Abstract No. 240 - Comparison of patency rates by percutaneous transluminal angioplasty with bypass graft in arteriosclerotic lesions of the superficial femoral artery with special reference to rutherford runoff score

Abstract

Purpose To compare the patency rates by percutaneous transluminal angioplasty (PTA) and bypass surgery (BS) in patients with superficial femoral artery (SFA) arteriosclerotic lesions with special reference to Rutherford runoff score (RRS). Materials and Methods PTA was performed in 26 patients {(male: 18, female: 8, 54-95 years (average 74.1)} and BS was performed in 31 patients {(male: 27, female: 4, 43-83 years (average 67.1)}. Fontaine classification was II/III/IV(4/7/15) in the PTA group and II/III/IV(4/11/16) in the BS group. TASC II classification was B/C/D(1/12/13) in the PTA group and B/C/D(0/0/31) in the BS group. Clinical course, patency rate and limb salvage rate were evaluated and analyzed with the Kaplan-Meier method. Results PTA was technically successful in 25 patients except one and stent deployment was performed in 12 patients. BS included artificial graft (10 cases) and in situ saphenous vein bypass graft (21 cases). Average follow-up period was 13.4 months(0.7-45.9) in PTA group and 14.7 months(1.2-47.1), respectively. The Kaplan- Meier method revealed that survival rate at 2-year was 79.3 % in the PTA group and 72.6 % in the BS group (P=0.94). Although the patent rate at 2-year was 70 % in the PTA group and 78.1 % in the BS group (P=0.29), the patent rate of BS group was superior to those of PTA group among RRS> 5 category (P=0.019). The success of limb salvage rate was 66.2 % in the PTA group and 96 % in the BS group (P=0.023). Conclusion PTA could be recommend for the femoropopliteal atherosclerotic disease in patients with good RRS (