.4||To decrease recurrence of venous ulcers, we recommend ablation of the incompetent superficial veins in addition to compression therapy.||1||A|
|10.5||We suggest preservation of the saphenous vein using the ambulatory conservative hemodynamic treatment of varicose veins (CHIVA) technique only selectively in patients with varicose veins, when performed by trained venous interventionists.||2||B|
|10.6||We suggest preservation of the saphenous vein using the ambulatory selective varicose vein ablation under local anesthesia (ASVAL) procedure only selectively in patients with varicose veins.||2||C|
|10.7||We recommend ambulatory phlebectomy for treatment of varicose veins, performed with saphenous vein ablation, either during the same procedure or at a later stage. If general anesthesia is required for phlebectomy, we suggest concomitant saphenous ablation.||1||B|
|10.8||We suggest transilluminated powered phlebectomy using lower oscillation speeds and extended tumescence as an alternative to traditional phlebectomy for extensive varicose veins.||2||C|
|10.9||For treatment of recurrent varicose veins, we suggest ligation of the saphenous stump, ambulatory phlebectomy, sclerotherapy, or endovenous thermal ablation, depending on the etiology, source, location, and extent of varicosity.||2||C|
The use of RF for saphenous ablation was approved by the U.S. Food and Drug Administration (FDA) in 1999, and the first reports were published in 2000.251, 252, 253 Experience with RF rapidly accumulated,8, 195, 246, 254, 255, 256, 257, 258, 259 although the first-generation device was somewhat cumbersome to use. The current ClosureFast RF catheter (VNUS Medical Technologies, San Jose, Calif), introduced in 2007, is more user-friendly, and treatment with it is faster than with the first-generation device.260 This rendition does not need an irrigation system, and the entire pullback procedure takes 3 to 4 minutes. A second RFA system for bipolar RF-induced thermotherapy, Celon RFITT, is now available in Europe (Olympus Medical Systems, Hamburg, Germany).261 This system generates heat at 60°C to 85°C and operates with a continuous pullback technique at a pullback speed of 1 cm/s. Clinical studies to investigate the efficacy of this device are under way.
To select the right patient for endovenous thermal ablation, thorough preprocedural duplex ultrasonography must be performed. The identification of all refluxing venous segments and their ablation during the procedure is the key to minimizing recurrence of varicose veins. Inappropriate vein size (<2 mm and >15 mm for RFA), a history of superficial thrombophlebitis resulting in a partially obstructed saphenous vein, and the uncommon occurrence of a tortuous GSV on duplex examination are potential contraindications. Patients with ropy varicose veins located immediately under the skin or those with aneurysmal dilations of the SFJ are probably better served with conventional high ligation, division, and stripping. Those with extensive deep venous occlusion should undergo superficial ablation selectively, because superficial veins in these patients may be important for venous outflow from the leg.
There are no absolute contraindications to EVLA, including vein diameter, although Lawrence et al262 have recently suggested an association of central GSV diameter >8 mm with increased risk of extension of thrombus into the femoral vein. Other relative contraindications to endovenous saphenous vein ablation (EVLA or RFA) include uncorrectable coagulopathy, liver dysfunction limiting local anesthetic use, immobility, pregnancy, and breastfeeding.
The techniques of vein ablations using EVLA or RFA are similar. For GSV ablation, the patient is placed in the reverse Trendelenburg position first, and the GSV is accessed percutaneously under ultrasonographic guidance using a micropuncture needle inserted into the vein just distal to the knee. Treatment is usually limited to the above-the-knee segment of the vein to avoid injury to the saphenous nerve, which is close to the saphenous vein in the calf (Fig 1). A microguidewire is inserted in the vein, followed by placement of a 4F microsheath. With the help of a floppy guidewire, the sheath is exchanged for a 5F sheath, allowing placement of the laser fiber or for an 11-cm-long 7F sheath for placement of the RF catheter.
The laser fiber or RF probe is introduced through the sheath into the GSV and advanced proximally to the SFJ. The tip of the catheter is then positioned 1 cm distal to the confluence with the superficial epigastric vein or 2 cm distal to the SFJ. The patient is then placed in the Trendelenburg position and the vein emptied by elevation and compression by instillation of perivenous tumescent anesthesia with a diluted anesthetic solution (100-300 mL of the 500-mL solution of 445 mL of 0.9N saline, 50 mL of 1% lidocaine with 1:100,000 epinephrine, and 5 mL of 8.4% sodium bicarbonate)232 into the saphenous subcompartment. The vein can be further compressed by applying negative pressure in the side port with a 20-mL syringe. Tumescent anesthesia enhances contact of the vein wall with the catheter or laser fiber for therapeutic effectiveness and provides analgesia and a heat sink around the treated vein, thereby decreasing heat-related injury to surrounding tissues, which is reflected in a lower incidence of skin burns and paresthesias.
The vein is then ablated in a retrograde fashion to just above the puncture site. The laser fiber is withdrawn at a rate of 1 to 2 mm/s for the first 10 cm and 2 to 3 mm/s for the remaining distance. For optimal treatment, 50 to 80 J/cm energy is delivered when using the 810-nm diode laser. With the RF catheter system, sequential heating of the vein is performed at 7-cm intervals, heating the vein to 120°C in each 20-second cycle. The first segment is treated twice. At the end of the procedure, the saphenous vein is reimaged to confirm successful obliteration and absence of thrombus protrusion into the femoral vein or, if the SSV was treated, into the popliteal vein. If a patent segment is identified, re-treatment is advisable.
Graduated compression stockings with an ankle pressure of 30 to 40 mm Hg or an elastic or nonelastic wrap is placed on the leg at the end of the procedure. Early ambulation is encouraged, and the patient leaves for home a few hours after the procedure. Recent evidence supports elastic compression for at least 1 week after superficial venous interventions.205 During this time, the patient is asked to have compression of the leg day and night. Although the risk of DVT, heat-induced thrombus extension, or PE is rare263, 264 and therefore the yield is low, we suggest postprocedural duplex scanning within 24 to 72 hours to exclude any thrombotic complication. Evidence to support this recommendation is of low quality (GRADE 2C).
Data to support the routine administration of thromboprophylaxis with heparin are not available. Selected patients with a history of thrombophlebitis, DVT, known thrombophilia, or obesity are candidates for thrombosis prophylaxis.159 In one case series, age >50 years was a predictor of heat-induced thrombus extension into the femoral vein.246 Lawrence et al262 reported 500 patients who underwent RFA, and 13 (2.6%) experienced thrombus bulging into the femoral vein or adherent to its wall, which was treated with low-molecular-weight heparin. All of these patients had thrombus retraction to the level of the SFJ in an average of 16 days. A significantly higher rate of proximal thrombus extension was noted in those patients with a history of DVT and in those with a GSV diameter of >8 mm (P < .02).
For high-risk patients, several interventionists use a single, preventive dose of low-molecular-weight heparin before or at the beginning of the procedure, although data on the effectiveness of such prophylaxis are not available.246 Performing the operation as an outpatient procedure under local or tumescent anesthesia permits early ambulation that decreases the risk of thromboembolic complications. In addition, the use of elastic compression and frequent leg elevation are also aimed at prevention of DVT or PE.
Results of EVLA
Early results from Navarro et al237 in 40 patients confirmed 100% saphenous occlusion at 4.2 months and suggested rapid and widespread use of this therapy. Min et al266 reported 3-year results in 499 legs treated with laser, demonstrating a saphenous occlusion rate of 93%. In a large single-center cohort study, Myers and Jolley264 treated 509 limbs with an 810-nm laser during a 5-year period. The rate of primary occlusion at 4 years was 76%, and the secondary occlusion rate was 97%. A systematic review of EVLA for varicose veins by Mundy et al7 found an early saphenous occlusion rate of 88% to 100%, and a review of 13 studies showed evidence of short-term benefits.
