Clinicopathological evidence that neovascularisation is a cause of recurrent varicose veins

The sonographic features of lymph node venous networks and flow patterns in patients with primary chronic venous disease

BACKGROUND

Our study aims to enhance the understanding of lymph node venous networks (LNVNs) by summarising their anatomical, sonographic features, and reflux patterns.

METHOD

We examined 241 legs from 141 patients with primary chronic venous disease (CVD) using duplex ultrasound.

RESULTS

The findings indicated variations in the shape, size, vascularity, and echogenicity of LNVN. The superficial inguinal lymph node with reflux appeared slightly larger, exhibiting higher velocities in the hilar artery. Regarding connections, venous flow within LNVN was predominantly drained through the saphenofemoral junction (SFJ), anterior accessory great saphenous vein (AAGSV), and great saphenous vein (GSV). A significant number of LNVNs were observed to be associated with anterolateral thigh tributaries. The study also identified valve cusps within LNVN.

CONCLUSION

This study revealed a 12% prevalence of primary LNVN. Understanding the anatomical and haemodynamic features of LNVN informs treatment strategies and potentially helps prevent the recurrence of varicose veins.

PREVAIT after modern open surgery and endothermal ablation: a systematic review

INTRODUCTION

Presence of varices after operative treatment (PREVAIT) is a common finding after varicose vein surgery, and has been shown to significantly reduce the quality of life of those it affects. As such, long-term results after varicose vein interventions have to be taken into account when choosing a technique. This study aims to systematically review current evidence on the recurrence of varicose veins after three different techniques: conventional surgery (HLS), endovenous laser ablation (EVLA) and radiofrequency ablation (RFA).

EVIDENCE ACQUISITION

A literature search was performed on the PubMed and Web of Science databases, which returned 546 studies. Fourteen studies were included. Data were extracted using predefined forms.

EVIDENCE SYNTHESIS

A total of 2795 patients were included, for a total of 3056 legs treated. 503 legs (16.5%) were treated by HLS, 1791 (58.6%) by EVLA and 762 (25.0%) by RFA. PREVAIT was reported in 34.4% for patients treated by HLS, for a mean follow-up comprised between 18 months and 5 years; 16.6% by EVLA, for a mean follow-up between 112 days and 5 years and 6.7% of those treated by RFA, for a mean follow-up between 106 days and 5 years. Regarding patterns of recurrence, the development of new varicose veins was the most commonly reported mechanism of recurrence after HLS (range: 29.8-91%) and EVLA (range: 40-81.6%), but not RFA, where recanalization of the occluded saphenous trunk accounted for up to 67.0% of the cases. Only one study reported quality of life related recurrence, and included patients treated by HLS and EVLA, but not RFA. Aberdeen Varicose Vein Questionnaire (AVVQ) score, physical functioning domains of the SF-36 score and patient satisfaction were significantly worse in patients with clinical recurrence. Re-intervention rates after recurrence were reported in 5 studies, ranging between 7.7% and 37.7% for HLS and 0-57.0% for EVLA. Only one study reported data on re-intervention for RFA patients, which was 6.67%.

CONCLUSIONS

Recurrence is a reliable indicator of long-term efficacy of a varicose vein treatment and appears to occur more frequently after HLS. Although there are several mechanisms of recurrence, the development of new varicose veins was the most commonly observed. There is clear heterogeneity among definitions of recurrence and follow-up periods in literature.

Clinical Results 5 Years after Great Saphenous Vein Stripping

Background: As a standard treatment for the varicose vein of the great saphenous vein (GSV) type, endovenous ablation (EVA) is the main approach. However, as a background to this, in Europe and the United States, neovascularization (Neo) following high ligation (HL) of the saphenofemoral junction (SFJ) at the time of GSV stripping has been emphasized as one of the reasons for the high rate of recurrence. However, in Japan, almost no similar mid- or long-term results of GSV stripping have been reported. Patients and Methods: From September 2011 to March 2014 when EVA was not my surgical option, 413 consecutive legs of patients underwent GSV stripping by myself using the same procedure. The patients were contacted by phone 5 years later, and recurrent varices after surgery (REVAS) and reoperation (REDO) were investigated. A total of 270 legs of the 391 living cases (69%) underwent venous ultrasonography (VUS). HL of the SFJ was performed via central flash ligation with towing and pulling out of the peripheral side branches containing the accessory saphenous veins. In principle, GSV stripping was performed using the invagination method in the range of the entire reflux region from the HL cut section to the confluent section of the side branch causing branch varicose veins. The range of stripping was to the upper thigh in 3 legs, to the middle thigh in 3 legs, to the lower thigh in 7 legs, to the knee in 46 legs, to the upper calve in 83 legs, to the middle calve in 52 legs, and over the full length in 76 legs. Stab avulsion was performed as much as possible for the side-branch varices. On VUS, the SFJ's stump of GSV, the presence of side-branch remnants and their reflux, the presence or absence of Neo, and the recurrent lesions in other sites were evaluated. REVAS were classified as follows: Level 1, symptomatic recurrent lesion for which surgery is indicated; Level 2, asymptomatic recurrent lesion possibly requiring future surgery; and Level 3, asymptomatic recurrent lesion that is unlikely to require future surgery. Results: Of the 391 legs of patients who could be contacted, REDO was performed in 23 (6%), including 15 limbs, immediately after this investigation, and symptomatic REVAS were observed in 29 (7%). In 270 legs examined by VUS, REVAS were diagnosed as follows: 29 legs with Level 1 lesion, 40 legs with Level 2 lesion, and 27 legs with Level 3 lesion. Level 1 REVAS that occurred at the SFJ were observed only in 3 legs (1.1%), Level 1 REVAS due to incompetent perforating veins (IPVs) were observed in 14 legs (5%), and Level 1 solitary tributary varices were observed in 9 legs (3%). Conclusion: In this study, REVAS at the SFJ were significantly less than those in the past reports. It has been shown that REVAS due to IPVs or solitary tributary varices were more important than those at the SFJ. (This is a translation of Jpn J Phlebol 2019; 30(3): 259-265.).

Histopathology of Neovascularisation Observed During Saphenofemoral Re-Do High Ligation

Objective

The primary aim of this study was to assess the histopathological criteria of neovascularisation following saphenofemoral high ligation with regard to the delineation of the pathophysiology of the process. The secondary aims were to describe the perivenous morphological changes and to present cost effective agents to histopathologically diagnose neovascularisation.

Methods

In a prospective study design, vein samples of consecutive patients with recurrent varicose veins in the groin undergoing surgery were collected. The samples were analysed by a vascular histopathologist with a light microscope using standard staining techniques.

