Endovascular Repair for Abdominal Aortic Aneurysm
Endovascular repair is a procedure to fix an Reference aortic aneurysm Opens New Window in the abdomen. It's called endovascular because a doctor repairs the aneurysm from the inside of the damaged blood vessel (the aorta).
This procedure is relatively new compared to the traditional open surgery to repair an aneurysm. It is a minimally invasive procedure. Local or general anesthesia might be used.
The doctor will make one or two cuts (incisions) in the groin area. Small flexible tubes, called catheters, are inserted into arteries in the groin area. The doctor puts dye into the arteries. The dye will make your aorta show up on X-ray pictures during the procedure.
The doctor uses the catheters to move a man-made tube, called a stent graft, through the arteries until it reaches the aorta. The doctor expands the graft inside of the aneurysm. Then the doctor attaches the graft to the blood vessel. When the graft is in place, the doctor will take out the catheters and the wires. He or she will use stitches to close the incisions in the groin area. After the procedure, blood passes through the graft in the aorta without pushing on the aneurysm.
What To Expect After Treatment
You will probably spend 1 to 3 days in the hospital. You can expect the cuts (incisions) in your groin to be sore for 1 to 2 weeks.
You may feel more tired than usual for 1 to 2 weeks after the procedure. You may be able to do many of your usual activities after 1 to 2 weeks. But you will probably need up to 4 weeks to fully recover. You may need to take at least 1 to 2 weeks off from work. It depends on the type of work you do and how you feel.
You will need regular tests, such as a Reference CT scan Opens New Window or Reference ultrasound Opens New Window, to check for problems with the graft.Reference 1 You might have the test one or more times in the first year after this procedure. Then you will have a test once a year for the rest of your life.Reference 2
Why It Is Done
Repairing an aortic aneurysm is typically recommended if the aneurysm is at risk of bursting open (rupturing). Aortic aneurysms that are large, are causing symptoms, or are rapidly getting bigger are considered at risk of rupturing.
In men, repair is typically recommended for an abdominal aortic aneurysm that is 5.5 cm or larger in diameter. In women, repair may be recommended for smaller aneurysms.Reference 3
Your doctor will work with you to decide which type of repair surgery—open or endovascular—is right for you. Your doctor will check:Reference 1
- The shape and location of your aneurysm.
- Your age and overall health, to make sure that you are healthy enough for a surgery.
- If you are able and willing to have the yearly tests that are needed after endovascular repair. Testing is done less often after an open repair.
How Well It Works
When an aortic aneurysm is at risk of rupturing, or bursting open, the benefits of repairing the aneurysm can outweigh the risks. Repairing the aneurysm lowers the risk of rupture and can help a person live longer. Repairing a smaller aneurysm, which doesn't have as high a risk of rupture, does not help a person live longer.Reference 4
Overall, open repair surgery and endovascular repair have similar outcomes and long-term benefits.Reference 1
An endovascular repair isn't an open surgery. So it doesn't have the risks or complications of a major surgery, and the recovery time is shorter. But there is a higher risk that you will need another procedure or surgery.Reference 5
The risk of dying during or soon after an endovascular repair is lower than the risk from open surgery. For an endovascular repair, about 1 out of 100 people die during surgery or within 30 days after surgery.Reference 6 But after a few years, people who have open surgery live as long as people who had endovascular repair.Reference 7 Experts are still studying the long-term effects of endovascular repair.
Complications include bleeding, infection, and problems with the stent graft. A common complication is a leak around the stent graft. About 15 out of 100 people have a problem that requires a second procedure or surgery.Reference 8
What To Think About
When making a decision about repairing an aortic aneurysm, you and your doctor will consider the benefits compared to the risks. For some people, the endovascular repair procedure isn't possible, but open surgery might be an option. For more information, see Reference Open Repair Surgery for Abdominal Aortic Aneurysm.
The U.S. Food and Drug Administration (FDA) gave a premarket approval application to stent grafts in 1999. In 2001, the FDA issued a Public Health Notification for two of these devices: the Ancure System (Guidant) and the AneuRx System (Medtronic AVE). Placement problems, which were associated with damaged artery walls, were reported for the Ancure System. Problems such as leaking, slipping out of place, suture breaks, fabric tears, and poor graft placement were reported for the AneuRx system. Because only a small number of people with these devices have had these problems, the devices remain in use. But the Ancure System has not been made since 2003. If you have one of these systems implanted, talk to your doctor.
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Hirsch AT, et al. (2006). ACC/AHA 2005 practice guidelines for the management of patients with peripheral arterial disease (lower extremity, renal, mesenteric, and abdominal aortic): A collaborative report from the American Association for Vascular Surgery/Society for Vascular Surgery, Society for Cardiovascular Angiography and Interventions, Society for Vascular Medicine and Biology, Society of Interventional Radiology, and the ACC/AHA Task Force on Practice Guidelines (Writing Committee to Develop Guidelines for the Management of Patients With Peripheral Arterial Disease): Endorsed by the American Association of Cardiovascular and Pulmonary Rehabilitation; National Heart, Lung, and Blood Institute; Society for Vascular Nursing; TransAtlantic Inter-Society Consensus; and Vascular Disease Foundation. Circulation, 113(11): e463–e654.