EVLA of the SSV has been described by several groups.266, 267, 268 Proebstle et al260 observed a 100% occlusion rate at 6 months by using a 940-nm diode laser to treat the SSV in 41 patients. In a prospective cohort study, Huisman et al267 treated the SSV in 169 limbs with an 810-nm diode laser. The treated length averaged 23 cm (range, 6-53 cm). Occlusion of the SSV after 3 months was achieved in 98%.
Knipp et al268 reported a 1-year saphenous occlusion rate of 95.9% in 460 limbs treated with 810-nm EVLA and observed sustained improvement using the VCSS. These authors also found that outcomes were not affected by the presence or absence of deep vein insufficiency.
In an international endovascular working group registry that included 3696 procedures, bruising after EVLA was observed in 75%, paresthesia in 3%, thrombophlebitis in 1.87%, skin burns in 0.46%, and DVT or endovenous heat–induced thrombosis in 0.27%.263 Only one patient had a PE. In 509 patients treated with laser by Myers and Jolley,264 thromboembolic complications occurred in 3%. Knipp et al268 observed a DVT rate of 2.2% in patients who underwent EVLA with phlebectomy or perforator ligation and a thrombus extension rate into the femoral veins of 5.9%. When EVLA alone was performed, there was 0% true DVT but a high thrombus extension rate (7.8%) into the femoral vein. The risk-adjusted thrombosis prevention protocol in this study had no effect on thrombus extension rate into the femoral vein. Puggioni et al246 observed a 2.3% rate of thrombus extension into the femoral vein after EVLT.
Laser treatment of the SSV may result in sural nerve paresthesia, with an incidence of 1.3% in the series of Huisman et al.267 Superficial thrombophlebitis developed in 6 of 169 patients (3.5%) in this study, but serious complications did not occur.
Laser wavelength, radial fiber, and efficiency
Evidence to support the efficiency of higher-wavelength vs lower-wavelength laser fibers has been controversial. A prospective, randomized, single-center, single-surgeon trial evaluated lasers with 810- or 980-nm wavelengths.243 Thirty legs were treated for each group by a surgeon blinded for the type of laser. Patients in the 980-nm group showed less bruising than those in the 810-nm group (P < .005). Saphenous occlusion rates at 1 year, however, were identical, and no major complications occurred in either group. Studies by Proebstle et al240 and Pannier et al,269 however, suggest that laser light with longer wavelengths (1320-nm Nd:YAG laser, 1470-nm diode laser) may reduce adverse effects without compromising abolition of reflux.
Another recent development is the introduction of the ELVeS Radial Fiber, a fiber with a radial emitting laser tip (Biolitec AG, Jena, Germany), which may decrease the amount of energy required to occlude the vein, thus decreasing pain and adverse effects of thermal ablations. A RCT by Doganci and Demirkilic270 compared early occlusion rates of two different laser fibers. The immediate occlusion rate was 100% for both the 980-nm laser and bare-tip fiber and the 1470-nm laser with the radial fiber. Other clinical trials with such fibers are under way.
EVLA vs high ligation, division, and stripping
Seven RCTs250, 265, 271, 272, 273, 274, 275 compared results of laser ablation with open high ligation, division, and saphenous stripping. An RCT by Rasmussen et al265 found no difference in short-term safety and efficacy or early QOL between EVLA using a wavelength of 980 nm and HL/S, but EVLA was more expensive than open surgery. The recurrence rate of varicose veins at 2 years was 33% after high ligation and 26% after EVLA (P = NS).177 The study concluded that treatments were equally safe and efficient in eliminating saphenous reflux, alleviating symptoms and signs of varicose veins, and improving QOL.
Darwood et al271 performed an RCT comparing EVLA with surgery for treatment of primary varicosity and saphenous incompetence. EVLA and surgery were comparable in ablation of reflux and in disease-specific QOL, but return to normal activity averaged a median of 2 days (range, 0-7 days) after EVLA vs 7 days (range, 2-26 days) after surgical treatment (P = .001). Return to work was 4 days (range, 2-7 days) after EVLA vs 17 days (range, 7.25-33.25 days) after surgery (P = .005), suggesting important socioeconomic advantages for EVLA. These RCTs177, 271 both found a tendency toward less bruising and pain with EVLA than with surgery.
In a single-center RCT, de Medeiros and Luccas272 compared EVLA using an 810-nm laser with stripping in 20 patients who had bilateral saphenous incompetence. Each patient served as his or her own control. There was significantly less edema and bruising early after the laser procedure, but at 2 years, no difference was noted in esthetic results, patient satisfaction, or pain, and the authors concluded that midterm results of laser were comparable to surgery.
Vuylsteke et al273 randomized 164 patients to EVLA (80 patients) or HL/S (84 patients). Patient follow-up lasted an average of 9 months after surgery. The study found shorter duration of postoperative disability after EVLA than after surgical treatment (8.6 vs 22.4 days; P < .05).
Kalteis et al274 reported results of a single-center RCT comparing laser ablation (810-nm laser) with stripping of the GSV in 100 patients, including high ligation and phlebectomies performed in both groups. Follow-up was 4 months. Fewer postoperative hematomas occurred in the laser group, but pain and sick leave time after EVLA were longer than after surgery (20 days vs 14 days; P < .05). The study concluded that short-term QOL is equal after both procedures but that longer follow-up is needed to decide which is a better choice for the patients.
Pronk et al275 compared HL/S with EVLA using a 980-nm laser energy; 130 legs in 121 patients were randomized. In this study, more pain was noted after EVLA at days 7, 10, and 14 (P < .01; P < .01; P = .01), more hindrance in mobility at days 7 (P < .01) and 10 (P = .01), and in self-care (P = .03) and daily activities (P = .01) at day 7 compared with HL/S. Recurrence at 1 year was similar in the two groups.
Christenson et al250 recently reported 2-year data of an RCT using 980-nm laser for EVLA and compared results with HL/S in 204 randomized patients. Additional phlebectomies or perforator ligations were also performed in both groups. HL/S limbs had significantly more postoperative hematomas than EVLT limbs. Two GSVs in the EVLT group reopened and five partially reopened, but no open GSVs occurred in HL/S limbs. The authors concluded that long-term follow-up is still needed to justify EVLA vs HL/S.
The Committee noted that four of the seven trials had short follow-up and two trials had funding from a commercial company. Overall, the quality of evidence for safety and early efficacy was high, but evidence for long-term effectiveness in these randomized studies was of low quality. Perioperative pain was higher in the EVLA groups in two studies, but postoperative hematomas were less frequent. As also stated by Thakur at al,276 meaningful comparison across randomized studies of endovenous treatments is difficult because of considerable variations in study populations and outcome measures between trials.
Results of RFA
Nicolini277 reported 3-year results after RFA using the first-generation device in 330 limbs and observed a total occlusion rate of 75%, partial occlusion (<5-cm open segment) in 18%, and incomplete occlusion (>5-cm open segment) in 7%. The total occlusion rate in multiple studies using the first-generation device ranged from 75% to 92%, with a partial occlusion rate of between 7% and 26%.195, 257, 278, 279
Long-term results of the Closure Study Group at 5 years after RFA using the same device were published by Merchant et al254 in 2005. The multicenter prospective registry comprised data from >1200 treated limbs. Occlusion rates at 1, 2, and 5 years were 87.1%, 88.2%, and 87.2%, respectively. Duplex ultrasonography identified 185 limbs that had one of the following modes of anatomic failure:
Type I failure (nonocclusion): The treated vein failed to occlude initially and never occluded during the follow-up (12.4%).