Results

The study population comprised 35 patients, 24 of whom were female (69%). Histopathologically, 28 samples (80%) showed typical aspects of neovascularisation. The remaining seven specimens (20%) showed thickened residual veins. An irregular vascular network, increasing perivenous collagen and elastic fibres and perivenous lymph nodes were observed. Present venous valves were the main criterion for residual veins. A surprising finding was the presence of scar tissue in the views of reparative incomplete new valves. Standard staining agents were sufficient to make the diagnosis of neovascularisation in 73% of the samples and reduced the cost by 30% compared with the regular use of specific markers.

Conclusion

The histopathological analysis of operative specimens may clarify whether a varicose vein recurrence is the result of neovascularisation or some other cause. Although interesting for research, academic interest, and classification, this may be of very limited clinical relevance for the patient.

Feasibility and technique of endovenous laser ablation (EVLA) of recurrent varicose veins deriving from the sapheno-femoral junction-A case series of 35 consecutive procedures

Aim

To assess the feasibility and technical success of endovenous laser ablation (EVLA) of recurrent varicose veins arising from the former sapheno-femoral junction (SFJ).

Methods

We retrospectively analyzed all EVLA procedures treated in our institution by one surgeon between March 2019 and April 2020 and selected all consecutive cases with SFJ recurrence occuring after surgical high ligation and stripping or endovenous thermal ablation for incompetence of the great saphenous vein (GSV) in superficial venous insufficiency. The feasibility, technical success as determined by duplex ultrasound on the postoperative visit, complications and rate of endothermal heat-induced thrombosis (EHIT) were recorded. A subgroup definition was performed based on sonographic morphology of the recurrence and resulting strategy of ablation.

Results

Thirty-five limbs with SFJ recurrence in 34 patients were treated with EVLA in order to shut down the highest refluxing point. In 22 interventions, it was required to switch off a short stump or a neovascularization by direct puncture (Subgroup 1). In 13 treatments, the presence of residual GSV segments, or persistent, varicose transformed major tributaries like the anterior accessory great saphenous vein, enabled cannulation and advancing the laser fiber from distal to the former SFJ (Subgroup 2). The EVLA procedures could be successfully carried out in all 35 cases. There were no major complications, no thromboembolism or EHIT, and no local groin complications. In one case, the patient developed a phlebitic response that required temporary medication. Technical success was achieved with 34/35 treatments (97.1%). When comparing the subgroups, the morphological pattern of the SFJ recurrence and the resulting technique of puncture, cannulation and ablation did not influence the result.

Conclusions

The results of this case series suggest that SFJ recurrences can also be successfully treated in situations where there are tortuous or short stumps that require direct puncture and ablation.

Management of Varicose Veins by High Ligation, Sclerotherapy and Duplex Scanning

Background

Venous duplex scanning helps in the management of patients after high ligation of the greater saphenous vein and spares it for future vascular reconstructions.

Methods

Duplex scanning was used to locate incompetent veins in these patients. The clinical, etiologic, anatomic, and pathophysiologic (i.e., CEAP) criteria classified the clinical severity of disease. High ligations of the greater saphenous vein at the saphenofemoral junction were performed in 1,021 limbs of 608 patients who only had chronic superficial venous insufficiency. Unless contraindicated, the use of 30–40 mmHg compression hose was prescribed. The progression of venous disease was determined by examination, history, and duplex scanning at 1- to 3-month and 6- to 12-month intervals. Ulceration, ankle edema, night cramps, stasis changes, cellulitis, varicose veins, and reflux were recorded. If there was a nonhealing ulcer, no significant improvement, or a recurrence of symptoms, then residual varicose veins were injected with a sodium tetradecyl sulfate solution to sclerose incompetent veins. At follow-up times, limbs were classified as improved, stable, or worse.

Results

After the high ligation, symptoms were improved in 449 limbs (44%), stable in 398 limbs (39%), and worse in 174 limbs (17%). After sclerotherapy of 572 limbs, 517 limbs (90%) improved. Ulcers occurred in 14 limbs. Edema occurred in 33 limbs, cellulitis developed in 15 limbs, and night cramps occurred in 12 limbs. If varicose veins persisted, they were managed by sclerotherapy, and 60% of the sclerotherapy-treated limbs were free of symptoms or varicosities at 8 years.

Conclusion

High ligation at the saphenofemoral junction is a valuable procedure in select patients to preserve the greater saphenous vein. Periodic venous duplex scanning is needed to properly manage these patients.

Femoral vein valve incompetence as a risk factor for junctional recurrence

Background

Recurrent varicose veins occur up to 80% of procedures. The sapheno-femoral junction can be involved in more than 50% of cases. A detailed pathophysiological explanation of the phenomenon is still missing. The aim of the present work is to evaluate the role of femoral vein incompetence as risk factor for sapheno-femoral junction recurrence.

Methods

Three-hundred-eighty-one patients presenting an incompetent great saphenous vein system and eventually also an incompetent femoral tract (C2-6EpAsdPr) underwent a great saphenous vein high ligation with flush ligation also of the incompetent tributaries along the leg, sparing the saphenous trunk. Pre-operatively, all patients underwent a sonographic evaluation assessing the superficial and deep venous systems, including a detailed analysis of the iliac-femoral vein tract above the sapheno-femoral junction. A retrospective statistical analysis assessed the recurrence risk associated with iliac-femoral vein tract incompetence.

Results

In a 5.5 ± 1.9 years follow-up, great saphenous vein trunk reflux recurrence was detected in 45/381 (11.8%) cases. The reflux source was found in a reconnected sapheno-femoral stump in 11/45 cases (24.5%), in the pelvic network in 8/45 cases (17.8%), in a neovascularization process in 7/45 (15.5%) and in a newly incompetent great saphenous vein tributary in 19/45 (42.2%). At the pre-operative assessment, iliac-femoral vein tract reflux was present in 7 (26.9%) of the 26 cases who developed a sapheno-femoral junction recurrence and in 25 (7%) of the 355 patients who did not demonstrate sapheno-femoral junction recurrence (odds ratio: 4.8; confidence interval 95%: 1.8–12.6; p < .003).

Discussion

Despite many technical diagnostic and therapeutic refinements, varicose veins recurrence remains a frequent event. The present investigation points out the association among iliac-femoral vein tract incompetence and sapheno-femoral junction recurrences after high ligation.

