Primary Venous Insufficiency Research Articles

Perforator Management with Endovenous Laser Ablation and its Role in the Treatment of Resistant Venous Ulcers

Introduction: Varicose vein disease can present in different patterns with pathological components being restricted to Great Saphenous Vein (GSV), Short Saphenous Vein (SSV), perforators or any combination of these. The role of perforators has been debated in the past especially for non-healing ulcers. Different methods of treatment have been used in the past for treatment of perforators with Endovenous Laser Ablation Therapy (EVLT) emerging as a promising modality. Aim: To calculate the rate of perforator closure post-EVLT and to study the patient’s progress using Revised Venous Clinical Severity Score (RVCSS) post-treatment of incompetent perforators in resistant cases of varicose vein. Materials and Methods: This prospective cohort longitudinal study comprised of 55 patients suffering from treatment resistant venous ulcer over a minimal period of three months with incompetent perforators even after the treatment of primary venous insufficiency. They were taken up for EVLT. The patients were followed-up for three months for healing of ulcer and improvement of symptoms using the RVCSS. Statistical analysis was done using Statistical Package For Social Science (SPSS version 24.0) and paired t-test was used to calculate the p-value at three weeks and three months. Results: Out of 55 patients, 45 consented for active perforator management. In that group of 45 patients, 75 incompetent perforators were identified and managed by EVLT. Rest 10 patients opted for the conservative management. The closure of perforator was found in 100% perforators with 95% of these patients showing healing of ulcers on follow-up. With treatment of incompetent perforators, there was a significant reduction in RVCSS from 9.44 to 4.16 when patients were followed-up after three months. Conclusion: The EVLT is an effective method in closure of the incompetent perforators in lower limb. The treatment of incompetent perforators is must, especially in cases of intractable/residual varicose vein disease.

Accuracy of contralateral Villalta score to assess for pre‐existing chronic venous insufficiency in patients with unilateral deep vein thrombosis

BackgroundInternational guidelines recommend using the Villalta score (VS) to diagnose the postthrombotic syndrome (PTS). However, a high proportion of PTS detected with VS could just reflect the presence of preexisting primary venous insufficiency (PVI). Furthermore, it is unclear whether the contralateral VS (cl‐VS) can be used to assess for preexisting PVI. ObjectivesTo estimate whether cl‐VS can be used to assess for preexisting PVI, and to assess the proportion of PTS that could be attributable to preexisting PVI. MethodsSubanalysis of the SOX multicenter randomized trial focusing on patients with a first unilateral proximal deep vein thrombosis (DVT) followed for up to 2 years. PVI was defined as a baseline cl‐VS > 4, and PTS as VS > 4 in the leg ipsilateral to DVT starting 6 months after DVT. ResultsAmong 680 patients, mean cl‐VS remained stable over time: 1.23 (standard deviation [SD] ±2.49) at baseline and 1.17 (±2.20), 1.59 (±2.81), 1.54 (±2.50), 1.65 (±2.82), and 1.55 (±2.63) at the 1‐, 6‐, 12‐, 18‐, and 24‐month visits, respectively. Baseline cl‐VS and ipsilateral VS measured during follow‐up were mildly correlated (Pearson correlation = 0.13‐0.25). This association disappeared after subtracting the cl‐VS measured at the same visit from the ipsilateral VS. Overall, 48.8% of patients developed PTS of whom 12.8% had baseline cl‐VS > 4. ConclusionIn our study of patients with a first unilateral proximal DVT, the proportion of patients with PTS who had a cl‐VS > 4 is modest. However, cl‐VS appears to be stable over time. Its assessment could constitute a simple way of documenting preexisting PVI and help to classify patients as having PTS.

Latent class analysis for exploring distribution patterns of primary superficial venous insufficiency.