Type II failure (recanalization): The vein occluded after treatment but recanalized, partly or completely, at a later time (69.7%).
Type III failure (groin reflux): The vein trunk occluded, but reflux was detected at the groin region, often involving an accessory vein (17.8%).
Relief from symptoms (pain, fatigue, and edema) was noted in most patients; 70% to 80% of those with anatomic failure remained asymptomatic compared with 85% to 94% of those with anatomic success. Type II and type III failures were risk factors for varicose vein recurrence. In addition, catheter pullback speed and body mass index were the two risk factors associated with anatomic failures.
Early results of the new-generation RF catheter were reported by Proebstle et al.260 A prospective, nonrandomized, multicenter study treated 252 GSVs, with an occlusion rate at 6 months of 99.6%. Return to normal daily activities took place on the same day in more than half the patients, with an average time of 1.0 days (standard deviation, 1.9; median, 0 days; range, 0-17 days).
Serious complications from RFA, such as DVT or thermal skin injury, were not observed in a multicenter, nonrandomized study of RFA using the new-generation RF catheter system.260 Paresthesia occurred in 3.2%, thrombophlebitis in 0.8%, ecchymosis along the course of the GSV in 6.3%, and skin pigmentation in 2%. Lawrence et al262 reported a 2.6% rate of thrombus extension into the femoral veins after 500 RF procedures. No femoral DVT occurred. The rate of proximal thrombus extension was significantly higher in patients with a history of DVT and in those with a GSV diameter of >8 mm (P < .02).
RFA vs high ligation, division, and stripping
Four RCTs compared the results of RFA with those of high ligation, division, and stripping.195, 278, 280, 281, 282 Rautio et al278 from Finland reported results of a single-center randomized trial in 28 patients. Results at 3 years from the same study were reported later by Perälä et al.283 This study found significantly less pain with faster recovery and earlier return to work after RFA than after surgery (6.5 days vs 15.6 days). Perioperative costs were higher for RFA ($794 vs $360), but total societal costs were lower ($1401 vs $1926).
Lurie et al reported results of the Endovenous Radiofrequency Obliteration (Closure procedure) versus Ligation and Stripping (EVOLVeS) study at 4 months195 and at 2 years.256 This international, multicenter, prospective study randomized 85 patients to RFA or HL/S. The RFA group had faster recovery, less postoperative pain, fewer adverse events, and superior QOL scores (P < .05). Clinical and hemodynamic outcomes of RFA were comparable to vein stripping at 2 years. The study found that at 2 years, 91.2% of limbs in the RFA group were free of superficial reflux vs 91.7% in the surgical group (P = NS).
Stötter et al281 reported results of a single-center RCT from Germany comparing RFA with PIN stripping or cryostripping, with 20 patients in each of the 3 groups. At 1 year, RFA showed significantly better results in QOL and pain assessment, and the authors found significant superiority regarding return to routine activity and work.
Hinchcliffe et al282 reported the results of a single-center trial comparing RFA with open surgery in 16 patients with bilateral recurrent GSV varicose veins after previous bilateral high ligation without stripping. One leg chosen at random was treated with RFA, the other with stripping, and both sides had phlebectomies. The time required to perform RFA was significantly shorter (25 vs 40 minutes), and pain and bruise scores were significantly lower for RFA than for stripping. Follow-up was 1 year. The authors concluded that RFA is the technique of choice to treat the incompetent GSV.
|Guideline No.||11. Endovenous thermal ablation||GRADE of recommendation||Level of evidence|
|1. Strong||A. High quality|
|2. Weak||B. Moderate quality|
|C. Low or very low quality|
|11.1||Endovenous thermal ablations (laser and radiofrequency ablations) are safe and effective, and we recommend them for treatment of saphenous incompetence.||1||B|
|11.2||Because of reduced convalescence and less pain and morbidity, we recommend endovenous thermal ablation of the incompetent saphenous vein over open surgery.||1||B|
The Committee noted that these studies had short-term to medium-term follow-up, 1 year in two studies, 2 years in one study, and 3 years in the fourth study. RFA treatment resulted in faster return to work and normal activities, higher patient satisfaction, less pain, and better short-term QOL scores, with high-quality evidence confirming early efficacy and safety. The studies, however, did not report bias protection measures; therefore, the evidence of midterm efficacy is of low quality and no evidence is available on long-term efficacy.
Radiofrequency ablation vs endovenous laser ablation
Four RCTs compared RFA with EVLA.255, 280, 284, 285, 286 Morrison255 reported a single-center randomized trial performed in 50 patients with bilateral GSV reflux. One limb was treated with RFA and the other with EVLA. The saphenous occlusion rate was 80% with RFA and 66% with EVLA (P = NS), and there was no difference in early complication rates.
In the prospective, industry-sponsored, multicenter Radiofrequency Endovenous ClosureFAST versus Laser Ablation for the Treatment of Great Saphenous Reflux: A Multicenter, Single-blinded, Randomized Study (RECOVERY) trial, Almeida et al286 randomized 87 limbs to treatment with RF catheter or 980-nm EVLA. There were no major complications. All scores referable to pain, ecchymosis, and tenderness were statistically lower in the catheter group at 48 hours, 1 week, and 2 weeks. Minor complications were more prevalent in the EVLA group (P = .02). VCSS and QOL measures were lower in the catheter group at all evaluations.286
In a similar trial, Shepherd et al285 randomized 131 patients to treatment with a new-generation RF catheter or 980-nm EVLA. Perioperative pain was less after RFA than after laser, but clinical and QOL improvements were similar in both groups at 6 weeks.
A recent RCT by Gale et al284 compared results of 810-nm wavelength laser with RFA. All veins were closed at 1 week after the procedure. The recanalization rate at 1 year was significantly higher in the RF group (ClosureFAST system) than after laser (11 of 48 vs 2 of 46, P = .002). The mean VCSS score change from baseline to 1 week postprocedure was higher for RFA than EVLA (P = .002), but there was no difference between groups at 1 month (P = .07) and 1 year (P = .9). The authors concluded that both methods of endovenous ablation effectively reduce symptoms of superficial venous insufficiency. EVLA was associated with greater bruising and discomfort in the perioperative period but may provide a more secure long-term closure than RFA.
The Committee noted that the data support less bruising and less pain with the new RF catheter system than with the 980-nm EVLA. However, further trials with higher-wavelength EVLA, as well as with long-term follow-up, are needed before any conclusion on the use of any EVLA vs RFA can be made.
Hemodynamic improvement after saphenous ablations
In a comparative nonrandomized study, Marston et al287 observed both hemodynamic and clinical improvement in patients treated by either RFA or laser. These authors reported significant improvements in venous filling time and in VCSS, with no differences between the groups.
