The saphenous vein graft (SVG) has been the bypass conduit of choice for over 50 years, but paucity usable autologous remains as limiting factor. We hypothesize transplanted allografts can be used patients with limb-threatening ischemia. A major factor to patency a SVG is immunologic remodeling process, promoting formation intimal hyperplasia; primary cause stenosis and failure. Our goal evalua...