Endovascular surgery is used to treat vascular diseases from inside the blood vessels. A small incision is created to gain access to the diseased area (veins and arteries) inside the body. This technique results in less pain and faster recovery. These are the minimally invasive techniques to repair vascular aneurysms with the help of intravascular sheaths, wires, catheters, balloons, stents and stent grafts. The most common and advanced form of endovascular surgery going on today is an endovascular repair of aortic aneurysms and dissections by use of stent grafts inserted into vasculature via arteries in the groin.