Circulation journal : official journal of the Japanese Circulation Society · 2016
Raison d'etre of Tibial Artery Bypass for Intermittent Claudication in the Era of Endovascular Therapy.
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Mii Shinsuke, Tanaka Kiyoshi, Kyuragi Ryoichi, Kuma Sosei, Kodama Akio, Fukunaga Ryota, Masaki Ichiro, Okazaki Jin, Eguchi Daihiko, Yamaoka Terutoshi, Mori Akira, Guntani Atsushi, Okadome Jun
Аннотация
BACKGROUND: There is currently no positive opinion regarding infrapopliteal revascularization for intermittent claudication (IC) in any guidelines. The aim of this study was to analyze the outcomes of infragenicular bypass and verify the adequacy of tibial artery bypass for IC.
METHODS AND RESULTS: Over a 21-year period, 58 below-knee popliteal artery (BKPOP) bypasses and 35 tibial artery bypasses were performed for IC caused by arteriosclerosis obliterans. Graft patency and major amputation (MA) were examined as primary endpoints and the predictor of each outcome was estimated by multivariate analysis. The primary patency (PP), secondary patency (SP), and freedom from MA (ffMA) rates of a prosthetic/vein graft in all cases at 5 years were 19/68%, 22/86%, and 78/100% (P<0.01 in all). Limited to vein graft cases, PP and SP rates of popliteal/tibial bypass at 5 years were 73/62% (P=0.32) and 92/80% (P=0.22), respectively. In tibial artery bypass with a vein graft, the PP and SP rates of a single saphenous vein/spliced vein graft at 5 years were 71/46% (P=0.11) and 89/61% (P=0.03). A prosthetic graft was a common negative predictor for graft patency and MA by multivariate analysis.
CONCLUSIONS: Tibial artery bypass is an acceptable treatment option for IC when a single saphenous vein can be harvested as a graft conduit. (Circ J 2016; 80: 1460-1469).
METHODS AND RESULTS: Over a 21-year period, 58 below-knee popliteal artery (BKPOP) bypasses and 35 tibial artery bypasses were performed for IC caused by arteriosclerosis obliterans. Graft patency and major amputation (MA) were examined as primary endpoints and the predictor of each outcome was estimated by multivariate analysis. The primary patency (PP), secondary patency (SP), and freedom from MA (ffMA) rates of a prosthetic/vein graft in all cases at 5 years were 19/68%, 22/86%, and 78/100% (P<0.01 in all). Limited to vein graft cases, PP and SP rates of popliteal/tibial bypass at 5 years were 73/62% (P=0.32) and 92/80% (P=0.22), respectively. In tibial artery bypass with a vein graft, the PP and SP rates of a single saphenous vein/spliced vein graft at 5 years were 71/46% (P=0.11) and 89/61% (P=0.03). A prosthetic graft was a common negative predictor for graft patency and MA by multivariate analysis.
CONCLUSIONS: Tibial artery bypass is an acceptable treatment option for IC when a single saphenous vein can be harvested as a graft conduit. (Circ J 2016; 80: 1460-1469).