Endovascular surgery is a form of minimally invasive surgery that was designed to access many regions of the body via major blood vessels. Endovascular surgery is a minimally invasive option for treatment of some diseases of the thoracic aorta, most often an aortic aneurysm. Aortic aneurysms can occur as a result of atherosclerotic disease, infection, degenerative change or an inherited condition such as Marfan’s Syndrome. These abnormal dilations or enlargement in the wall of the aorta (the main blood vessel leading away from the heart) are progressive and develop the risk of rupture over time. Treatment involves aggressive control of hypertension and eventual surgical management. Endovascular surgical repair involves the delivery of a covered stent within the diseased aorta through a small incision in the groin. Aneurysms of the aorta in the chest can be treated in this manner in appropriate candidates.