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Objective To determine the efficacy,safety,and 2-year outcome,including patency and limb salvage,of endovascular revascularization in patients with lower extremity atherosclerosis obliterans.Methods From July 2006 to June 2011,274 limbs in 222 patients with lower extremity atherosclerosis obliterans were treated by endovascular revascularization.There were 162 males and 60 females,with the mean age (67.5±11.2) years old.