Endovenous laser treatment of groin and popliteal varicose veins recurrence

Objectives Recurrent varicose veins following surgery is a common, complex and costly problem in vascular surgery. Treatment for RVV is technically more difficult to perform and patient satisfaction is poorer than after primary interventions. Nevertheless, traditional vein surgery has largely been replaced by percutaneous office-based procedures, and the patients with recurrent varicose veins have not benefited from the same advantages. In this paper, we propose an endovascular laser treatment that allows reducing the invasiveness and complications in case of SFJ and SPJ reflux after ligation and stripping of the great and small saphenous vein. Methods 8 SFJ and 1 SPJ stumps were treated by endovascular laser treatment in out-patient clinic. Endovascular laser treatment was performed with a 1470 nm diode laser and a 400 µc radial slim™ fiber. Intraoperative ultrasoud was used to guide the fiber position and the delivery of tumescent anesthesia. The gravity of chronic venous disease was determined according to the CEAP classification and the severity of symptoms was scored according to the revised Venous Clinical Severity Score (VCSS). Results The average linear endovenous energy density was 237 J/cm. Patients return to daily activities after a mean of 1.9 days after. The VCSS improved drastically from a mean of 8 pre-interventional to 1 at day 30 and until one year. During the follow-up period (mean 8 months, range: 5-17 months), all the stumps except one were occluded. All patients were very satisfied or satisfied with the method. No severe complications occurred. Conclusions Office-based endovascular laser treatment of groin and popliteal recurrent varicose veins with 1470 nm diode laser and radial-slim fiber is a safe and highly effective option, with a high success rate in the early post-operative period.

Randomized trial of radiofrequency ablation versus conventional surgery for superficial venous insufficiency: if you don't tell, they won't know

OBJECTIVES:

This study compared radiofrequency ablation versus conventional surgery in patients who had not undergone previous treatment for bilateral great saphenous vein insufficiency, with each patient serving as his own control.

METHOD:

This was a randomized controlled trial that included 18 patients and was carried out between November 2013 and May 2015. Each of the lower limbs of each patient was randomly assigned to undergo either radiofrequency ablation or conventional surgery. Clinical features (hyperpigmentation, hematoma, aesthetics, pain, skin burn, nerve injury, and thrombophlebitis) were evaluated at one week, one month, and six months postoperatively. Hemodynamic assessments (presence of resection or occlusion of the great saphenous vein and recurrent reflux in the sapheno-femoral junction and in the great saphenous vein) were performed at one month, six months, and 12 months postoperatively. The independent observer (a physician not involved in the original operation), patient, and duplex ultrasonographer were not made aware of the treatment done in each case. Clinicaltrials.gov: NCT02588911.

RESULTS:

Among the clinical variables analyzed, only the aesthetic evaluation by the physicians was significant, with radiofrequency ablation being considered better than conventional surgery (average, 0.91 points higher: standard deviation: 0.31; 95% confidence interval: -1.51, -0.30; p=0.003). However, in our study, we observed primary success rates of 80% for radiofrequency ablation and 100% for conventional surgery.

CONCLUSIONS:

If the physician is not required to inform the patient as to the technique being performed, the patient will not be able to identify the technique based on the signs and symptoms. Our study revealed that both techniques led to high levels of patient satisfaction, but our results favor the choice of conventional surgery over radiofrequency ablation, as patients who underwent conventional surgery had better hemodynamic assessments.

Treatment of Primary Venous Insufficiency by Endovenous Saphenous Vein Obliteration

The objective of this paper is to evaluate treatment of primary venous insufficiency by endovenous saphenous vein obliteration. Three hundred one limbs were treated in 206 women and 67 men with a mean CEAP Clinical Class of 2.4 ±0.9. Endovenous obliteration was combined with high ligation in 67 limbs (22%) and with stab avulsion phlebectomies in 181 (60%). Acute occlusion was achieved in 290 limbs (96%). Obliteration failures in 11 limbs were treated by saphenous stripping or managed expectantly. Paresthesias followed 15% of treatments confined to the thigh and upper leg and affected 30% of limbs when treatment extended to the ankle (p < 0.001). Eight potentially preventable thermal skin injuries occurred, five in particularly superficial venous segments, of which four were in men. At a mean follow-up of 4.9 months, 21 (7.2%) of successfully treated veins have partially or totally (n = two) recanalized, but only 11 (3.8% of 290) have Doppler-detectable reflux. Ninety-one patients have been followed up for 6 months to 1 year, showing significant improvement in CEAP class and progressive relief from clinical symptoms. At their latest visit, 94% rated themselves as being symptom-free or substantially improved. These midterm results with endovenous obliteration in the treatment of primary varicose veins suggest that it may be as effective as surgical stripping in eliminating greater saphenous vein reflux and delaying the appearance of new varicose veins. Simple procedural modifications, such as not treating to the ankle, prophylactic infiltration about superficially placed veins, and early duplex surveillance should diminish the complications observed in this early experience.

Clinical Relevance of Neovascularisation on Duplex Ultrasound in the Long-Term Follow-up after Varicose Vein Operation

Objective:

To evaluate the clinical relevance of neovascularisation at the saphenous ligation site.

Design:

Long-term follow-up after previous varicose vein surgery in a single patient group.

Setting:

Vascular clinic of a university hospital.

Patients:

Eighty-two patients (106 limbs) with a mean follow-up period of 56 months after correct saphenous ligation were submitted to duplex scanning.

Intervention:

Clinical assessment and colour duplex scanning of all the operated limbs. Reintervention in 15 limbs with perioperative evaluation of recurrent veins.

Main outcome measures:

Limbs with and without recurrent varicose veins were classified according to the degree of neovascularisation: grade 0 = no new communicating veins, grade 1 = tiny new vein with diameter <4 mm, grade 2 = new communicating vein with diameter >4 mm and pathological reflux. On reintervention the presence of neovascular veins at the site of the previous ligation was checked.

Results:

In 68 limbs without recurrent varicose veins, grade 0 was observed in 50 limbs (74%), grade 1 in 12 limbs (18%) and grade 2 in six limbs (9%). In 38 limbs with recurrent varicose veins, grade 0 was diagnosed in eight limbs (21%), grade 1 in four limbs (11%) and grade 2 in 26 limbs (68%). In 15 limbs with recurrent varicose veins and grade 2 neovascularisation, reintervention confirmed the duplex findings.

Conclusions:

The presence of grade 2 neovascularisation was associated with the recurrence of varicose veins, suggesting a causal relationship.

Recurrence following Varicose Vein Surgery

Objective:

To determine the site-specific rates of recurrence following varicose vein surgery.

Design:

Postal questionnaire followed up by telephone enquiries. Full clinical review, including continuous wave and duplex Doppler investigations were carried out for all patients with responses suggesting recurrence.

Setting:

Surgicare Manchester, an independent provider of specialist varicose vein treatments. All procedures were guided by Doppler ultrasound and performed by surgeons working to the same protocol.

Subjects:

A consecutive series of 250 operations on 246 Patients. Of these, 208 (85%) could be contacted for follow-up. Mean time to re-examination was 27 months.

Results:

Twelve patients returned spontaneously and 51 were recalled for examination based on questionnaire responses. Recurrences were divided into ‘site’, ‘perforator’ or ‘new site’ recurrence. Primary surgery to the sapheno-femoral junction (SFJ) had the lowest ‘site’ recurrence rate of 2.3% compared with 9.5% for SFJ re-operation. Primary surgery and re-operation of the sapheno-popliteal junction (SPJ) had higher recurrence rates of 8.3% and 7.8% respectively. New incompetence was detected in 5% and 2% of previously competent SFJ and SPJ respectively. Minor perforator incompetence was found in a further 14%.

