| aortoiliac bypass | An operation in which a vascular prosthesis is united with the aorta and iliac artery to relieve obstruction of the lower abdominal aorta, its bifurcation, and the proximal iliac branches. (05 Mar 2000) |
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| aortoiliac occlusive disease | Obstruction of the abdominal aorta and its main branches by atherosclerosis. (05 Mar 2000) |