Abstract:
:The aim of this international multicenter trial was to evaluate the effects of a new surgical device (Gore External Valve Support-EVS) and technique for external valvuloplasty of the long saphenous vein (LSV). Patients with superficial venous disease and venous hypertension due to pure superficial venous incompetence were randomized into two treatment groups, the first treated with "conventional treatment" (ligation or stripping) and the second with external valvuloplasty with the EVS. Patients with uncomplicated varicose veins within the age range of 35-65 years were included. Incompetence with presence of functional cusps at the saphenofemoral junction (SFJ), with vein dilatation were the main inclusion criteria. The EVS comprised of a GORE-TEX patch material (including a nitinol frame) that is placed around the vein, producing a reduction in the caliber of the vein. Also the vein section becomes elliptical. These combined actions are aimed to reduce incompetence, allowing a better closure of the cusps. The EVS was placed at the SFJ after limited dissection of the vein and ligation of collaterals. The procedure was randomized as an alternative to simple ligation or stripping (according with the procedure commonly used in the center). The associated ligation of distal incompetent veins was allowed. The main outcome measures of the study were evaluated by color-duplex (morphologic findings and evaluation of reflux) and with ambulatory venous pressure (AVP) or air-plethysmography (APG). Main endpoints of the first year of the study and main subject of this report (mainly concerning safety within the first year of follow-up) were considered presence/absence of reflux; patency of the veins; mobility/function of vein cusps; occurrence of thrombosis; tolerability of the device; and increased complexity and operating time needed for the EVS. At 1 year 30 patients had been randomized (14 EVS implanted, 16 controls). Reflux was absent in all EVS patients, all treated veins were patent, and all cusps were mobile. No thrombosis had been observed and the tolerability of the device was very good. The increased complexity required by placing the EVS was limited (5-12 minutes more). In conclusion results of the first year show efficacy and tolerability of the EVS. In selected patients (superficial LSV incompetence, reflux-dilatation, functional SFJ cusps, incompetence mainly due to enlargement of the vein), the EVS could be an effective alternative to "destructive" ligation and/or stripping of the vein. Prolonged follow-up will indicate the clinical potentials of the EVS.
journal_name
Angiologyjournal_title
Angiologyauthors
Incandela L,Belcaro G,Nicolaides AN,Agus G,Errichi BM,Cesarone MR,De Sanctis MT,Ricci A,Sabetai M,Mondani P,De Angelis R,Bavera P,Griffin M,Geroulakos Gdoi
10.1177/000331970005100806subject
Has Abstractpub_date
2000-08-01 00:00:00pages
S39-52issue
8 Pt 2eissn
0003-3197issn
1940-1574journal_volume
51pub_type
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