Aortoiliac bypass is a surgical procedure used to treat peripheral artery disease (PAD) by bypassing blocked or narrowed arteries in the aorta and iliac arteries, which supply blood to the lower extremities. The procedure involves using a graft to reroute blood flow around the blockage, improving circulation to the legs.

Aortoiliac bypass is typically recommended for patients with severe PAD or those who experience symptoms such as leg pain, ulcers, or poor wound healing due to insufficient blood flow. This surgery improves blood flow, alleviates symptoms, and helps prevent further complications like tissue damage or gangrene.