Endovascular Repair of Abdominal Aortic Aneurysm
(Minimally Invasive Repair of Abdominal Aortic Aneurysm; EVAR)
by Deanna M. Neff, MPH
The aorta is the largest artery in the body. The abdominal part of the aorta is located below the diaphragm. It carries blood to the abdomen, pelvis, and legs. Sometimes, the walls of the aorta weaken and bulge in one area. This is called an abdominal aortic aneurysm (AAA). When the aneurysm reaches a certain size, it may need to be repaired. Endovascular repair of an AAA (EVAR) is done from the inside of the artery. A stent graft is inserted into the area to strengthen it.
Reasons for Procedure TOP
This procedure is often done to repair AAA when the aneurysm:
EVAR is now the preferred method to treat AAA. EVAR can result in less pain, shorter hospital stay, fewer complications, and faster recovery time compared to open surgery. However, closer follow-up over many years is needed.
Possible Complications TOP
Your doctor will review a list of possible complications, which may include:
Before your procedure, talk to your doctor about ways to manage factors that may increase your risk of complications such as:
Your risk of complications may also be increased if you have had:
What to Expect TOP
Prior to Procedure
Your doctor may:
Before the procedure:
Your doctor may use:
Description of the Procedure TOP
You will lie on your back. Small incisions will be made in both sides of the groin. Thin tubes called catheters will be inserted into the blood vessels and threaded up toward the aneurysm. Contrast dye will be injected through the catheters. A stent graft will be guided to the site. The graft will be placed into the weakened area and extended into both pelvic arteries. X-ray images will be used to guide each step. Once the graft is in place, the catheters will be removed. The incisions will be closed. Sterile bandages will be applied.
Immediately After Procedure TOP
You will be taken to the intensive care unit (ICU). If you have a breathing tube, it will be removed. Your vital signs will be closely monitored.
How Long Will It Take? TOP
About 2-3 hours
How Much Will It Hurt? TOP
Anesthesia will prevent pain during the procedure. Your doctor will give you medication to manage the pain during the recovery process. There is little discomfort from the groin incisions.
Average Hospital Stay TOP
The usual length of stay is 1-2 days. Your doctor may choose to keep you longer if needed.
Post-procedure Care TOP
At the Hospital
At the hospital, you will:
During your stay, the hospital staff will take steps to reduce your chance of infection such as:
There are also steps you can take to reduce your chances of infection such as:
When you return home, do the following to help ensure a smooth recovery:
Call Your Doctor TOP
After you leave the hospital, contact your doctor if any of the following occurs:
Call for medical help or go to the emergency room right away if you have:
If you think you have an emergency, call for emergency medical services right away.
American Heart Association
Society for Vascular Surgery
Canadian Cardiovascular Society
Canadian Society for Vascular Surgery
Abdominal aortic aneurysm (AAA). EBSCO DynaMed website. Available at:
...(Click grey area to select URL)
Updated December 3, 2014. Accessed March 11, 2015.
Endovascular repair of thoracic aortic aneurysms. Cleveland Clinic website. Available at:
...(Click grey area to select URL)
Accessed March 11, 2015.
Fotis T, Mitsos A, Perdikides T, et al. Regional Anesthesia versus general anesthesia in endovascular aneurism repair: the surgical nursing interventions. British Journal of Anesthetic and Recovery Nursing. 2009;10(1):11-14.
Last reviewed March 2015 by Marcin Chwistek, MD
Last Updated: 1/27/2014