General Information
DEFINITION--Enlargement or bulge in an artery caused by a weak artery wall.
Aneurysms occur most often after a heart attack.
BODY PARTS INVOLVED--Arteries. Aneurysms occur most often in the aorta (major
artery in the chest and abdomen), arteries that supply the brain or legs, or heart wall
after a heart attack.
SEX OR AGE MOST AFFECTED--Adults of both sexes.
SIGNS & SYMPTOMS--
CAUSES
- Most common cause is high blood pressure which weakens an artery.
- Atherosclerosis (hardening of the arteries).
- Congenitally weak artery (especially with aneurysms in blood vessels to the brain).
- Syphilis or infection in the aorta caused by syphilis (rare).
- Injury.
RISK INCREASES WITH
Adults over 60; previous heart attack; high blood pressure; smoking; obesity; family
history of aneurysms; polyarteritis nodosa (inflam-mation of the small and medium
arteries); bacterial endocarditis (infection of the heart lining); marfan syndrome.
HOW TO PREVENT
- Don't smoke; get regular exercise; maintain adequate nutrition and a low fat diet;
obtain early treatment for syphilis.
- Follow your treatment program to control high blood pressure; reduce stress.
- If you have a family history of aneurysms, ask your doctor about screening tests.
What To Expect
DIAGNOSTIC MEASURES--
- Your own observation of symptoms.
- Medical history and exam by a doctor.
- Laboratory blood studies of clotting.
- ECG (See Glossary).
- X-rays of blood vessels (angiography).
- X-rays of the head, including CT scan or ultrasound (See Glossary
for both).
APPROPRIATE HEALTH CARE
- Doctor's treatment; hospitalization.
- Surgery to replace the diseased vessel or close off the aneurysm. An aneurysm to the
brain may require emergency surgery. Surgery for other types of aneurysms may be scheduled
at a convenient time. (See Abdominal-Aortic Aneurysm, Removal of in Surgery section.)
POSSIBLE COMPLICATIONS
- Stroke.
- Rupture of the aneurysm. Symptoms include severe headache, severe knifelike chest,
abdominal or leg pain, and loss of consciousness. If not treated, it can be fatal.
PROBABLE OUTCOME--Often curable with surgery to replace the diseased vessel with
grafts (artificial vessels). Surgery on a heart aneurysm can stabilize the heartbeat and
prolong life. Aneurysms sometimes recur.
How To Treat
GENERAL MEASURES----Early detection and treatment before rupture are essential.
See your doctor if you have any signs of an aneurysm-- especially a pulsating mass in the
abdomen or leg--even if it does not cause symptoms.
MEDICATION--After surgery, your doctor may prescribe:
- Anticoagulants to prevent blood-clot formation in an aneurysm.
- Pain relievers.
ACTIVITY--Avoid heavy exertion or straining prior to surgery. After surgery,
resume normal activities gradually.
DIET--Before surgery, eat a high-fiber diet. After surgery, no special diet.
Call Your Doctor If
- You have symptoms of an aneurysm, especially a pulsating mass in your abdomen or leg, or
chest or abdominal pain. This is an emergency! Call for help and rest in bed.
- You have had a heart attack and develop heartbeat irregularity or symptoms of congestive
heart failure.
- After surgery, any symptoms return.
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