This study aims to identify specific segmental distribution patterns of lower extremity chronic venous disease based on latent class analysis of Doppler mapping results. A total of 1,871 lower extremities of 1,218 treatment-naïve patients (536 males, 682 females; mean age 45.4 years; range, 21 to 87 years) with chronic venous disease referred for Doppler examination between September 2009 and August 2018 were included. Refluxing superficial venous segments of the lower extremities were mapped and recorded in database in 10 distinct anatomic locations as follows: saphenofemoral junction and proximal greater saphenous vein, mid and distal thigh greater saphenous vein, anterior and posterior accessory saphenous veins, proximal and distal calf greater saphenous vein, saphenopopliteal junction and proximal lesser saphenous vein, distal lesser saphenous vein, and intersaphenous veins including Giacomini"s vein. Repeated examinations were excluded. The latent class analysis was applied to identify any possible anatomic distribution patterns of chronic venous disease. Bayesian information criteria revealed three latent class models fit for refluxing segment distribution as follows: 58.2% (n=1,089) were above-the-knee greater saphenous vein segments including saphenofemoral junction (pattern 1); 29.3% (n=548) were below-theknee greater saphenous vein segments (pattern 2); and 12.5% (n=234) were lesser saphenous vein segments and intersaphenous veins including Giacomini"s vein (pattern 3). There was no age- or sex-specific differences in the chronic venous disease distribution patterns. The latent class analysis, by identifying previously unseen subgroups within the sampled population, provides a new approach to classification of reflux patterns in chronic venous disease. Identification of latent classes may provide understanding of different pathophysiological bases of venous reflux and more optimal planning for interventions.

Revisión bibliográfica de las recomendaciones de las Guías de Práctica Clínica para la prescripción de Medias de Compresión Médica

La terapia de compresión se puede aplicar con diversos dispositivos, entre los que se incluyen vendajes, sistemas de compresión neumática secuencial, dispositivos de velcro autoajustables, medias de compresión y los sistemas 2 en 1 compuestos por dos calcetines. Las principales indicaciones clínicas de las medias de compresión son la prevención y/o el tratamiento de los síntomas de la insuficiencia venosa primaria y el síndrome postrombótico, así como el linfedema y el lipedema. Tan solo a una minoría de los pacientes que necesitaría terapia de compresión a largo plazo se les llegan a prescribir. La inexperiencia, la falta de formación y la gran cantidad de materiales diferentes son consideradas como obstáculos por el profesional para la recomendación de medias. Por otro lado, también existe una escasa adherencia terapéutica por parte de los pacientes. El objetivo de este trabajo fue identificar y analizar las recomendaciones que ofrecen las principales guías y documentos basados en evidencias científicas para ayudar a los profesionales sanitarios a prescribir la media más adecuada para cada persona y conseguir los mejores resultados. Para ello, se han consultado 7 documentos basados en evidencias científicas. Las lagunas de conocimiento detectadas, sumadas a la confusión que se deriva de la variedad de tipos de medias disponibles, de la diversidad de condiciones clínicas que pueden requerir sus uso y de la variabilidad de situaciones personales que puede presentar cada paciente, hacen que las recomendaciones de las guías actualmente vigentes resulten insuficientes para resolver las dudas que surgen a la hora de prescribir medias de compresión.

A randomized trial of surgery alone versus surgery plus compression in the treatment of venous leg ulcers in patients with primary venous insufficiency

Background/Aim.Venous leg ulcers (VLU) are a significant health problem worldwide. It is well known that VLU are difficult to treat and that they have high tendency for recurrence. Compression therapy is the preferred treatment modality but there is growing evidence that correction of underlying venous disorder in early stages of the disease in addition to compression treatment may improve ulcer healing and reduce recurrence rate. Methods. An open, prospective, randomized, single-center study, with a 6-months follow-up was performed to determine the efficacy of two different treatment modalities (surgery alone versus surgery plus compression) in the treatment of VLU in patients with primary venous insufficiency. Patients with secondary venous insufficiency and/or thrombosis were excluded from the study. Overall, 71 patients were randomized (37 men, 34 women; mean age 60 years) into two groups: the group A ? 34 patients who underwent surgical intervention (stripping) and postoperatively were treated with simple wound dressing only, and the group B ? 37 patients who underwent surgical intervention (stripping) and wore a heelless open-toed elastic class III compression device knitted in tubular form ?Tubulcus? (Laboratoires Innothera, Arcueil, France). All patients in group B were instructed to wear compression device continuously during the day and night. The study was performed at the Clinic for Cardiovascular and Transplant Surgery, Clinical Centre Nis (Serbia) with primary endpoint of the study being complete ulcer healing at 180 days. Results. The healing rate was 29.41% (10/34) in the group A, and 56.76% (21/37) in the group B (p < 0.01). Mean healing time in the group A was 141 ?15 days, and in the group B it was 98 ?12 days (Log-rank life table analysis: p < 0.001). Conclusion. This study suggests that for VLU in patients with primary venous insufficiency, surgery plus compression therapy provides higher healing rate and faster healing time compared to surgery only.

