Aneurysm

Large aortic aneurysms often can be repaired with surgery. During surgery, the weak or damaged portion of the aorta is replaced or reinforced.

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How Is an Aneurysm Treated?

Aortic aneurysms are treated with medicines and surgery. A small aneurysm that's found early and isn't causing symptoms may not need treatment. Other aneurysms need to be treated.

The goals of treatment are to:

• Prevent the aneurysm from growing

• Prevent or reverse damage to other body structures

• Prevent or treat a rupture or dissection

• Allow you to continue to do your normal daily activities

Treatment for aortic aneurysms is based on the size of the aneurysm. Your doctor may recommend routine testing to make sure an aneurysm isn't getting bigger. This method usually is used for aneurysms that are smaller than 5 centimeters (about 2 inches) across.

How often you need testing (for example, every few months or every year) will be based on the size of the aneurysm and how fast it's growing. The larger it is and the faster it's growing, the more often you may need to be checked.

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Medicines

If you have an aortic aneurysm, your doctor may prescribe medicines before surgery or instead of surgery. Medicines are used to lower blood pressure, relax blood vessels, and reduce the risk of rupture. Beta blockers and calcium channel blockers are the medicines most commonly used.

Surgery

Your doctor may recommend surgery if your aneurysm is growing quickly or if it reaches a size linked with an increased risk of rupture or dissection.

The two main types of surgery to repair aortic aneurysms are open abdominal or open chest repair and endovascular repair.

Open Abdominal or Open Chest Repair

The standard and most common type of surgery for aortic aneurysms is open abdominal or open chest repair. It involves a major incision (cut) in the abdomen or chest. General anesthesia is used for this procedure—that is, you will be temporarily put to sleep so you don't feel pain during the surgery.

The aneurysm is removed, and the section of aorta is replaced with a graft made of material such as Dacron® or Teflon.® The surgery takes 3 to 6 hours, and you will remain in the hospital for 5 to 8 days.

It often takes a month to recover from open abdominal or open chest surgery and return to full activity. Most patients make a full recovery.

Endovascular Repair

In endovascular repair, the aneurysm isn't removed. Instead, a graft is inserted into the aorta to strengthen it. This type of surgery is done using catheters (tubes) inserted into the arteries; it doesn't require surgically opening the chest or abdomen.

The surgeon first inserts a catheter into an artery in the groin (upper thigh) and threads it to the aneurysm. Then, using an x ray to see the artery, the surgeon threads the graft (also called a stent graft) into the aorta to the aneurysm.

The graft is then expanded inside the aorta and fastened in place to form a stable channel for blood flow. The graft reinforces the weakened section of the aorta to prevent the aneurysm from rupturing.

Endovascular Repair

The illustration shows the placement of an endovascular stent graft in an aortic aneurysm. In figure A, a catheter is inserted into an artery in the groin (upper thigh). The catheter is threaded to the abdominal aorta, and the stent graft is released from the catheter. In figure B, the stent graft allows blood to flow through the aneurysm.

Endovascular repair reduces recovery time to a few days and greatly reduces time in the hospital. However, doctors can’t repair all aortic aneurysms with this procedure. The location or size of the aneurysm may prevent a stent graft from being safely or reliably placed inside the aneurysm.