Endovascular repair is a preferred treatment for many people with an abdominal aortic aneurysm (AAA), and an alternative for some who do not qualify for open surgery.

How an AAA is repaired varies depending on location, which then classifies the procedure as either STANDARD or COMPLEX.

Endovascular repair is less invasive than open surgery because it avoids a large incision in your abdomen or chest; only very small incisions are required. That means you are able to recover more quickly.

In deciding whether to recommend repair your surgeon will consider the size of the aneurysm, its location, how fast it is growing, how complicated it is to repair and your overall health.

STANDARD repair for an aneurysm located below the arteries to the kidney:

• Through a needle puncture or small incision in one or both of your groin arteries and guided by X-ray images, a thin tube (catheter) is inserted and advanced to the aneurysm site.
• A guide wire and an expandable stent graft (a fabric-covered wire frame) are advanced through the thin tube.
• When positioned correctly, the stent graft is allowed to expand within the artery. The wire frame pushes against the healthy portion of the aorta to seal the device in place.
• Once in place, blood flows through the stent graft and cannot enter the aneurysm.
• Some patients may also require a puncture or small incision into an artery in the upper arm.
• The procedure usually takes 1.5–2.5 hours and most patients leave the hospital in 1–5 days.

COMPLEX repair for an aneurysm affecting one or more of the important arteries that branch off the aorta:

• Following the same steps as above, a different type of graft is placed.
• A fenestrated graft gets its name from tiny cutouts that allow the graft to flex and align with the branching of arteries, and also be modified to accommodate your specific anatomy. 
• It is important that the graft fit your anatomy. Sometimes a standard commercially manufactured, FDA-approved device can be used. If you are not eligible for a standard device, you may qualify for a research device that is custom-made specifically for you.
• The procedure usually takes from 3–8 hours.