Conclusions:

Varicose veins were progressive in some individuals, with new sites of incompetence appearing over time. However, ‘cure’ remains possible for most Patients and major recurrence can be reduced by Doppler diagnosis and precise surgery.

Endovenous Radiofrequency Ablation for the Treatment of Varicose Veins

Chronic venous insufficiency (CVI) is the most common vascular disease and represents a significant health care problem in the United States. Reflux of the great saphenous vein is the most common cause of this condition, whose symptoms include varicose veins, leg swelling, skin discoloration, and ulceration. The traditional treatment of this condition is saphenofemoral ligation with stripping of the saphenous vein followed by varicose vein removal, if necessary. Recent advances in minimally invasive endovenous therapy have led to the development of catheter-based radiofrequency ablation (RFA) of the saphenous vein, which has gained an increasing acceptance in clinical practice. Endovenous RFA was introduced into clinical practice in Europe in 1998 and in the United States in 1999. Since then, over 250,000 procedures have been performed worldwide. Procedure safety and efficacy are well understood, with over 60 publications on the subject in the peer review literature, including four randomized trials comparing this technology with traditional vein stripping surgery. With the advent of tumescent anesthesia, the majority of RFA procedures are now performed in an office setting. This article examines the current technology using RFA in saphenous vein ablation with the Closure catheter system. Procedural techniques and clinical outcome using RFA in saphenous vein ablation are discussed. Clinical data comparing RFA versus saphenous vein stripping are also examined. Lastly, the clinical utility of a new RFA catheter, ClosureFAST, is discussed. ClosureFAST is a new generation of RFA catheter and has exhibited significant improvement in the ease of use and the procedure speed over the previous generation catheters while maintaining the favorable patient recovery profile seen with the RFA technology.

Role of PTFE Patch Saphenoplasty in Reducing Neovascularization and Recurrence in Varicose Veins

Varicose veins have a high recurrence rate following surgery. Besides poor surgical technique, majority of these recurrences are attributable to neovascularization after both primary and repeat surgery. Authors have studied the effectiveness of a polytetrafluoroethylene (PTFE) patch interposition between the ligated vein stump and the overlying soft tissue at saphenofemoral junction in decreasing recurrence of varicose veins after initial surgery. Study was conducted on 50 patients of varicose veins with saphenofemoral junction incompetence. Patients were randomly divided into two groups, group A and group B alternately. In group A, standard surgical procedure was done followed by PTFE patch application. In group B, same surgical procedure was applied as in group A, with the exception of PTFE patch application. Patients in both groups were given similar postoperative care. A full venous duplex ultrasound assessment was performed in all the patients postoperatively. Neovascularization was observed in five patients (20 %) of group B, while it was not seen in any of the patients in group A at 1-year follow-up. This difference in neovascularization across the two groups was found to be statistically significant with a p value of 0.0251. Hence, authors concluded that patch saphenoplasty helps in reducing recurrence in varicose veins by decreasing neovascularization at saphenofemoral junction.

Anatomy of the lymph node venous networks of the groin and their investigation by ultrasonography

OBJECTIVE

To describe the anatomy of the lymph node venous networks of the groin and their assessment by ultrasonography.

MATERIAL AND METHODS

Anatomical dissection of 400 limbs in 200 fresh cadavers following latex injection as well as analysis of 100 CT venograms. Routine ultrasound examinations were done in patients with chronic venous disease.

RESULTS

Lymph node venous networks were found in either normal subjects or chronic venous disease patients with no history of operation. These networks have three main characteristics: they cross the nodes, are connected to the femoral vein by direct perforators, and join the great saphenous vein and/or anterior accessory great saphenous vein. After groin surgery, lymph node venous networks are commonly seen as a dilated and refluxing network with a dystrophic aspect. We found dilated lymph node venous networks in about 15% of the dissected cadavers.

CONCLUSION

It is likely that lymph node venous networks represent remodeling and dystrophic changes of a normal pre-existing network rather than neovessels related to angiogenic factors that occur as a result of an inflammatory response to surgery. The so-called neovascularization after surgery could, in a number of cases, actually be the onset of dystrophic lymph node venous networks.Lymph node venous networks are an ever-present anatomical finding in the groin area. Their dilatation as well as the presence of reflux should be ruled out by US examination of the venous system as they represent a contraindication to a groin approach, particularly in recurrent varicose veins after surgery patients. A refluxing lymph node venous network should be treated by echo-guided foam injection.

Significance of Reflux Abolition at the Saphenofemoral Junction in Connection with Stripping and Ablative Methods

Saphenous reflux interferes with the physiological decrease in pressure and induces ambulatory venous hypertension. Elimination of reflux is achieved by flush ligation at the incompetent saphenofemoral junction and stripping of the great saphenous vein, which is the basis of the conventional surgical therapy. Endovenous ablative methods substitute stripping by thermal of chemical destruction of the saphenous trunk; they usually refrain from saphenofemoral junction ligation. Short-term and medium-term results up to 5 years, achieved after endovenous ablation without high ligation, are comparable with those after conventional surgery, which questioned the necessity to ligate the incompetent saphenofemoral junction. Nevertheless, clinical symptoms caused by recurrent reflux occur as a rule not earlier than 8 to 10 years after efficient abolition of reflux. Consequently, randomized studies with long-term follow-ups exceeding 10 years are necessary for trustworthy assessment whether it is justified to abstain from saphenofemoral junction ligation.

Neovascularisation is not an innocent bystander in recurrence after great saphenous vein surgery

INTRODUCTION

This study sought to establish the causes of failure of great saphenous vein surgery among patients in whom there was confidence that accurate saphenofemoral ligation had been carried and the great saphenous vein had been stripped at least to knee level.

METHODS

This was an observational study of 100 limbs (66 patients) operated on by a single surgeon 5-22 years previously (mean: 12 years). The index operation was primary in 54 limbs and for recurrence in 46 limbs. Thirty-two patients were studied having been re-referred for recurrence while 34 were recalled for review. All were examined clinically and with duplex ultrasonography, and all completed questionnaires (Aberdeen varicose vein questionnaire [AVVQ] and EQ-5D-3L). In order to measure the extent of visible recurrence, a scoring system similar to that in the venous clinical severity score was used but with a range of 0-8.

RESULTS

There were visible varicosities in 77 of the 100 limbs. Duplex ultrasonography showed that recurrent saphenofemoral incompetence (SFI) was present in 27% of the limbs. This was judged to result from neovascularisation and was the most common source of reflux. AVVQ scores for the 27 limbs with recurrent SFI (median: 34, interquartile range [IQR]: 20-42) were higher than for the 73 with no recurrent SFI (median: 17, IQR: 11-29), which was a significant difference (Mann-Whitney U test, p<0.01). Analysing clinical scores with chi-squared tests indicated fewer visible varicosities in limbs without recurrent SFI than in those with recurrent SFI (p<0.01).

