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  • Stent/grafts designed for percutaneous deployment into the aorta and proximal sections of the iliac arteries. These devices are available in several shapes and materials. Some devices consist of an integral bifurcated (Y-shaped) graft with stents on its ends that includes a larger-diameter section for the aorta and two limbs for the iliac arteries. Other devices are modular systems with self-expanding stents that are inserted by parts - first, one part of the graft stent, including the aortic section and one iliac limb, is introduced through a femoral artery, then the contralateral limb is inserted from the opposite groin and attached to the previously inserted part. Most aortoiliac stent/grafts are used to bypass lower abdominal (under the renal artery) aortic aneurysms without a distal neck, usually also affecting the iliac arteries. Aortic stent/grafts divert the flow of blood away from the aneurysm wall, excluding the aneurysm from circulation. The procedure does not remove the aneurysm but allows it to shrink over time.
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