Husted explained that the new catheter-based technique is performed entirely through small incisions in the upper thigh, so general anesthesia is often unnecessary. Bech added that surgical blood loss is reduced, and post-operative recovery is much easier and shorter, since there is no painful abdominal incision. Aneurysms are enlarged, bulging, weakened arteries. The abdominal portion of the aorta, the largest artery in the body, is especially prone to aneurysm formation. AAAs grow slowly and silently until they rupture.
Rupture results in death from internal bleeding in most cases.
AAAs are four times more common in men than in women, and are usually detected during x-ray evaluations for unrelated conditions of the abdomen or back. Once an AAA is detected, elective treatment is considered when it reaches a size at which it becomes more likely to rupture. The usual threshold for treatment is a diameter of 5 centimeters. Traditional open repair of AAA consists of replacement of the diseased portion of the aorta with a prosthesis made of a strong synthetic fabric. This tubing is sewn securely in place by hand.