Injection of a chemical into the vein to achieve endoluminal fibrosis and obstruction of the vein has been used for almost a century.288 Sigg et al,289, 290 Fegan et al,291, 292 Tournay,293 and Wallois294 are considered the pioneers of liquid sclerotherapy, whereas Hobbs295 was the first to provide scientific evidence on the clinical outcome after sclerotherapy compared with surgery. Sclerotherapy in some European countries, especially in France, has been a very popular treatment for varicose veins.296, 297, 298, 299 Although liquid sclerotherapy has been used primarily for obliteration of spider veins or telangiectasia (veins ≤3 mm in diameter), interest in the use of sclerotherapy greatly increased when Cabrera et al300 reported in 1995 that foam prepared by mixing a “physiologic gas” with the detergent polidocanol was effective for obstruction of larger veins. Ultrasonographically guided foam sclerotherapy has rapidly spread for treatment of primary and recurrent varicose veins, including the GSV and SSV, perforating veins, and venous malformations.301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 311
The mechanisms of action of sclerosing solutions are the destruction of venous endothelial cells, exposure of subendothelial collagen fibers, and ultimately, the formation of a fibrotic obstruction. The higher the concentration of the solution and the smaller the vein, the greater the endothelial damage. Delivery of the solution as a foam prolongs the time of contact and amplifies the effect of the chemical. In the United States, current FDA-approved agents for sclerotherapy include sodium tetradecyl sulfate (STS), polidocanol, sodium morrhuate, and glycerin, which is usually used with epinephrine. Hypertonic saline, although not approved for sclerotherapy in the United States, has also been used for many years (Table VII).
|Hypertonic saline||Multiple||Osmotic||Off-label usage||+ +||Low risk of allergic reaction; wide availability; rapid response||Off label; painful to inject; hyperpigmentation; necrosis; rapid dilution; not recommended for facial veins|
|Sclerodex (hypertonic saline and dextrose)||Omega Laboratories, Montreal, Quebec||Osmotic||Not approved||+ +||Low risk of allergic reaction; low risk of necrosis; high viscosity||Not FDA-approved; stings when injected; hyperpigmentation|
|Chromex (72% chromated glycerin)||Omega Laboratories, Montreal, Quebec||Alcohol agent||Not approved||+||Low incidence of hyperpigmentation, necrosis, and allergic reaction||Not FDA-approved; weak sclerosing agent; highly viscous and painful to inject; may cause hematuria at high doses|
|Nonchromated glycerin||Compounded at pharmacy||Alcohol agent||Off-label usage||+||Low incidence of hyperpigmentation, necrosis, and allergic reaction||Weak sclerosing agent; typically only used for telangiectasia|
|Scleromate (morrhuate sodium)||Glenwood, LLC, Englewood, New Jersey||Detergent||Approved||+ + +||FDA-approved||High incidence of skin necrosis and anaphylaxis|
|Sotradecol (sodium tetradecyl sulfate)||Bioniche Pharma USA, Lake Forest, Ill (distributed by AngioDynamics Inc, Queensboro, NY)||Detergent||Approved||+ + + + +||FDA-approved; low risk of allergic reaction; potent sclerosant||Potential necrosis with extravasation; telangiectasia matting|
FDA, Food and Drug Administration.
Hypertonic saline is a weak hyperosmolar sclerosing agent that causes dehydration of endothelial cells through osmosis, which leads to endothelial cell death. The usual concentration is used in 23.4% sodium chloride. One formulation is manufactured as Sclerodex (Omega Laboratories Ltd, Montreal, Quebec, Canada). Burning pain is frequent during injection. Extravasation may cause skin ulcers and tissue necrosis, and osmotic agents are used for occlusion of small veins only.
Detergents destroy the endothelium by denaturation of the cell surface proteins. STS (as Sotradecol, Bioniche Pharma USA, Lake Forest, Ill; Fibro-Vein, STD Pharmaceutical Products Ltd, Hereford, UK; Tromboject, Omega Laboratories) is a long-chain fatty alcohol. A critical micellar concentration is needed to cause endothelial cell injury, and repeated treatments are frequently desirable. The solution is safe and painless when injected. When the solution is injected in higher concentration, extravasation may result in tissue necrosis. Hyperpigmentation, matting, and allergic reactions have been described. Foaming of this agent is easy and will result in longer exposure of the agent to the vein wall using a smaller amount of the solution.
Polidocanol (Asclera injection, Bioform Medical Inc, San Mateo, Calif), another detergent, was approved for use in the United States in 2010. This is the most commonly used sclerotherapy agent in the world; it is safe and painless when injected, with a low risk of tissue necrosis when used in a low concentration. It may cause hyperpigmentation, but has a very low rate of allergic or anaphylactic reaction.
Morrhuate sodium (Scleromate, Glenwood, LLC, Englewood, NJ) is a detergent that is used less frequently because of the relatively higher incidence of skin necrosis observed with extravasation and because of the higher risk of anaphylactic reactions.
Alcohol agents are weak sclerosants that cause irreversible endothelial damage by contact. Glycerin is a corrosive agent that destroys the cell surface proteins by affecting chemical bonds. Chromated glycerin is used most frequently as a solution of glycerin, sterile water, and benzyl alcohol (Chromex, Omega Laboratory). It is not approved in the United States. It is usually mixed with 1% lidocaine and epinephrine. Chromated glycerin is safe and rarely leads to tissue necrosis, hyperpigmentation, or allergy. Suitable for treatment of small veins or telangiectasia, it may cause hematuria when used in a higher concentration.
The sclerosing chemicals need to be diluted before use, and the concentration of the solution should be the lowest when used for treatment of very small diameter veins, such as telangiectasia. Recommended concentrations of STS and polidocanol are listed in Table VIII.
|Varicose veins <8 mm||0.5%-3.0%||1%-3%a|
|Reticular veins 2-4 mm||0.25%-0.5%||0.6%-1.0%|
|Telangiectasias 0.1-2.0 mm||0.125%-0.25%||0.25%-0.6%|
STS, Sodium tetradecyl sulfate.
Liquid sclerotherapy is performed using small tuberculin syringes and a 30- or 32-gauge needle. Treatment is usually started with larger varicose veins and ends with reticular veins and telangiectasia. The proximal part of the limb is treated first and the distal part second. Using loupes for magnification and transillumination (Veinlite, TransLite, Sugar Land, Tex; VeinViewer, Luminetx, Memphis, Tenn) helps intraluminal injection and avoids extravasation of the drug. The injection maximum of 1.0 mL of the chemical to one site is recommended, with not more than 10 to 20 injections performed per session. Severe pain during injection may signal extravasation, and further injection should be avoided.29 Gauze pads are placed on the injection sites, and the patient is instructed to wear 30 to 40 mm Hg graduated compression stockings for 1 to 3 days after treatment of telangiectasia and reticular veins and at least 1 week after treatment of varicose and perforating veins.
Foam sclerotherapy of the saphenous vein is the least invasive of the endovenous ablation techniques. The European Consensus Meetings on Foam Sclerotherapy308, 309 reported that foam was an effective, safe, and minimally invasive endovenous treatment for varicose veins with a low rate of complications.
The most popular technique used today was developed by Tessari et al312 using a three-way stopcock connected with two syringes. Experts recommend a ratio of 1 part solution of STS or polidocanol to 4 or 5 parts of air.313 Mixing the drug with air using the two syringes and pushing the mixture from one syringe into the other 20 times results in an approximate bubble size of <100 μm.
