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Percutaneous Aortic Aneurysm Repair by Stent Grafts

    This procedure is used to treat aneurysms of the abdominal aorta (AAA).

    Weakening of the wall of the aorta can lead to a dilatation of the vessel or aneurysm. Aneurysms may rupture, causing internal bleeding or death.
    People who are older than 50 years, normal infrarenal aortic diameter will be 1.5 cm in women and 1.7 cm in men. A dilatation greater than 1.5 times the normal diameter (>3cm) is considered aneurysmal.
    People with smaller aneurysm are considered as unfit for surgery may be managed with medical treatment alone.
    AAA repair is usually recommended, when the aneurysm reaches 5.5 cm in maximal diameter or expands by more than 0.6 to 0.8 cm per year.
    The two primary methods of AAA repair are open surgical and endovascular. The standard invasive treatment for abdominal aortic aneurysm is open surgical repair and to maintain or allow normal blood flow, the aneurysm is cut open and a graft is sewn in above and below weakened area.
    Stent-graft placement is a minimally invasive procedure alternative to open surgery. In this minimally invasive technique, the graft is mounted on a stent, which is inserted into the aorta via a catheter in the femoral artery. The stent is opened under X-ray guidance, wedging the graft across the aneurysm.

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