CONCLUSIONS

Neovascularisation remains poorly understood but it cannot be considered an innocent bystander.

Primary avalvular varicose anomalies are a naturally occurring phenomenon that might be misdiagnosed as neovascular tissue in recurrent varicose veins

OBJECTIVE

The objective of this study was to report a phenomenon in patients with primary varicose veins that resembles neovascular tissue in postsurgical recurrences-primary avalvular varicose anomalies (PAVA).

METHODS

Between March 2012 and July 2013, 756 patients (122 men, 634 women) with primary varicose veins (mean age, 53 years; range, 18-89 years) underwent duplex ultrasonography with retrospective analysis of their reflux patterns. We diagnose PAVA as small, refluxing vessels in legs with primary varicose veins and no history of surgery, trauma, or infection in the area that show one or more of three patterns of distribution: lymph node pattern-PAVA arising directly from groin lymph nodes; peritruncal pattern-PAVA wrapping around the great, small, or anterior accessory saphenous veins; and atypical pattern. PAVA are predominantly found within the saphenous fascia, but components have been found to emerge into the superficial and deep venous compartments.

RESULTS

We analyzed results from 1398 legs (756 patients). Sixty-four legs (4.6%) in 58 patients exhibited PAVA, bilateral in six patients and unilateral in 52 patients. Lymph node involvement and peritruncal PAVA were seen in 23.4% and 70.3% of legs, respectively. The small saphenous vein was the most common truncal vein to be involved (48.9% of peritruncal cases). More than one pattern of PAVA could be observed in seven legs. Of the 48 women with PAVA, 42% had concurrent pelvic vein reflux.

CONCLUSIONS

Neovascularization has been identified as a major cause of clinically recurrent varicose veins. Neovascular tissue has been described after endovenous thermoablation. We suggest that this might represent PAVA undetected preoperatively in some cases. PAVA are thin-walled, serpiginous, incompetent vessels that resemble neovascular tissue. We conclude that neovascularization should be diagnosed as a source of recurrence after endovenous surgery only if PAVA had been actively looked for, and excluded, in the preoperative diagnostic duplex ultrasound examination.

Single-visit endovenous laser treatment and tributary procedures for symptomatic great saphenous varicose veins

INTRODUCTION

Endovenous ablation of saphenous varicose veins has decreased morbidity and recovery time compared with open surgery. This study assessed the outcome and mid-term patient satisfaction of single-visit endovenous laser treatment (EVLT) alone, EVLT combined with phlebectomies and endovenous chemical ablation.

METHODS

A retrospective review was conducted of all patients (n=91) in 2008-2009 who underwent single-visit day-case EVLT using local anaesthesia under a single surgeon. Postoperative venous ultrasonography at 2 and 14 months was reviewed. A telephone questionnaire was carried out to assess recurrence of symptoms and quality of life at 42 months.

RESULTS

Overall, 124 limbs underwent day-case EVLT under local anaesthesia using an 810nm diode laser at a continuous setting of 14W. Forty-eight of these underwent EVLT alone while fifty underwent EVLT with phlebectomies and twenty-six underwent EVLT with endovenous chemical ablation. Ninety-one per cent of limbs underwent two-month postoperative imaging. All had satisfactory great saphenous vein (GSV) ablation (anterior thigh vein patency: n=1). The majority (84%) of limbs underwent 14-month imaging with a 98% GSV ablation rate. Three per cent had anterior thigh vein and saphenofemoral junction incompetence. Recurrence of GSV patency and reflux was <1%. The response rate to the questionnaire was 60%: 95% of respondents confirmed improvement following treatment, 62% remained symptom free at 42 months while 65% of patients with a return of symptoms deemed them mild. The questionnaire was scored out of 56 for symptoms and quality of life. Those with symptoms scored significantly higher.

CONCLUSIONS

At 42 months, the majority of limbs remained asymptomatic. The short-term GSV ablation rates were excellent. Overall mid-term review of patients has shown a well received single-visit service with concomitant phlebectomy or endovenous ablation, and good ablation and patient satisfaction rates.

Strip-tract revascularization as a source of recurrent venous reflux following high saphenous tie and stripping: results at 5–8 years after surgery

Objective

We have previously reported strip-tract revascularization 1 year following high saphenous ligation and inversion stripping. This study reports the 5–8 year results in the same cohort.

Methods

Between 2000 and 2003, 72 patients presented with primary varicose veins and had undergone high saphenous ligation and inversion stripping plus phlebectomies with or without subfascial endoscopic perforator surgery. Of the 64 patients who had attended for follow-up at 1 year, 35 patients (male:female, 16:19; 39 legs) underwent duplex ultrasonography 5–8 years after surgery (response rate 55%). Duplex ultrasonography was performed and all strip-tract revascularization and reflux and groin neovascularization was documented.

Results

Eighty-two percent of legs of patients showed some evidence of strip-tract revascularization and reflux. Full and partial strip-tract revascularization and reflux was seen in 12.8% and 59% of limbs of patients, respectively, and 10.2% limbs of patients had neovascularization only at the saphenofemoral junction only. Seven limbs of patients showed no revascularization.

Conclusion

Five to eight years after high saphenous tie and stripping, 82% of legs of patients showed some strip-tract revascularization and reflux and 12% showed total revascularization and reflux of the stripped great saphenous vein.

The hemodynamic paradox as a phenomenon triggering recurrent reflux in varicose vein disease

A curious hemodynamic phenomenon emerging as a consequence of the treatment of varicose veins can offer a reasonable explanation why varicose vein and reflux recurrences occur tenaciously irrespective of the applied therapeutic procedure. Saphenous reflux is the most important hemodynamic factor in varicose vein disease: it is responsible for the hemodynamic disturbance, ambulatory venous hypertension, clinical symptoms, and chronic venous insufficiency. Abolition of saphenous reflux eliminates the hemodynamic disturbance and restores physiological hemodynamic and pressure conditions, but at the same time it unavoidably evokes a pressure difference between the femoral vein and the incompetent superficial veins in the thigh during calf pump activity. The pressure difference increases flow and enhances fluid shear stress on the endothelium in pre-existing minor communicating channels between the femoral vein and the saphenous system in the thigh, which triggers release of biochemical agents nitride oxide and vascular endothelial growth factor; the consequence is enlargement (vascular remodeling) of the communicating channels, and ultimately reflux recurrence. Hence, the abolition of saphenous reflux creates preconditions for the comeback of the previous pathological situation. This phenomenon-starting the same trouble while fixing the problem-has been called hemodynamic paradox; is explains why varicose vein and reflux recurrence can occur after any mode of therapy.

