8/12/2019 Aorta Aneurysm

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Anaortic aneurysm(say "a-OR-tik AN-yuh-rih-zum") is a bulge in a section of the aorta, the body's

mainartery.The aorta carries oxygen-richbloodfrom theheartto the rest of the body. Because the

section with theaneurysmis overstretched and weak, it can burst. If the aorta bursts, it can cause

serious bleeding that can quickly lead to death.

Aneurysms can form in any section of the aorta, but they are most common in the belly area

(abdominal aortic aneurysm ). They can also happen in the upper body (thoracic aorticaneurysm ). Thoracic aortic aneurysms are also known as ascending or descending aortic

aneurysms.

What causes an aortic aneurysm?

The wall of the aorta is normally very elastic. It can stretch and then shrink back as needed to adapt to

blood flow. But some medical problems, such ashigh blood pressureandatherosclerosis(hardening

of the arteries), weaken the artery walls. These problems, along with the wear and tear that naturally

occurs with aging, can result in a weak aortic wall that bulges outward.

What are the symptoms?

Most aortic aneurysms don't cause symptoms. Sometimes a doctor finds them during exams or testsdone for other reasons. People who do have symptoms complain of belly, chest, orback painand

discomfort. The symptoms may come and go or stay constant.

In the worst case, an aneurysm can burst, or rupture. This causes severe pain and bleeding. It often

leads to death within minutes to hours.

An aortic aneurysm can also lead to other problems. Blood flow often slows in the bulging section of

an aortic aneurysm, causing clots to form. If ablood clotbreaks off from an aortic aneurysm in the

chest area, it can travel to thebrainand cause astroke.Blood clots that break off from an aortic

aneurysm in the belly area can block blood flow to the belly or legs.

How is an aortic aneurysm diagnosed?

Aneurysms are often diagnosed by chance during exams or tests done for other reasons. In some

cases, they are found during a screening test for aneurysms. Screening tests help your doctor look for

a certain disease or condition before any symptoms appear.

Experts recommend screening tests for abdominal aneurysms for men who are:

Ages 65 to 75 and have ever smoked.1

At least 60 years old and have a first-degree relative (for example, father or brother) who has had an

aneurysm.2

These men are more likely to have an aneurysm than are women or nonsmoking men.

Experts recommend screening tests for a thoracic aneurysm for anyone who has a close relative whohas had a thoracic aortic aneurysm.3

If your doctor thinks you have an aneurysm, you may have tests such as anultrasound,aCT scan,or

anMRIto find out where it is and how big it is.

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