Coleridge-Smith306 advises to cannulate the veins in supine patients and then elevate the limb 30° to inject the foam. Ultrasonography is used to monitor the movement of foam in the veins. The saphenous trunk is injected first, followed by varicose and perforating veins if indicated. A maximum of 20 mL of foam is injected during one session. Bergan313 recommends elevation of the limb for 10 to 15 minutes after injection to minimize the volume of foam that gets into the systemic circulation. The procedure is completed by placing a short stretch bandage or 30 to 40 mm Hg graduated compression stockings (or both) on the limb. Although most authors recommend 1 to 2 weeks of compression,313, 314 a recent RCT found no advantage to compression bandaging for >24 hours when thromboembolus-deterrent stockings were worn for the remainder of 14 days.315
Severe complications after sclerotherapy, such as death, anaphylactic reaction, pulmonary emboli, stroke, and large areas of skin necrosis, are very rare (<0.01%).316 Severe but rare complications also include thrombophlebitis, nerve damage (saphenous, sural), DVT, or inadvertent arterial injection of the solution.317, 318 Transient neurologic adverse effects such as visual disturbance, migraine-like headache, or confusional state may occur and are more frequent in patients with a patent foramen ovale.319
Most complications are minor, and include matting, pigmentation, pain, allergy, and skin urticaria. The higher the concentration of the agent, the higher the likelihood of hyperpigmentation, a minor complication that can be observed in up to 30% of the cases.320 Between 70% and 95% of the pigmentations, however, resolve by 1 year after therapy.317
The incidence of major neurologic events after foam injection is rare; instances of stroke were reported by Bush et al321 and others.319, 322, 323 Immediate treatment with 100% oxygen and possibly hyperbaric oxygen therapy should be considered. Factors implicated in the risk of stroke after foam sclerotherapy include the use of air instead of carbon dioxide to prepare the foam, large bubble size, a patent foramen ovale, failure to elevate the limb after treatment, prolonged immobility after therapy, and an excessive amount of foam used during one session.319, 322, 323, 324 Standardization of the bubble size using commercially prepared microfoam and the replacement of air with carbon dioxide in the solution may decrease the risk of neurologic complications.325
A recent study Regan et al326 proposed that the composition and properties of the foam, including bubble size and gaseous components, may indeed contribute to the potential for microcirculatory obstruction and cerebral ischemia. The authors tested an ultralow nitrogen polidocanol endovenous microfoam with controlled bubble size and density and found that patients treated with foamed liquid sclerosants are commonly exposed to cerebrovascular gas bubbles. In a series of 60 high-risk patients with middle cerebral artery bubble emboli during or after treatment, however, there was no evidence of cerebral or cardiac microinfarction.
Although rare, allergic reactions and anaphylaxis after injection of a sclerosing solution can occur, and it is essential to have an emergency protocol, resuscitation equipment, oxygen, and drugs (diphenhydramine, epinephrine, cimetidine, steroids) available to prevent a major catastrophe.
Guex et al296 reported early and midterm complications in a prospective multicenter registry that included 12,173 sclerotherapy sessions, consisting of 5434 with liquid, 6395 with foam, and 344 using both. Ultrasonographic guidance was used in 4088 sessions (33.9%), and 49 incidents or accidents (0.4%) occurred, of which 12 were with liquid and 37 with foam. There were 20 cases of visual disturbances, in 19 cases, foam or air block was used; all resolved shortly, without any after effects. A femoral vein thrombosis was the only severe adverse event in this study, which also demonstrated that sclerotherapy is a safe technique.
A systematic review of foam sclerotherapy also found a low rate of major complications.10 In >9000 patients studied, the median rates of serious adverse events, including PE and DVT, were rare, <1%. The median rate of visual disturbance was 1.4%, headache occurred in 4.2%, thrombophlebitis in 4.7%, matting, skin staining, or pigmentation in 17.8%, and pain at the site of injection in 25.6%.
Morrison et al327 evaluated the safety of carbon dioxide in patients undergoing 1% polidocanol foam sclerotherapy and compared them with a historical control of patients who had air mixed with the sclerosing agent. The carbon dioxide–based foam group had 128 patients (115 women and 13 men). Visual disturbances were experienced by 3.1% (4 of 128) of the carbon dioxide group and in 8.2% (4 of 49) of the air group (P = .15). The incidence of chest tightness (3.1% vs 18%), dry cough (1.6% vs 16%), and dizziness (3.1% vs 12%) was significantly lower in the carbon dioxide group compared with the air group (P < .02). Nausea occurred in 2% of the carbon dioxide foam group and in 4% of the air foam group (P = .53). Overall, the proportion of patients describing adverse effects decreased from 39% (19 to 49) to 11% (14 to 128) as carbon dioxide replaced air for foam preparation (P < .001). The authors concluded that adverse effects decreased significantly if carbon dioxide rather than air was used to make the sclerosing foam for chemical ablation of superficial veins of the lower extremity.
Short-term and midterm results of liquid sclerotherapy have been good for both reticular and varicose veins, but durable success depends largely on the presence or absence of axial reflux. Those with untreated incompetent saphenous veins have the highest rate of recurrence.295, 328 Kern et al329 reported results of liquid sclerotherapy of telangiectasia and reticular veins in 96 patients. Those who wore elastic stockings for 3 weeks after treatment had an early success rate of 76%. Goldman330 published results of a prospective trial comparing the efficacy of two liquid sclerosants, polidocanol and STS, and both were used to treat varicose and telangiectatic veins. All patients had an average of 70% improvement, and 70% to 72% were satisfied in all vein categories treated with either solution.
Liquid sclerotherapy does poorly for treatment of the incompetent GSV, but results of foam sclerotherapy are much more encouraging. Rabe et al331 performed a multicenter RCT to evaluate the efficacy and safety of GSV sclerotherapy using standardized polidocanol foam. The 3% foam was more efficient than and equally as safe as the 3% liquid for the treatment of the incompetent GSV.
In a prospective comparative study, Yamaki et al332 compared results of duplex-guided foam sclerotherapy and duplex-guided liquid sclerotherapy in 77 patients. Duplex scanning at 1 year demonstrated complete occlusion in the GSV for duplex-guided foam sclerotherapy in 25 limbs (67.6%), which was a significantly higher rate than that for duplex-guided liquid sclerotherapy in 7 limbs (17.5%; P < .0001). Recurrent varicose veins were found in 3 patients (8.1%) in the duplex-guided foam sclerotherapy group and in 10 (25%) in the duplex-guided liquid sclerotherapy group at 1 year (P = .048). Cabrera et al333 reported an 80% occlusion rate at 4 to 6 years when they used microfoam to treat incompetent GSV in 415 limbs.
In 808 patients with 1411 affected limbs, Coleridge Smith306 used 1% polidocanol, 1% STS, and 3% STS in the form of foam to treat incompetent saphenous trunks, and 459 limbs were available for duplex imaging at a follow-up of ≥6 months. The GSV remained obliterated in 88% of limbs and the SSV in 82%.
A Cochrane review on sclerotherapy published by Tisi et al40 in 2006 concluded that evidence supports the current place of sclerotherapy in modern clinical practice, which is usually limited to treatment of recurrent varicose veins after surgery and thread veins.
The efficacy of foam sclerotherapy on QOL was recently demonstrated in a single-center cohort study by Darvall et al.334 These author found that ultrasound-guided foam sclerotherapy for great and small saphenous varicose veins leads to significant improvements in generic and disease-specific health related QOL for at least 12 months after treatment.
Surgery vs sclerotherapy
A Cochrane review in 2004 examined results of surgery vs sclerotherapy for the treatment of varicose veins. Rigby et al335 reviewed 2306 references that included 61 comparative studies and 9 randomized trials. The study observed a trend that sclerotherapy was better at 1 year and surgery had a better outcome at 3 to 5 years. The meta-analysis concluded, however, that there was insufficient evidence to preferentially recommend sclerotherapy for treatment of varicose veins over surgical treatment.
