Isolated hypogastric artery revascularization after previous bypass for aortoiliac occlusive disease.

Patients with recurrent buttock claudication and/or impotence occurring after aortoiliac reconstruction, whose resting and postexercise vascular laboratory values are normal, represent an uncommon and poorly recognized problem resulting from occlusion of the bypassed iliac segments and ischemia isolated to the distribution of the hypogastric artery. This paradox and its solution are exemplified by two patients reported herein. In each instance flow was reestablished after thromboendarterectomy of the proximal hypogastric artery by connecting the artery to the functioning bypass.