Study to compare open surgery, endovenous thermal ablation and ultrasound guided foam sclerotherapy for treatment of varicose veins

Introduction and Objective: To compare open surgery, Endovenous thermal ablation(EVTA) and ultrasound(USG) guided foam sclerotherapy for primary superficial venous insufficiency(PVI) with respect to obliteration of superficial venous system at 3 months, clinical outcome and cost.Materials and Methods: Between January 2015 to January 2016, all patients with symptomatic PVI of lower limbs who were willing for definitive management were randomized to open surgery (n=20), EVTA (n=40) or ultrasound guided foam sclerotherapy (n=20). In foam sclerotherapy group, review USG was done at 1 week and if necessary re-injection was done. The patients in all the groups underwent review USG at 3 months. Obliteration of superficial venous system, clinical outcome and costs were registered.Results: 5 patients in foam sclerotherapy group required re-injection at 1 week. Superficial venous system was obliterated in all the patients of all the groups at 3 months. Improvement in clinical score was similar in all groups. The foam sclerotherapy group had less frequent analgesia intake, earlier return to normal activity and lower cost. Local complication rate was slightly higher in foam sclerotherapy group.Conclusion: Foam sclerotherapy is a cheaper alternative to open surgery & EVTA for PVI with respective to early measures of clinical outcome. USG guided sclerotherapy demonstrated to be a safe and effective procedure for the treatment of chronic venous insufficiency. The observed complications were minimal and most of the patients reported satisfaction with the treatment outcomes. If patient have no cost issue, endovenous thermal ablation of varicose veins is better than open surgery & foam sclera in context of minimally invasive, cosmetic, less pain, no incisions, early ambulation & same day discharge.

Predictors of the post-thrombotic syndrome and their effect on the therapeutic management of deep vein thrombosis.

The post-thrombotic syndrome (PTS), which refers to chronic clinical manifestations of venous insufficiency after a deep vein thrombosis (DVT), is a frequent occurrence. Because treatment options for PTS are limited, its management mainly relies on the prevention of its occurrence after DVT. Among identified predictors of PTS, extensive proximal location of DVT directly modifies the treatment of DVT because of the possibility of performance of complementary endovascular techniques. The association between poor international normalized ratio control and subsequent PTS should encourage physicians to perform frequent and regular international normalized ratio monitoring of patients receiving vitamin K antagonists. Other identified PTS risk factors are ipsilateral DVT recurrence, older age, pre-existing primary venous insufficiency, obesity, and residual venous obstruction, but these are less amenable to therapy. Because of their potential therapeutic implications, identification of biomarkers that are predictive of PTS such as markers of inflammation is crucial and such research is ongoing.

Primary venous insufficiency increases risk of deep vein thrombosis.

Varicose veins have been recognized as a risk factor for deep vein thrombosis (DVT). However, venous reflux has not carried the same correlation. This study evaluated the association between primary valvular reflux and DVT. We performed a nested case-control study with enrollment of outpatients presenting to the vascular laboratory with signs and symptoms of DVT. All patients had a complete bilateral venous duplex examination evaluating for DVT and superficial and deep venous valvular reflux. Eighty-seven patients with confirmed DVT on venous duplex were selected for the study group. The control group was randomly selected from the same cohort in a 4:1 ratio matched by age and gender (n = 348). Groups were compared for the prevalence of deep and superficial reflux. DVT outpatients were 4.7-times more likely to have primary valvular reflux than symptomatic controls (65.5% vs 29.0%; 95% confidence interval [CI], 2.8-7.7; P < .000001). Deep reflux was 2.1-times more prevalent (36.8% vs 21.6%; odds ratio, 2.12; 95% CI, 1.28-3.51; P = .005) and superficial reflux was 4.6-times more prevalent (43.7% vs 14.4%; odds ratio, 4.62; 95% CI, 2.75-7.77; P < .0000001) in DVT patients than in controls. DVT patients were also 2.1-times more likely to have combined deep and superficial reflux than non-DVT patients (13.8% vs 6.6%, 95% CI, 1.08-4.75; P = .044). The prevalence of primary valvular reflux in patients with DVT is significantly higher than expected. Reflux may be considered as a novel risk factor for DVT. Two-thirds of patients with DVT have pre-existent primary chronic venous disease, which is likely to contribute to post-thrombotic morbidity.