Wright et al325 reported the effect of polidocanol microfoam and compared its use with surgery or sclerotherapy in the management of varicose veins. This European RCT found that 1% microfoam was inferior to surgery but superior to conventional sclerotherapy. Foam resulted in less pain and earlier returns to work than surgery.
|Guideline No.||12. Sclerotherapy of varicose veins||GRADE of recommendation||Level of evidence|
|1. Strong||A. High quality|
|2. Weak||B. Moderate quality|
|C. Low or very low quality|
|12.1||We recommend liquid or foam sclerotherapy for telangiectasia, reticular veins, and varicose veins.||1||B|
|12.2||For treatment of the incompetent saphenous vein, we recommend endovenous thermal ablation over chemical ablation with foam.||1||B|
In a systematic review on foam sclerotherapy, Jia et al10 analyzed data of 69 studies, including 10 RCTs. All patients underwent foam sclerotherapy for varicose veins, most frequently with use of polidocanol to ablate the GSV or SSV. The median rate of complete occlusion of treated veins was 87%. Meta-analysis for complete occlusion suggested that foam sclerotherapy was less effective than surgery (RR, 0.86; 95% CI, 0.67-1.10) but more effective than liquid sclerotherapy (RR, 1.39; 95% CI, 0.91-2.11), although there was substantial heterogeneity between studies. The authors concluded that there is currently insufficient evidence to allow a meaningful comparison of the effectiveness of this treatment with that of other minimally invasive therapies or surgery.
Surgery vs endothermal ablations vs foam sclerotherapy
A systematic review and meta-analysis of RFA, EVLA, and foam sclerotherapy for primary varicose veins was reported by Luebke and Brunkwall9 in 2008. Results were compared with those achieved with conventional ligation and vein stripping. This study included 29 EVLA studies, 32 RFA studies, and 22 foam sclerotherapy trials. RFA was inferior to EVLA and foam sclerotherapy in saphenous occlusion rate, phlebitis, DVT, and paresthesias. EVLA had the highest occlusion rate and least recurrence compared with RFA and foam. Foam sclerotherapy of varicose veins was associated with a higher recurrence rate in patients with saphenofemoral incompetence compared with the rates after EVLA or RFA. This study concluded that EVLA, RFA, and foam sclerotherapy seem to be safe and effective, with good short-term and midterm results, but large, high-quality, prospective RCTs comparing endovenous techniques and endovenous techniques with surgery are needed before considering endovenous techniques as the standard treatment of varicose veins.
In a subsequent meta-analysis of EVLA results, van den Bos et al248 compared RFA, foam sclerotherapy, and HL/S. They analyzed results of 64 clinical trials that included treatment of 12,320 limbs with an average follow-up of 32.2 months. The estimated pooled success rate at 3 years was highest after EVLA (94%), followed by RFA (84%), HL/S (78%), and foam sclerotherapy (77%). EVLA was significantly superior to other treatment modalities in abolition of the saphenous reflux. Foam therapy and RFA were equally effective as surgery. The meta-analysis concluded that endovenous thermal ablations or foam sclerotherapy is at least as effective as surgery for treatment of varicose veins.
Another large meta-analysis of the SVS and AVF on varicose vein treatment is reported by Murad et al12 in this issue the Journal of Vascular Surgery. The authors examined data from 8207 patients reported in 38 comparative studies that included 29 RCTs. Each study included two or more treatments, such as surgery, laser ablation, RFA, and liquid or foam sclerotherapy. The meta-analysis found that surgery was associated only with a nonsignificant reduction in varicose vein recurrence, compared with sclerotherapy, laser therapy, or RFA. Studies of laser therapy, RFA, and foam sclerotherapy, however, demonstrated short-term effectiveness and safety. The authors concluded that low-quality evidence supports long-term safety and efficacy of surgery for the treatment of varicose veins and that short-term studies support the efficacy of less invasive treatments, which are associated with less early disability and pain.
Results of these meta-analyses and data of several RCTs and single-treatment cohort studies as well as a recent review336 and an editorial337 now question the continuing role of open surgery with HL/S as the gold standard for treatment of varicose veins. On the basis of the available data, the Joint Committee of the SVS/AVF agreed that because of the minimally invasive nature and similar or better early-term and equivalent midterm results, endovenous thermal ablations should be recommended over open surgery as the first line of treatment of varicose veins associated with axial reflux. The Committee also recognized that results of foam therapy have improved but that they are not yet equivalent to those obtained after endovascular or open venous surgery. The Committee recommended that there was an urgent need for well-performed, large RCTs comparing adverse effects and long-term saphenous occlusion rates of surgery, endovenous thermal ablations, and foam sclerotherapy. These studies should include detailed analyses of safety and costs and should also evaluate the QOL of patients who undergo treatment using any of these procedures.
Special venous problems
An association between incompetent perforating veins and venous ulcers was established more than a century ago by Gay,338 and surgical perforator interruption was recommended to treat venous ulcers by Homans,339 Linton,340 Cockett et al,341, 342 and Dodd.343 Hauer344 introduced SEPS in 1985, O'Donnell345 was the first to use laparoscopic instrumentation, while the Mayo Clinic team346 and Conrad347 improved the technique and added carbon dioxide insufflation to the procedure. Between 1992 and 2008, SEPS became the technique of choice for perforator ablation, primarily because of the reduced rate of wound complications.62, 348, 349, 350
However, the emergence of ultrasonographically guided thermal ablations and sclerotherapy in recent years has transformed the techniques of perforator ablation.351, 352, 353, 354, 355, 356 Advantages of percutaneous ablation of perforators (PAPS) include the low risk of a minimally invasive procedure that is easily repeatable and can be performed under local anesthesia in an office setting.357
Techniques of perforator ablation
Subfascial endoscopic perforator vein surgery
SEPS is performed under general or epidural anesthesia. The single or the double endoscopic port techniques can be used for dissection and division of medial calf perforators.62, 348, 349, 350 Most authors use balloon dissection and carbon dioxide insufflation with a pressure of 30 mm Hg and a pneumatic thigh tourniquet inflated to 300 mm Hg to avoid any bleeding in the surgical field.358 Division of the fascia of the deep posterior compartment with a paratibial fasciotomy is required to identify all important medial perforating veins. Occlusion of the perforators can be done with endoscopic clips, although most surgeons use an ultrasonic harmonic scalpel for division and transection of the perforators. The wounds are closed, the tourniquet is deflated, and the extremity is wrapped with an elastic bandage. The operation is an outpatient procedure, and patients are encouraged to ambulate 3 hours after the operation.
Percutaneous ablation of perforators
PAPS is performed under ultrasound guidance, with direct needle puncture of the perforating vein. Local anesthesia is used, with the patient in the reversed Trendelenburg position to allow for full venous distention. The tip of the needle should be at or just below the fascia in the vein to minimize deep vessel and nerve injury.
The ClosureRFS Stylet is a new intravascular ablation device (VNUS Medical Technologies, San Jose, Calif) available for RFA of the perforating vein. Intraluminal placement of the RF stylet is confirmed by ultrasonography and also by measuring impedance: values between 150 and 350 ohms indicate the intravascular location of the tip of the probe. Local anesthesia is used to infiltrate the tissues around the stylet before treatment, and the patient is then placed in the Trendelenburg position. Treatment is performed with a target temperature of 85°C. All four quadrants of the vein wall are treated for 1 minute each. The catheter is then withdrawn 1 or 2 mm, and a second treatment is performed. The treatment is finished with applying compression to the region of the treated perforating vein.
Endovenous laser ablation
For laser treatment of perforating veins, a 16-gauge angiocatheter (for a 600-μm laser fiber) or a 21-gauge micropuncture needle (for a 400-μm laser fiber) can be used.357 Intraluminal placement of the access catheter is confirmed by ultrasonography and by aspiration of blood at or just below the fascial level. Once the fiber is positioned in the vein at or just below the level of the fascia, local anesthesia is infiltrated, and various methods of energy application are used. Elias357 recommends a pulsed technique with the generator set for 15 watts and a 4-second pulse interval. Each segment of vein is treated twice, thus giving 120 J to each segment. Three segments are usually treated. Proebstle and Herdemann359 also treat the perforating veins at three locations, each segment receiving between 60 and 100 J. The rest of the procedure is similar to RFA.