Sex steroid hormones are not altered in great saphenous veins after varicose vein treatment in male patients

OBJECTIVE

The objective of this study was to assess differences in blood samples (sex steroid hormone levels and blood counts) before and after surgical treatment of incompetent great saphenous veins (GSV) in males.

METHODS

Antecubital vein and GSV blood samples were taken from 11 men with varicose veins and GSV reflux before and after treatment. Six patients were treated with high ligation, stripping and phlebectomy. Five patients were treated with endoluminal radiofrequency ablation and phlebectomy. After a four-year follow-up period (FU) cubital vein and GSV blood samples were taken again.

RESULTS

In men with varicose veins, significantly higher (P < 0.05) serum testosterone (median 25.18 nmol/L, range 8.82-225.1) and oestradiol (median 179 pmol/L, range 79-941) levels were found in the saphenous vein samples before and after the FU (testosterone 18.8 nmol/L, range 7.96-83.1, oestradiol 171 pmol/L range 125-304) compared with the cubital vein samples before therapy (testosterone 15.72 nmol/L, range 8.36-23.29; oestradiol 84 pmol/L, range 41-147) and after the FU (testosterone 14.5 nmol/L, range 6.10-22.2, oestradiol 117 pmol/L, range 95-165). After the FU, one patient demonstrated recurrent varicose veins with groin neovascularization. Another presented with axial reflux of the anterior accessory saphenous vein. Further differences in blood counts and serum androstenedione levels between the upper and lower extremities were not detected.

CONCLUSION

The differences between testosterone and oestradiol levels in the leg veins compared with the cubital veins persist after treating men with refluxing saphenous veins. These results suggest that local hormone regulation may be different between leg and arm veins in men with varicose veins.

Calf pump activity influencing venous hemodynamics in the lower extremity

Calf muscle pump is the motive force enhancing return of venous blood from the lower extremity to the heart. It causes displacement of venous blood in both vertical and horizontal directions, generates ambulatory pressure gradient between thigh and lower leg veins, and bidirectional streaming within calf perforators. Ambulatory pressure gradient triggers venous reflux in incompetent veins, which induces ambulatory venous hypertension in the lower leg and foot. Bidirectional flow in calf perforators enables quick pressure equalization between deep and superficial veins of the lower leg; the outward (into the superficial veins) oriented component of the bidirectional flow taking place during calf muscle contraction is no pathological reflux but a physiological centripetal flow streaming via great saphenous vein into the femoral vein. Calf perforators are communicating channels between both systems making them conjoined vessels; they are not involved in the generation of pathological hemodynamic situations, nor do they cause ambulatory venous hypertension. The real cause why recurrences develop has not as yet been cleared. Pressure gradient arising during calf pump activity between the femoral vein and the saphenous remnant after abolition of saphenous reflux triggers biophysical and biochemical events, which might induce recurrence. Thus, abolition of saphenous reflux removes the hemodynamic disturbance, but at the same time it generates precondition for reflux recurrence and for the comeback of the previous pathological situation; this chain of events has been called hemodynamic paradox.

Update on endovenous radio-frequency closure ablation of varicose veins

Until recent years, the gold standard for treatment of truncal varicose veins has been high ligation and stripping of the saphenous vein. In the course of the last decade, new minimally invasive techniques based on endothermal ablation are progressively supplanting conventional surgery in the treatment of varicose veins. The endovenous treatment of varicose veins has been developed to reduce complications associated with conventional surgery and to improve quality of life. Radio frequency ablation (RFA) available since 1999 is now established as a safe and efficacious treatment for the ablation of refluxing saphenous veins. Among the emerging therapies, RFA with VNUS ClosureFAST is promising because it has eliminated almost all disadvantages associated with conventional surgery by "stripping" (bruises, scars, ecchymosis, inguinal recurrence, neovascularization, and mainly, prolonged incapacity) with an immediate occlusion rate close to 100%. When it is compared with endovenous laser ablation, RFA technology is associated with less postprocedural pain, less ecchymosis and tenderness, and better quality of life (QOL) measures. The aim of this article is to summarize the available evidence in the RFA treatment of varicose veins.

Clinical and technical outcomes from a randomized clinical trial of endovenous laser ablation compared with conventional surgery for great saphenous varicose veins

Background

This report describes the clinical effectiveness and recurrence rates from a randomized trial of endovenous laser ablation (EVLA) and surgery for varicose veins.

Methods

Some 280 patients were randomized equally using sealed opaque envelopes to two parallel groups: surgery and EVLA. Inclusion criteria included symptomatic disease secondary to primary, unilateral, isolated saphenofemoral junction incompetence, leading to reflux into the great saphenous vein (GSV). Outcomes were: technical success, recurrent varicose veins on clinical examination, patterns of reflux on duplex ultrasound examination, and the effect of recurrence on quality of life, assessed by the Aberdeen Varicose Vein Questionnaire (AVVQ). Assessments were at 1, 6, 12 and 52 weeks after the procedure.

Results

Initial technical success was greater following EVLA: 99·3 versus 92·4 per cent (P = 0·005). Surgical failures related mainly to an inability to strip the above-knee GSV. The clinical recurrence rate at 1 year was lower after EVLA: 4·0 versus 20·4 per cent (P &lt; 0·001). The number of patients needed to treat with EVLA rather than surgery to avoid one recurrence at 1 year was 6·3 (95 per cent confidence interval 4·0 to 12·5). Twelve of 23 surgical recurrences were related to an incompetent below-knee GSV and ten to neovascularization. Of five recurrences after EVLA, two were related to neoreflux in the groin tributaries and one to recanalization. Clinical recurrence was associated with worse AVVQ scores (P &lt; 0·001).

Conclusion

EVLA treatment had lower rates of clinical recurrence than conventional surgery in the short term. Registration number: NCT00759434 (http://www.clinicaltrials.gov).

Late follow-up of a randomized trial of routine duplex imaging before varicose vein surgery

Background

Routine preoperative duplex examination led to an improvement in results 2 years after surgery for primary varicose veins. The aim of the present study was to evaluate the impact of preoperative duplex imaging after 7 years, in relation to other risk factors for varicose vein recurrence.

Methods

Patients with primary varicose veins were randomized to operation with (group 1), or without (group 2) preoperative duplex imaging. The same patients were invited to attend follow-up with interview, clinical examination and duplex imaging. Quality of life (QoL) was measured with the Short Form 36 questionnaire.

Results

Some 293 patients (343 legs) were included initially; after 7 years 227 were interviewed, or their records reviewed: 114 in group 1 and 113 in group 2. One hundred and ninety-four legs (95 in group 1 and 99 in group 2) were examined clinically and with duplex imaging. Incompetence was seen at the saphenofemoral junction and/or saphenopopliteal junction in 14 per cent of legs in group 1 and 46 per cent in group 2 (P &lt; 0·001). QoL was similar in both groups. After a mean follow-up of 7 years (and including patients who underwent surgery after the review), 15 legs in group 1 needed reoperation and 38 in group 2 (P = 0·001).