The Effect of Endovenous Laser Ablation of Incompetent Perforating Veins and the Great Saphenous Vein in Patients with Primary Venous Disease

This study aimed to investigate the clinical results and fate of incompetent perforating veins (IPVs) following treatment of superficial venous insufficiency, with or without endovenous laser ablation (EVLA) of IPVs. A retrospective analysis of patients with primary venous insufficiency (PVI) was conducted in a single institution from January, 2010 to December, 2011. IPVs were found in 311 patients (376 limbs). Among these, 132 patients (156 limbs) were treated with EVLA of IPVs and varicose vein surgery, and the remaining 179 patients (220 limbs) were treated with varicose vein surgery alone and served as controls. The fate of the IPVs, complications and clinical results were evaluated. The technical success rate of EVLA of IPVs was 100%. There was no statistical difference in complications between the two groups. At 1 year follow up, 68 perforators were recanalized and still incompetent in the EVLA treated IPV group compared with 437 incompetent perforators in the untreated IPV group (18.7% vs 92.6%; P < .001). A faster median ulcer healing time (1.40 months) was found in the EVLA treated IPV group (95% confidence interval [CI] 1.15-1.66 vs 3.30 months [95% CI 2.50-4.10]; P = .001), even though no statistical difference in the 12 month ulcer healing rate was observed between the two groups (P = .584). There were no significant differences between the two groups for varicose vein recurrence rates or changes in the Venous Clinical Severity Score (VCSS). EVLA was safe and effective in reducing the number of IPVs in PVI. However, the addition of IPV EVLA had no effect on ulcer healing rate, VCSS or varicose vein recurrence at 1 year follow up.

The Effect of Endovenous Laser Ablation of Incompetent Perforating Veins and the Great Saphenous Vein in Patients with Primary Venous Disease

This study aimed to investigate the clinical results and fate of incompetent perforating veins (IPVs) following treatment of superficial venous insufficiency, with or without endovenous laser ablation (EVLA) of IPVs. A retrospective analysis of patients with primary venous insufficiency (PVI) was conducted in a single institution from January, 2010 to December, 2011. IPVs were found in 311 patients (376 limbs). Among these, 132 patients (156 limbs) were treated with EVLA of IPVs and varicose vein surgery, and the remaining 179 patients (220 limbs) were treated with varicose vein surgery alone and served as controls. The fate of the IPVs, complications and clinical results were evaluated. The technical success rate of EVLA of IPVs was 100%. There was no statistical difference in complications between the two groups. At 1 year follow up, 68 perforators were recanalized and still incompetent in the EVLA treated IPV group compared with 437 incompetent perforators in the untreated IPV group (18.7% vs. 92.6%; p < .001). A faster median ulcer healing time (1.40 months) was found in the EVLA treated IPV group (95% confidence interval [CI] 1.15-1.66 vs. 3.30 months [95% CI 2.50-4.10]; p = .001), even though no statistical difference in the 12 month ulcer healing rate was observed between the two groups (p = .584). There were no significant differences between the two groups for varicose vein recurrence rates or changes in the Venous Clinical Severity Score (VCSS). EVLA was safe and effective in reducing the number of IPVs in PVI. However, the addition of IPV EVLA had no effect on ulcer healing rate, VCSS or varicose vein recurrence at 1 year follow up.