For chemical ablation of perforating veins, a 25-, 27-, or 30-gauge needle can be used for cannulation. If the anatomy allows, a wire may be placed into the deep system for better control of the access. Ultrasonographically guided sclerotherapy has been reported using morrhuate sodium,351 although most experts recommend STS or polidocanol foam. Care should be taken to avoid injection of the agent into the accompanying artery. During injection of 0.5 to 1 mL of the sclerosant, the patient's leg is elevated to avoid flow into the deep system. After treatment, compression is applied over the treated perforators.357
SEPS is safe and complications are rare. Death or PE has not been reported, and the North American SEPS registry had no patient with DVT ≤30 days of the procedure. Wound infection and saphenous neuralgia occurred in 6% each. In an RCT, Pierik et al360 observed a significantly higher rate of wound complications after open perforator ligation, using a modified Linton procedure, than after endoscopic perforator ligation (53% vs 0%; P < .001).
Complications after PAPS are rare, and in a review of published series, O'Donnell356 found evidence of tibial vein DVT in three series and foot drop and skin burn in one each. Masuda et al351 treated 80 limbs with sclerotherapy of the perforating veins. There were no cases of DVT involving the deep vein adjacent to the perforator injected. One patient had skin complications with skin necrosis.
Results of perforator ablation
Subfascial endoscopic perforator vein surgery
Most series of SEPS were performed in patients with advanced disease (class C3-C6, mostly C5 and C6), and perforator interruption was performed with ablation of the incompetent superficial system. Therefore, benefit directly attributable to perforator interruption is not well known.
Simple varicose veins (CEAP class C2)
In an RCT, Kianifard et al361 analyzed the benefits of adding SEPS to saphenofemoral ligation and stripping of the GSV in patients with class C2 disease. The study allocated 38 to the SEPS group and 34 to the no-SEPS group. The two groups were similar with respect to pain, mobility, varicose vein recurrence, and QOL scores during the 1-year follow-up. A significantly higher proportion of patients in the no-SEPS group had incompetent perforating veins on duplex imaging at 1 year (25 of 32 vs 12 of 38; P < .001). This RCT concluded that at 1 year in class C2 patients, no additional clinical benefit could be observed when SEPS was added to HL/S.
This finding was supported by a prospective study by van Neer et al362 in 62 limbs with class C2 disease, who had varicose veins distal to the knee and underwent HL/S of the GSV to the level of the knee. Clinical and ultrasonographic residual varicose veins at 6 months were not significantly related to the presence of preoperative incompetent perforating veins.
Chronic venous insufficiency (CEAP class C3-C6)
The North American SEPS registry reported the results of SEPS performed in 17 U.S. centers on 155 limbs, 85% with class C5 and C6 disease. Ulcer healing at 1 year was 88%, with the median time to ulcer healing of 54 days.62, 350 Ulcer recurrence was 16% at 1 year and 28% at 2 years. This registry contained data on 27 patients with class C6 disease who underwent SEPS alone. The ulcer recurrence rate (35%) in the SEPS-only group at 2 years was not significantly higher than recurrence in patients who underwent SEPS and superficial ablation alone (25%).
Nelzen363 prospectively collected data from 149 SEPS procedures in 138 patients, of whom 89% underwent saphenous surgery as well. During a median follow-up of 32 months, 32 of 36 ulcers healed, more than half (19 of 36) ≤1 month. Three ulcers recurred, one of which subsequently healed during follow-up. In a subsequent series from the same group, 97 limbs with class C5 and C6 disease were treated with SEPS. Superficial ablation was also performed in 87%. All patients were monitored for at least 5 years. Ulcers healed in 87%, and the 3- and 5-year recurrence rates were 8% and 18%. Long-term data in 51 limbs with class C5 and C6 disease were published by Iafrati et al,364 who performed SEPS alone in 23 limbs and SEPS with stripping in 28. The ulcers healed rapidly, and the 5-year ulcer recurrence rate was low (13%).
Post-thrombotic patients do worse than those with primary incompetence. In the Mayo Clinic series, 5-year ulcer recurrence was 56% in post-thrombotic patients vs 15% in patients with primary valvular incompetence (P < .05).365, 366 Post-thrombotic patients with significant deep venous disease still gained some benefit, as measured by improved VCSS as well as an apparent ease in treating the smaller and more superficial ulcers compared with their preoperative state.
A single-center cohort study by Bianchi et al367 observed ulcer healing in 91% (53 of 58) of limbs with C6 disease at a mean of 2.9 months (range, 13 days-17 months) after SEPS and saphenous stripping. Ulcer recurrence at 30 months was 6%. Ulcer recurrence at 4 years was as high as 31% in the ESCHAR study when compression treatment was combined with surgical ablation of the superficial reflux, but no perforator interruption was performed.157
In a large, retrospective, multicenter cohort study, Tawes et al368 monitored 832 patients with CEAP clinical class C4 to C6 for 9 years after SEPS. Only 55% of the patients underwent HL/S in addition to SEPS. In this study, 92% of ulcers healed with only 4% recurrences. There was a 3% nonfatal complication rate, and significant improvement was documented in venous hemodynamics in a subset of patients.
In a systematic review, Tenbrook et al38 reported results of the SEPS procedure performed with or without superficial ablation on 1140 limbs in 1 RCT and 19 case series. Ulcers in 88% of limbs healed and recurred in 13%, at a mean time of 21 months. Risk factors for nonhealing and recurrence included postoperative incompetent perforating veins, pathophysiologic obstruction, previous DVT, and ulcer diameter >2 cm. The authors concluded that surgical treatment, including SEPS, with or without saphenous ablation, is recommended for patients with venous ulcers, but RCTs are needed to discern the contributions of compression therapy, superficial venous surgery, and SEPS in patients with advanced CVI.
The Dutch SEPS RCT59 compared results of surgical treatment in 103 patients (SEPS, with or without superficial reflux ablation) with medical treatment in 97 patients with venous ulcers. The rate of ulcer healing at 29 months in the surgical group was 83%, with recurrence of 22%. In the conservative treatment group, ulcers healed in 73% and recurred in 23% (P = NS). The study concluded that SEPS, with or without superficial ablation, failed to improve healing or recurrence over best medical treatment. Ulcer size and duration were independent factors adversely affecting ulcer healing and recurrence. In a subgroup analysis, medial ulcers, recurrent ulcers, or SEPS done in centers of excellence did show significant benefit. In this study, 86% of the patients had medial or recurrent ulcers. On the basis of these data and results of a previous RCT by Stacey et al,369 the evidence summary of O'Donnell19 concluded that further properly conducted RCTs are needed to provide high-quality evidence of efficacy of perforator interruptions in patients with leg ulcers. Previous AVF recommendations agreed with this statement.370
A recent meta-analysis of SEPS by Luebke and Brunkwall32 reviewed data of studies published between 1985 and 2008 and concluded that SEPS, used as part of a treatment regimen for severe CVI, benefits most patients in the short-term regarding ulcer healing and the prevention of ulcer recurrence. SEPS is safe and has less early postoperative complications compared with the classic Linton procedure. Luebke and Brunkwall also concluded that further prospective RCTs are needed to define the long-term benefits of SEPS.
