Outcome of endovascular reintervention for significant stenosis at infrainguinal bypass anastomoses

ObjectiveThe durability of an infrainguinal bypass may be hampered by development of stenosis at the anastomoses. We describe the patency of percutaneous transluminal angioplasty (PTA) of these anastomotic stenoses.MethodsAny venous or prosthetic infrainguinal bypass with a hemodynamically significant anastomotic stenosis, symptomatic or asymptomatic, was considered a bypass at risk (BAR) for occlusion. All BARs undergoing PTA in two large vascular referral centers between January 2005 and December 2010 were retrospectively reviewed. Procedural success was defined as