Predictors of post-thrombotic syndrome in a population with a first deep vein thrombosis and no primary venous insufficiency

Post-thrombotic syndrome (PTS) is the most frequent complication of deep vein thrombosis (DVT). Its diagnosis is based on clinical characteristics. However, symptoms and signs of PTS are non-specific, and could result from concomitant primary venous insufficiency (PVI) rather than DVT. This could bias evaluation of PTS. Using data from the REVERSE multicenter study, we assessed risk factors for PTS in patients with a first unprovoked unilateral proximal DVT 5-7 months earlier who were free of clinically significant PVI (defined as absence of moderate or severe venous ectasia in the contralateral leg). Among the 328 patients considered, the prevalence of PTS was 27.1%. Obesity (odds ratio [OR] 2.6 [95% confidence interval (CI) 1.5-4.7]), mild contralateral venous ectasia (OR 2.2 [95% CI 1.1-4.3]), poor International Normalized Ratio (INR) control (OR per additional 1% of time with INR < 2 during anticoagulant treatment of 1.018 [95% CI 1.003-1.034]) and the presence of residual venous obstruction on ultrasound (OR 2.1 [95% CI 1.1-3.7]) significantly increased the risk for PTS in multivariable analyses. When we restricted our analysis to patients without any signs, even mild, of contralateral venous insufficiency (n = 244), the prevalence of PTS decreased slightly to 24.6%. Only obesity remained an independent predictor of PTS (OR 2.6 [95% CI 1.3-5.0]). Poor INR control and residual venous obstruction also increased the risk, but the results were no longer statistically significant (OR 1.017 [95% CI 0.999-1.035] and OR 1.7 [95% CI 0.9-3.3], respectively). After a first unprovoked proximal DVT, obese patients and patients with even mild PVI constitute a group at increased risk of developing PTS for whom particular attention should be paid with respect to PTS prevention. Careful monitoring of anticoagulant treatment may prevent PTS.

Urinary hemosiderin: role in evaluation of chronic venous insufficiency

Chronic venous insufficiency (CVI) leads to skin changes with dermal hemosiderin deposition. We studied the presence of hemosiderin in the urine to assess if this could be used as a biochemical marker for CVI. Hereby we present a case control study conducted in a tertiary care centre in South India. There were 100 cases with evidence of advanced CVI (the Clinical-Etiology-Anatomy-Pathophysiology classification: C5, C6) confirmed by duplex scanning. Controls were 50 patients with leg ulcers due to other etiologies. All patients were subjected to urinary hemosiderin testing. In all 100 patients with CVI (C5 and C6 disease) axial venous reflux was confirmed by duplex ultrasound. Superficial venous reflux was noted in 71% of patients and deep venous reflux in 54.%. Primary venous insufficiency was the etiology in 81% of patients. Only 4/100 patients had detectable amounts of hemosiderin in the urine. Urine hemosiderin testing to determine presence or absence of CVI yielded the following values: positive predictive value-80%; negative predictive value-33%; sensitivity-4% and specificity-98%. The test could not be recommended as a marker of CVI. In Indian patients urinary hemosiderin is not a useful screening test in CVI.

Qualité de vie après traitement de l'insuffisance veineuse superficielle primaire

Venous symptoms and quality of life (QOL) of 78 patients (54 women, mean age 49,5±13,3 years) with primary superficial venous insufficiency (PSVI) were compared at one year after treatment with crossectomy and stripping (C/S, 56 patients) or endovenous laser ablation (EVLA, 22 patients) using the VEINES-QOL questionnaire. Both treatments significantly (p<0,001) improved the scores for venous symptoms (difference 10,6±9,9 and 9,9±8,2 score points for C/S and EVLA, respectively) and QOL (difference 10,3±8,7 and 8,4±6,6 score points for C/S and EVLA, respectively). No difference was found between treatments regarding symptoms or QOL improvement (p=0,30). We conclude that C/S and EVLA are equally effective in improving symptoms and QOL in PSVI.