Hemodynamic improvement after SEPS with superficial ablation was confirmed by Padberg et al,127 who performed superficial and perforator ablations in 11 limbs and used air plethysmography, foot volumetry, and duplex scanning to assess results. At a median follow-up of 66 months, expulsion fraction and half-refilling time had both improved significantly in patients, with no ulcer recurrence. Rhodes et al,95 from Mayo Clinic, used strain-gauge plethysmography to quantitate calf muscle pump function and venous incompetence before and after SEPS. Significant improvement was noted in both calf muscle pump function and venous incompetence in 31 limbs studied ≤6 months after SEPS. Saphenous stripping was done in addition to SEPS in 24 of the 31 limbs. Although the seven limbs undergoing SEPS alone had significant clinical benefits, the hemodynamic improvements were not statistically significant. It is important to note also that Akesson et al371 failed to show additional benefit in ambulatory venous pressure, when perforator interruption was performed after saphenous vein ablation.
|Guideline No.||13. Treatment of perforating veins||GRADE of recommendation||Level of evidence|
|1. Strong||A. High quality|
|2. Weak||B. Moderate quality|
|C. Low or very low quality|
|13.1||We recommend against selective treatment of incompetent perforating veins in patients with simple varicose veins (CEAP class C2).||1||B|
|13.2||We suggest treatment of “pathologic” perforating veins that includes those with outward flow of ≥500-ms duration, with a diameter of ≥3.5 mm, located beneath healed or open venous ulcer (class C5-C6).||2||B|
|13.3||For treatment of “pathologic” perforating veins, we suggest subfascial endoscopic perforating vein surgery, ultrasonographically guided sclerotherapy, or thermal ablations.||2||C|
Percutaneous ablation of perforators
PAPS is a new technique, and most publications had a small number of patients with short follow-up, who were treated frequently for mild disease (CEAP class C2-C3).357 Most data provided are on safety and surrogate end points such as perforating vein occlusions but less so on clinical and functional end points. A systematic review of five recently published cohort studies and seven unpublished case series by O'Donnell356 found a mean occlusion rate of 80% and a mean follow-up of <2 months.
Ultrasonographically guided sclerotherapy is gaining rapid acceptance because perforating veins can be accessed easily with a small needle without much pain to the patient. Masuda et al351 reported clinical results with ultrasonographically guided sclerotherapy using morrhuate sodium in 80 limbs with predominantly perforator incompetence alone. The authors noticed a significant improvement in VCSS, and ulcers rapidly healed in 86.5%, with a mean time to heal of 36 days. The ulcer recurrence rate was 32% at a mean of 20 months despite low compliance (15%) with compression hose. New and recurrent perforators were identified in 33% of limbs, and ulcer recurrence was statistically associated with perforator recurrence as well as presence of postthrombotic syndrome.
Current data do not support adding perforator ablation to ablation of the superficial system in patients with simple varicose veins,361, 362 and the Committee recommends against treatment of perforators in patients with CEAP class C2 disease (GRADE 1B). In patients with advanced CVI, current data provide moderate evidence that large (≥3.5 mm), high-volume, incompetent “pathologic” perforators (reflux ≥500 ms), located in the affected area of the limb with outward flow on duplex scanning in patients with class C5 or C6 disease, can be treated by experienced interventionists, unless the deep veins are obstructed (GRADE 2B).22, 56, 87 Clinical data on the efficacy of perforator ablations were obtained primarily by using the SEPS procedure, but ultrasonographically guided sclerotherapy or thermal ablations, when performed with similar low complication rates, can be suggested as alternative therapy for perforator treatment (GRADE 2C).
Pelvic varicosity and pelvic congestion syndrome
Valvular incompetence and retrograde flow to the ovarian veins and/or the internal iliac vein and its tributaries may give rise to pelvic congestion syndrome and pelvic varicosities, which may occur alone or together. Pelvic congestion syndrome is associated with symptoms of pelvic pain or heaviness, dyspareunia, and dysuria. Varicose veins in the vulvar and perivulvar area are most often secondary to previous pregnancy and are often associated with perimenstrual symptoms.
The appearance of varices in the region of the pubis, labia, perineum, or buttocks suggests a pelvic source of reflux. Several noninvasive diagnostic tests are available, including lower extremity, transabdominal, and transvaginal ultrasonography as well as CT and MR venography.372 All have been reported to be useful in documenting pelvic venous reflux, although the selection of the most appropriate test largely depends on local institutional expertise. An ovarian vein diameter of >6 mm on ultrasonography has been reported to have a 96% positive-predictive value for pelvic varices.373 MR and CT venography criteria for pelvic venous varices include four or more tortuous parauterine veins, parauterine veins >4 mm in diameter, and an ovarian vein diameter >8 mm.374
|Guideline No.||14. Treatment of pelvic varicose veins||GRADE of recommendation||Level of evidence|
|1. Strong||A. High quality|
|2. Weak||B. Moderate quality|
|C. Low or very low quality|
|14.1||We recommend noninvasive imaging with transabdominal and/or transvaginal ultrasonography, computed tomography or magnetic resonance venography in selected patients with symptoms of pelvic congestion syndrome or symptomatic varices in the distribution of the pubis, labia, perineum, or buttocks.||1||C|
|14.2||We recommend retrograde ovarian and internal iliac venography in patients with pelvic venous disease, confirmed or suspected by noninvasive imaging studies, in whom intervention is planned.||1||C|
|14.3||We suggest treatment of pelvic congestion syndrome and pelvic varices with coil embolization, plugs, or transcatheter sclerotherapy, used alone or together.||2||B|
|14.4||If less invasive treatment is not available or has failed, we suggest surgical ligation and excision of ovarian veins to treat reflux.||2||B|
Retrograde ovarian and internal iliac venography is the test of choice for the diagnosis of pelvic venous disorders, although it is most often reserved for patients in whom intervention is planned. Venographic criteria for pelvic congestion syndrome include one or more of the following: (1) an ovarian vein diameter of ≥6 mm, (2) contrast retention for ≥20 seconds, (3) congestion of the pelvic venous plexus and/or opacification of the ipsilateral (or contralateral) internal iliac vein, or (4) filling of vulvovaginal and thigh varicosities.375
Various nonsurgical and surgical approaches are available to treat pelvic congestion syndrome. Pharmacologic agents to suppress ovarian function, such as medroxyprogesterone or gonadotropin-releasing hormone, may offer short-term pain relief, but their long-term effectiveness has not been proven. Surgical approaches, including hysterectomy with unilateral or bilateral oophorectomy and ovarian vein ligation and excision, with interruption of as many collateral veins as possible, have been suggested for patients unresponsive to medical therapy.373
Percutaneous transcatheter embolization of refluxing ovarian and internal iliac vein tributaries with coils, plugs, or sclerotherapy, usually as combination treatment, has become the standard approach for management of both pelvic congestion syndrome and varices arising from a pelvic source.
Transcatheter therapy has been reported to improve symptoms in 50% to 80% of patients. Chung and Huh374 randomized 106 premenopausal women with chronic pelvic pain unresponsive to medical treatment to one of three treatment regimens: (1) ovarian vein embolization, (2) laparoscopic hysterectomy, bilateral salpingo-oophorectomy, and hormone replacement, or (3) laparoscopic hysterectomy and unilateral oophorectomy. Mean pain scores as assessed on a 10-point visual analog scale were significantly improved among those undergoing ovarian vein embolization or bilateral oophorectomy, but not among those undergoing unilateral oophorectomy. Pain reduction at 12 months was greatest in those undergoing embolotherapy.
The revolution in endovascular technology has transformed the evaluation and treatment of venous disease during the past decade. To keep up with the rapidly changing technology, in this document the Venous Guideline Committee of the SVS and the AVF provides evidence-based guidelines for the management of varicose veins and associated CVDs in 2011. These guidelines are essential to the clinical practice using evidence-based medicine and play a major role—but not the only role—in determining the best care for patients with varicose veins and more advanced forms of CVD. The scientific evidence presented in this document must be combined with the physician's clinical experience and the patient's preference to select the best diagnostic tests and the best treatment option for each individual patient.