Conclusion

Routine preoperative duplex imaging improved the results of surgery for primary varicose veins for at least 7 years. Registration number: NCT01195623 (http://www.clinicaltrials.gov).

Great saphenous varicose vein surgery without saphenofemoral junction disconnection

Background

The aim of this case–control study was to determine whether preoperative duplex imaging could predict the outcome of varicose vein surgery without saphenofemoral junction (SFJ) disconnection. The duplex protocol included a reflux elimination test (RET) and assessment of the competence of the terminal valve of the femoral vein.

Methods

One hundred patients with chronic venous disease who had a positive RET result and an incompetent terminal valve were compared with 100 patients matched for age, sex, clinical class (Clinical Etiologic Anatomic Pathophysiologic (CEAP) class C2–C6) and disease duration, but who had a positive RET result and a competent terminal valve. All patients underwent ligation and proximal avulsion of the incompetent tributaries from the great saphenous vein trunk without SFJ disconnection. Clinical and duplex follow-up lasted for 3 years, and included Hobbs' clinical score.

Results

Of legs with a competent terminal valve, 100 per cent were rated as cured (Hobbs' class A or B) and 14·0 per cent developed recurrent varices. Patients with an incompetent terminal valve had significantly worse results: 29·0 per cent had Hobbs' class A or B and 82·0 per cent developed recurrence (P &lt; 0·001).

Conclusion

Preoperative duplex assessment of the terminal valve could be used to identify patients suitable for varicose vein surgery without the need for SFJ disconnection.

Endovenous laser ablation as a treatment for postsurgical recurrent saphenous insufficiency

The purpose of this study was to investigate the safety and efficacy of endovenous laser ablation as a treatment for recurrent symptomatic saphenous insufficiency occurring after saphenous vein ligation and stripping. A single-center retrospective review of patients who received endovenous laser ablation as a treatment for recurrent symptomatic saphenous insufficiency after ligation and stripping between November 2003 and October 2006 was performed. Fifty-six insufficient saphenous systems were identified in 38 patients. Follow-up consisted of a clinical examination in all patients as well as selective lower-extremity duplex ultrasound as clinically indicated. All 38 patients demonstrated complete closure of the insufficient saphenous vein by clinical examination and/or duplex ultrasound evaluation. Preoperative symptoms resolved after treatment in all 38 patients. No major complications were identified. Endovenous laser ablation of recurrent symptomatic saphenous venous insufficiency is a safe and effective treatment in patients who develop recurrent symptoms after saphenous vein ligation and stripping.

Pathogenesis of primary varicose veins

BACKGROUND

Valvular incompetence and reflux are common features of primary varicose veins, and have long been thought to be their cause. Recent evidence, however, suggests that changes in the vein wall may precede valvular dysfunction.

METHODS

A literature search was performed using PubMed and Ovid using the keywords 'varicose vein wall changes', 'pathogenesis', 'aetiology' and 'valvular dysfunction'. Articles discussing the pathophysiology of complications of varicose veins, such as ulceration, recurrence, thrombophlebitis and lipodermatosclerosis, were excluded.

RESULTS AND CONCLUSION

Positive family history, age, sex and pregnancy are important risk factors for varicose vein formation. Areas of intimal hyperplasia and smooth muscle cell proliferation are often noted in varicose veins, although regions of atrophy are also present. The total elastin content in varicose as opposed to non-varicose veins is reduced; changes in overall collagen content are uncertain. Matrix metalloproteinases (MMPs), including MMP-1, MMP-2, MMP-3, MMP-7 and MMP-9, and tissue inhibitor of metalloproteinase (TIMP) 1 and TIMP-3 are upregulated in varicose veins. Activation of the endothelium stimulates the recruitment of leucocytes and the release of growth factors, leading to smooth muscle cell proliferation and migration. Dysregulated apoptosis has also been demonstrated in varicose veins. An understanding of the pathophysiology of varicose veins is important in the identification of potential therapeutic targets and treatment strategies.

Validity of duplex-ultrasound in identifying the cause of groin recurrence after varicose vein surgery

INTRODUCTION

Often groin recurrences after varicose vein surgery are diagnosed and classified with the help of a duplex ultrasound scan. There are, however, no studies indicating if duplex ultrasound scans can reliably distinguish between the different forms of recurrent vessels, ie, neovascularization or a residual stump. To address this issue, we have conducted a prospective study in which ultrasound scan assessment of groin recurrences was compared to the histological classification of the recurrent groin veins.

MATERIALS AND METHODS

All patients undergoing redo-surgery for symptomatic groin recurrences after previous stripping of the greater saphenous vein (GSV) during a 1-year period (May 2006-May 2007) were included in the study. Preoperatively, all patients had a duplex-ultrasound scan examination of the groin vessels. Based on the duplex scan findings, the recurrent veins in the groin were classified as either a residual stump or neovascularization. During the redo-surgery, a specimen of the recurrent groin veins was obtained and underwent histologic evaluation. Based on histologic criteria, the recurrence was also classified as a residual stump or neovascularization.

RESULTS

During the 1-year study period, 125 groin recurrences in 95 consecutive patients (74 female, 21 male, mean age 58.7 years, standard deviation [SD] 10.3 years) were included. In the 119 cases where both duplex-ultrasound scan and histological evaluation were available, a residual stump was seen at the histological examination in 80.7% of cases, a neovascularization in 10.9% of cases, and a combination of both entities in 8.4% of cases. Duplex-ultrasound scan classified the recurrent groin veins as a residual stump in 68.1% of cases, as neovascularization in 26.1%, and as a combination of both in 5.8% of cases. With histological classification as the gold-standard, duplex ultrasound scans reached a sensitivity of 77.1% and a positive predictive value of 91.4% in correctly identifying a residual stump as the cause of recurrence. For the correct classification of neovascularization, sensitivity was 61.5% and the positive predictive value 25.8%, while a combination of both was recognized with a sensitivity of 10% and a positive predictive value of 14.3%.

CONCLUSION

While duplex-ultrasound scan is a reliable tool to diagnose groin recurrences after varicose vein surgery, its validity in classifying the different types of recurrent groin vessels is limited. Especially the correct identification of neovascularization which is poor with a sensitivity of 62% and a positive predictive value of 26%. Histological examination should still be regarded as the gold-standard when trying to differentiate between different types of groin recurrences.

