© Copyright 2026 American Medical Association. All rights reserved.
Endovascular repair of an infrarenal abdominal aortic aneurysm or dissection is a minimally invasive surgical procedure aimed at addressing a serious vascular condition. An infrarenal abdominal aortic aneurysm refers to an abnormal dilation or bulging of the abdominal aorta, located below the renal arteries, which can lead to life-threatening complications if not treated. The procedure utilizes specialized prosthetic devices known as aorto-uni-iliac or aorto-unifemoral prostheses. These devices are designed to provide a secure and effective means of reinforcing the weakened section of the aorta and extending into the iliac or femoral arteries on one side. The aorto-uni-iliac prosthesis is specifically tailored for cases where the aneurysm affects a single iliac artery, while the aorto-unifemoral prosthesis is used when the aneurysm involves both the iliac and femoral arteries on one side. The design of these prostheses is similar to that of a standard aorto-aortic tube prosthesis but is longer and tapered to ensure adequate coverage of the defect in the affected arteries. This procedure is performed through a small incision in the groin, allowing for the insertion of catheters and guide wires to facilitate the placement of the prosthesis within the aorta, ultimately restoring normal blood flow and reducing the risk of rupture.
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