Application of colour Doppler in encircling constriction of the superficial femoral vein in primary deep venous insufficiency of the lower limbs

1. The aim of the present study was to evaluate the clinical value of colour Doppler application in encircling constriction of the superficial femoral vein in deep vein insufficiency. 2. A total of 87 patients with primary deep venous insufficiency (PDVI) using ascending venography were randomly divided into group A (44 patients) and group B (43 patients). All patients underwent encircling constriction of the superficial femoral vein, high ligation and ablation of the great saphenous vein and perforator vein. The duration of venous reflux at operation was monitored with colour Doppler in group A (but not group B) to evaluate the immediate effects. Clinical grading and scoring of the clinical, etiological, anatomical, pathophysiological (CEAP) classification system were used to evaluate the follow-up curative effect. 3. In four cases from group A, completely destroyed valves were identified at the time of operation and autografting of the vein segment with a valve was carried out. The intraoperative examination of colour Doppler in group A showed a much shorter duration of vein reflux after the encircling constriction procedure than the presurgery condition. According to the results of CEAP grading, the success rate of group A (95.0%, 38/40) was significantly higher than that of group B (76.7%, 33/43). Postoperative clinical scores were markedly lower than preoperative scores in both groups A and B. 4. In conclusion, our data suggest that application of colour Doppler in encircling constriction of superficial femoral vein might enhance surgical pertinence and improve surgical effect for PDVI.

Frequency and Predictors of Post-Thrombotic Syndrome in Patients with a First, Unprovoked Deep Vein Thrombosis and No Prior Primary Venous Insufficiency: Results From the REVERSE Cohort Study,

Abstract 3332 Background:Post thrombotic syndrome (PTS) is the most common complication of deep vein thrombosis (DVT). Symptoms and signs assessed by the Villalta PTS scale are non-specific and may have causes other than PTS, especially primary venous insufficiency. This may lead to an overestimate of patients categorized as having PTS. To date, the frequency and predictors of PTS in patients with DVT who are free of primary venous insufficiency have not been evaluated. Methods:Using data from the REVERSE prospective multicentre cohort study, we analyzed the prevalence and risk factors for PTS in patients who had a first, unprovoked, unilateral proximal DVT 5–7 months previously and did not have clinically significant primary venous insufficiency (defined as the absence of moderate or severe venous ectasia in the contralateral leg). At the time of enrolment in the REVERSE study, PTS was evaluated in the DVT-affected leg using the Villalta scale and was considered to be present if Villalta score >4. Independent predictors of PTS were assessed using a multivariable logistic regression model adjusting for age, sex, and use of compression stockings and included all variables achieving a p value ≤ 0.10 in univariate analysis. Results:Between October 2001 and March 2006, 664 patients were enrolled in the REVERSE study after having received a 5–7 month course of anticoagulant therapy. Of these, 452 had DVT with or without concomitant pulmonary embolism (PE) as the index event. Of these, 131 patients were excluded from this sub-study for the following reasons: previous secondary DVT/PE (n=24), presence of moderate or severe venous insufficiency in the contralateral leg (n=54), no PTS assessment (n=53). Among the remaining 321 sub-study patients, 48% (n=155) reported using compression stockings.The overall prevalence of PTS 5–7 months after DVT was 27.4% (n=88). The distribution of PTS severity category was as follows: mild PTS (Villalta score, 5–9) in 80% (n=70) of cases, moderate PTS (Villalta score, 10–14) in 17% (n=15) of cases and severe PTS (Villalta score ≥15 or ipsilateral leg ulcer) in 3.4% (n=3) of cases.In univariate analysis, age, sex, concomitant PE at presentation, thrombophilia (mutation of factor II or V, elevated factor VIII or hyperhomocysteinemia, presence of a lupus anticoagulant) and levels of the inflammatory marker C reactive protein or elevated ddimer before stopping anticoagulant therapy did not influence the risk of developing a PTS at 5–7 months (all p>0.10). Obesity (OR=2.3 [1.3 – 4.0]), household income <$25,000 per annum (OR= 2.8 [1.2 – 6.8]), mild venous insufficiency (OR=2.3 [1.2 – 4.4]) and ultrasonographic evidence of ipsilateral vein wall thickening or residual venous obstruction at 5–7 months (OR=1.9 [1.0 – 3.4]) were found to be predictors of PTS in the multivariable model. Poor INR control tripled the risk of PTS but the result did not reach statistical significance (OR=3.5 [0.8 – 15.8]).When restricting our analysis to the 226 patients without any signs, even mild, of contralateral venous insufficiency, the prevalence of PTS decreased slightly to 24.8% (n=56). Only obesity remained an independent predictor of PTS (OR=2.3 [1.2 – 4.4]). Poor INR control, ultrasonographic features described above and household income <$25,000 per annum also increased the risk of PTS, but results were no or no longer statistically significant (OR=2.8 [0.5 – 17.1], OR= 1.7 [0.9 – 3.4] and (OR=1.7 [0.7 – 4.5]) respectively). Conclusions:In a population of patients with a first unprovoked proximal DVT and without significant primary venous insufficiency, obesity and ultrasonographic evidence of DVT sequelae at 5–7 months after DVT independently influenced the risk of PTS. Mild clinical expression of primary venous insufficiency was also found to be a predictor of PTS and could therefore play a role in PTS pathophysiology. Nevertheless, it had a limited impact on the assessment of the overall prevalence of ipsilateral PTS according to the Villalta scale. Disclosures:Crowther:Pfizer: Consultancy, Honoraria; Leo Pharma: Consultancy, Honoraria; Bayer: Consultancy, Honoraria; BI: Honoraria; CSL Behring: Consultancy; Octaphram: Consultancy; Artisan: Consultancy.

