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  • Title: A modified, angioscopically assisted technique for in situ saphenous vein bypass: impact on patency, complications, and length of stay.
    Author: Maini BS, Andrews L, Salimi T, Hendershott TH, O'Mara P.
    Journal: J Vasc Surg; 1993 Jun; 17(6):1041-7; discussion 1047-9. PubMed ID: 8505782.
    Abstract:
    PURPOSE: The impact of preoperative saphenous vein mapping and intraoperative angioscopy on the results of in situ saphenous vein bypass is analyzed in this study. METHODS: A new technique developed for in situ saphenous vein bypass (ISVB) was used in 26 patients (group I) and consisted of (1) preoperative duplex scanning and mapping of the saphenous vein and its tributaries, (2) small incisions for dissecting the proximal and distal arteries and veins, (3) ligation of marked tributaries through small incisions, (4) angioscopically directed incision of venous valves with a flexible-tipped valvulotome, and (5) femoral and distal anastomoses. The results were compared with those of 14 patients (group II) in whom the technique was similar except that venous tributaries were identified angioscopically and then ligated and 24 patients (group III) who underwent standard "open" ISVB through one long incision without angioscopy or vein mapping and in whom valvulotomy was carried out with a rigid valvulotome passed through tributaries. RESULTS: In comparing the results of groups I and III, significant reductions in operative intravenous fluid requirements (1930 ml vs 2675 ml; p = 0.04), postoperative length of stay (4.4 days vs 9.1 days; p < 0.001), and wound complications (1 vs 9; p = 0.01) were observed. Angioscopic irrigation fluid volume in group I was less than that in group II (360 ml vs 1014 ml; p < 0.001). At 12 months, the primary graft patency rate in all 64 patients was 91% for femoropopliteal and 89% for femoral-infrapopliteal ISBV and 84% for the 40 patients in groups I and II. CONCLUSIONS: This report demonstrates the effectiveness of our modified technique for ISVB, which helped reduce wound complications and length of stay while satisfactory early graft patency was also maintained.
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