Primary chronic venous disorders

Primary chronic venous disorders, which according to the CEAP classification are those not associated with an identifiable mechanism of venous dysfunction, are among the most common in Western populations. Varicose veins without skin changes are present in about 20% of the population while active ulcers may be present in as many as 0.5%. Primary venous disorders are thought to arise from intrinsic structural and biochemical abnormalities of the vein wall. Advanced cases may be associated with skin changes and ulceration arising from extravasation of macromolecules and red blood cells leading to endothelial cell activation, leukocyte diapedesis, and altered tissue remodeling with intense collagen deposition. Laboratory evaluation of patients with primary venous disorders includes venous duplex ultrasonography performed in the upright position, occasionally supplemented with plethysmography and, when deep venous reconstruction is contemplated, ascending and descending venography. Primary venous disease is most often associated with truncal saphenous insufficiency. Although historically treated with stripping of the saphenous vein and interruption and removal of major tributary and perforating veins, a variety of endovenous techniques are now available to ablate the saphenous veins and have generally been demonstrated to be safe and less morbid than traditional procedures. Sclerotherapy also has an important role in the management of telangiectasias; primary, residual, or recurrent varicosities without connection to incompetent venous trunks; and congenital venous malformations. The introduction of ultrasound guided foam sclerotherapy has broadened potential indications to include treatment of the main saphenous trunks, varicose tributaries, and perforating veins. Surgical repair of incompetent deep venous valves has been reported to be an effective procedure in nonrandomized series, but appropriate case selection is critical to successful outcomes.

Randomised Trial of Polytetrafluoroethylene Patch Insertion for Recurrent Great Saphenous Varicose Veins

OBJECTIVES

The aim of this study was to assess the possible value of a polytetrafluoroethylene (PTFE) patch in the treatment of recurrent varicose veins.

METHODS

Thirty-one patients (40 legs) with recurrent saphenofemoral junction incompetence were randomised to redo saphenofemoral ligation and great saphenous vein stripping with, or without the insertion of a PTFE patch over the ligated junction. Patients underwent assessment preoperatively, and at 6 weeks, 1 year and 2 years postoperatively with clinical examination, duplex imaging and completion of the Aberdeen Varicose Vein Symptom Severity Score (AVVSSS).

RESULTS

A total of 27 patients (32 legs) attended for assessment at 6 weeks, 25 patients (30 legs) at 1 year and 27 patients (32 legs) at 2 years. At 6 weeks, seven legs (22%) had an area of cutaneous numbness; all but one had resolved by 1 year. Four legs (13%) developed a groin infection, which required antibiotics, 2 had a groin haematoma and four had a seroma, all of which resolved spontaneously. The overall complication rate was 35% (11 legs), with no statistically significant difference between the groups. Four of 16 legs without a patch and five of 16 legs with a patch developed neovascularisation at the saphenofemoral junction on duplex imaging by two years postoperatively. Two cases of neovascularisation in the patch group and one in the no patch group directly resulted in clinical recurrence (p=1.0). There was an improvement in patients' AVVSSS two years postoperatively (p<0.03), that was similar in both groups.

CONCLUSIONS

In this study, insertion of a PTFE patch did not affect the rate of perioperative complications and it did not appear to contain neovascularisation.

[Primary varicosis]

The classic varicose vein operation still represents the "gold standard" in the operative therapy of varicose veins. The results of this procedure in view of perioperative complications are very good, with the incidence of perioperative deep venous thrombosis varying between 0.05% and 0.1%. Recurrence rates between 6% and 60% are published. However, the true recurrence rate is unknown since an exact definition of recurrent varicosis is still lacking. In recurrent varices it is essential to distinguish between disease progression, including neorevascularisation, and technical errors. Endovascular procedures for elimination of the superficial venous system - radiofrequency obliteration and endovenous laser therapy - meanwhile have established themselves as alternative, minimally invasive procedures. The perioperative complication rate of endovenous procedures is very low and comparable to that of the classic operation. Good results, with occlusion rates of the treated vein around 87% to 93% up to 2 years postoperatively, have been published for both endovenous laser therapy and radiofrequency obliteration. For the latter, 5-year results were published, with occlusion of the treated vein in 87%. Results in the literature for radiofrequency are better documented than for endovenous laser treatment because there are now five prospective randomised trials for the former and most publications for endovenous laser treatment are single-center experiences. The advantage of endovenous procedures, especially radiofrequency obliteration, over the classic operation is the lower rate of perioperative pain and better quality of life. The spectrum of operative treatment methods of the superficial venous system has increased tremendously due to new technical developments. For the surgeon this implies the necessity of informing patients conscientiously about the pros and cons and available results of each procedure, and carefully weighing which methods are at the time best for the patient.

Results and significance of colour duplex assessment of the deep venous system in recurrent varicose veins

OBJECTIVES

To establish the status of the deep veins in patients presenting with recurrent varicose veins and the effect on treatment decisions.

DESIGN

Retrospective clinical series.

MATERIALS AND METHODS

Duplex examination of 570 consecutive patients (843 limbs) presenting with recurrent varicose veins (CEAP C2-4).

RESULTS

Approximately one third of these patients (34.8%:294 limbs) had no deep venous abnormality; 173 limbs with superficial vein abnormalities only had great and/or small saphenous junction incompetence, the remaining 121 legs had abnormal perforating or communicating veins. Deep venous abnormalities were found in 549 limbs with evidence of persisting deep venous obstruction in only 20. Deep venous incompetence was found in 529 limbs (62.7% of all legs). However three segment incompetence (common femoral, femoral and popliteal veins) was found in only 181 legs (21.4%), two segment incompetence in 137 (16.2%) and one segment incompetence in 211 (25%).

CONCLUSIONS

Deep vein incompetence is common in patients with recurrent varicose veins. Deep venous obstruction is an infrequent finding but total deep venous reflux (three segment incompetence) affects just under one quarter of all limbs with recurrent varicose veins. Ablation or surgery of varicose veins in this group may be less effective. Patients should be advised of the implications of this finding.

Strip-track revascularization after stripping of the great saphenous vein

Background

Varicose veins that recur after standard high tie and strip are often associated with venous reflux in the thigh, as shown by duplex ultrasonography. The aim of this study was to look for evidence of revascularization in the strip track after great saphenous vein (GSV) stripping.

Methods

A consecutive series of patients with duplex-proven great saphenous varicose veins underwent saphenofemoral ligation with intraoperative confirmation of successful stripping. Duplex ultrasonography was performed 1 week and 1 year after surgery. The presence and extent of haematoma was noted, as was any venous reflux within the strip track.

Results

At 1 year, four (6 per cent) of 70 patients had complete revascularization of the strip track and 12 (17 per cent) had partial revascularization, all with duplex-proven reflux. Partial revascularization was in the distal third of the track in six legs (9 per cent of the 70 patients), in the distal half in five (7 per cent) and was almost complete in one leg (1 per cent). All patients with revascularization had a significant strip-track haematoma at 1 week after surgery.

Conclusion

Revascularization of the GSV strip track after stripping was found in 23 per cent of patients after 1 year; all of these had a postoperative haematoma in the track.