Progression of reflux patterns in saphenous veins of women with chronic venous valvular insufficiency

Venous ultrasonography identifies reflux patterns of the great and small saphenous veins (GSV, SSV), allowing evaluation of lower extremities for treatment planning and patient follow-up. To determine progression of saphenous vein reflux patterns in women with primary venous valvular insufficiency. Venous ultrasonography was performed in the extremities of 92 women, 43 ± 12 (23-77) years old, CEAP (clinical, aetiological, anatomical and pathological elements) clinical classes C1-C2. Two examinations were performed 33 ± 19 (8-89) months apart in patients without saphenous vein treatment. GSV and SSV reflux patterns were classified as segmental, multisegmental, distal, proximal, diffuse and normal. Prevalence was determined for each examination, separately for right and left extremities, and jointly. Prevalence was compared using χ2 statistics. Reflux prevalence was higher for the GSV, 89% (164/184) and 88% (n = 162), than for the SSV, 24% (n = 45) and 30% (n = 56), respectively for first and second examinations (P < 0.001). Reflux pattern prevalence was not significantly different in the right and left extremities (1.0 > P > 0.14). Most prevalent patterns were (a) GSV segmental reflux initially, 41% (76/184), decreasing to 28% (52/184) (P = 0.009), and (b) GSV multisegmental reflux at the second examination, increasing from 26% (48/184) to 40% (73/184) (P = 0.006). Prevalence of other GSV or SSV reflux patterns did not change significantly (0.88 > P > 0.19). We documented early findings and venous reflux progression in a specific population of women with varicose veins, reticular veins and telangiectasias. GSV segmental reflux was most prevalent initially, progressing to GSV multisegmental reflux.

Leg ulceration: the importance of treating the underlying pathophysiology

The last 20 years have seen considerable advances in the management of vascular diseases both in non-invasive imaging and minimally invasive surgical interventions. Colour duplex ultrasonography provides non-invasive and increasingly high-resolution anatomic and haemodynamic vascular information. This has been complimented by the development of minimally invasive interventional procedures such as subintimal angioplasty and endovenous treatments, all of which can be performed under local anaesthesia. These advances can now be utilized to improve both the assessment and management of patients with chronic leg ulceration where the aetiology is usually vascular and mostly primary venous insufficiency. Using non-invasive Doppler pressures and colour duplex imaging, the anatomic and haemodynamic pattern of the underlying vascular disease (and consequently the pathophysiology) can be precisely determined. This enables appropriate planning and targeting of effective management from an early stage in the history of any particular ulcer. This paper highlights the importance of achieving accurate diagnosis and instituting effective treatments that are appropriately targeted at the underlying pathophysiology, in patients with chronic leg ulceration, and describes how recent advances in technology and interventions have substantially increased the tools available to the vascular specialist. Thus allowing safe and effective management of what can otherwise become a prolonged or recurrent disease process.

Prevention and treatment of venous ulcers in primary chronic venous insufficiency

Prevention and treatment of venous ulcers in primary chronic venous insufficiency

A randomized, controlled trial of endovenous thermal ablation using the 810-nm wavelength laser and the ClosurePLUS radiofrequency ablation methods for superficial venous insufficiency of the great saphenous vein

Great saphenous vein (GSV) incompetence is the most common cause of superficial venous insufficiency. Radiofrequency catheter ablation (RFA) is superior to conventional ligation and stripping, and endovenous laser treatment (EVL) has emerged as an effective alternative to RFA. This randomized study evaluated RFA and EVL for superficial venous insufficiency due to GSV incompetence and compared early and 1-year results. Between June 2006 and May 2008, patients with symptomatic primary venous insufficiency due to GSV incompetence were randomized to RFA or EVL. Patients with bilateral disease were randomized for treatment of the first leg and received the alternative method on the other. Pretreatment examination included a leg assessment using the Venous Clinical Severity Score (VCSS) and CEAP classification. Patients completed the Chronic Venous Insufficiency Questionnaire 2 (CIVIQ2). RFA was performed with the ClosurePlus system (VNUS Medical Technologies, Sunnyvale, Calif). EVL was performed with the EVLT system (AngioDynamics Inc, Queensbury, NY). Early (1-week and 1-month) postoperative results of pain, bruising, erythema, and hematoma were recorded. Duplex ultrasound (DU) imaging was used at 1 week and 1 year to evaluate vein status. VCSS scores and CEAP clinical class were recorded at each postoperative visit, and quality of life (QOL) using CIVIQ2 was assessed at 1 month and 1 year. The study enrolled 118 patients (141 limbs): 46 (39%) were randomized to RFA and 48 (40%) to EVL, and 24 (20%) had bilateral GSV incompetence. At 1 week, one patient in the RFA group had an open GSV and was deemed a failure. More bruising occurred in the EVL group (P = .01) at 1 week, but at 1 month, there was no difference in bruising between groups. At 1 year, DU imaging showed evidence of recanalization with reflux in 11 RFA and 2 EVL patients (P = .002). The mean VCSS score change from baseline to 1 week postprocedure was higher for RFA than EVL (P = .002), but there was no difference between groups at 1 month (P = .07) and 1 year (P = .9). Overall QOL mean score improved over time for all patients (P < .001). CEAP clinical class scores of >or=3 were recorded in 21 RFA (44%) and 24 EVL patients (44%) pretreatment, but at 1-year, 9 RFA (19%) and 12 EVL patients (24%) had scores of >or=3 (P < .001). This represented a significant improvement in all patients compared with baseline. Both methods of endovenous ablation effectively reduce symptoms of superficial venous insufficiency. EVL is associated with greater bruising and discomfort in the perioperative period but may provide a more secure closure over the long-term than RFA.

Development of Primary Superficial Venous Insufficiency: The Ascending Theory. Observational and Hemodynamic Data From a 9-Year Experience

Hemodynamic principles suggest that primary venous insufficiency follows the hydrostatic column of venous pressure of the limbs, and therefore, venous reflux begins at the lower points and rises upwards. To test the hypothesis of an "ascending development" of reflux, we carried an observational study to analyze the natural evolution of lower limb venous insufficiency. During 9-year period patients with primary superficial venous disease who refused treatment were followed prospectively with 6-month scheduled clinical and duplex ultrasound examinations. Localization, stage, and evolution of the venous patterns were compared. A total of 104 limbs in 99 patients were analyzed (12 males, 92 female; mean age 48.7 years). Prevalence of reflux was (p < 0.001) more frequent along great-saphenous and its tributaries (78/104, 75%) than nonsaphenous veins. The time of re-examination ranged from 1 to 13 years (mean 4 +/- 3.1 years). With the exception of six remaining stable, all the veins showed a progression of insufficiency (94%); 47 involved deep circulation. In all the worsened refluxes, an extension to reach one or more venous segments at an upper level, uninvolved before, was found. There was no downward oriented pattern of progression. There was no significant difference in age, gender, and type of vein between the stable and progressive diseases. Natural history of primary venous insufficiency is that of a progressive disease, which begins at lower levels of the limbs and develops in an antegrade manner as venous stasis is higher where force of gravity is higher. This data do not support the aggressive and widespread treatment of terminal valve as first approach, but need to be supported by larger studies.