Thoracic aortic aneurysm (patient information): Difference between revisions
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Revision as of 16:42, 4 February 2013
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Thoracic aortic aneurysm |
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Thoracic aortic aneurysm On the Web |
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Risk calculators and risk factors for Thoracic aortic aneurysm |
For the WikiDoc page for this topic, click here
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-In-Chief: Priyamvada Singh, M.B.B.S [2]; Assistant Editor(s)-In-Chief: Kristin Feeney, B.S. [3]
Overview
A thoracic aortic aneurysm occurs in the part of the body's largest artery (the aorta) that passes through the chest. An aneurysm is an abnormal widening or ballooning of a portion of an artery due to weakness in the wall of the blood vessel.
What are the symptoms of a Thoracic aortic aneurysm?
Aneurysms develop slowly over many years. Most patients have no symptoms until the aneurysm begins to leak or expand. Chest or back pain may mean sudden widening or leakage of the aneurysm. Symptoms often begin suddenly when:
- The aneurysm grows quickly
- The aneurysm tears open (called a rupture)
- Blood leaks along the wall of the aorta (aortic dissection)
If the aneurysm presses on nearby structures, the following symptoms may occur:
- Hoarseness
- Swallowing problems
- High-pitched breathing (stridor)
- Swelling in the neck
Other symptoms may include:
What causes Thoracic aortic aneurysm?
The most common cause of a thoracic aortic aneurysm is hardening of the arteries (atherosclerosis). This condition is more common in people with high cholesterol, long-term high blood pressure, or who smoke. Other risk factors for a thoracic aneurysm include:
- Connective tissue disorders such as Marfan syndrome
- Inflammation of the aorta
- Syphilis
- Trauma such as falls or motor vehicle accidents
When to seek urgent medical care?
Tell your doctor if you have:
- A family history of connective tissue disorders
- Chest pain or back discomfort
Treatment options
The treatment depends on the location of the aneurysm. The aorta is made of three parts:
- The first part moves upwards towards the head. It is called the ascending aorta.
- The middle part is curved. It is called the aortic arch.
- The last part moves downwards, toward the feet. It is called the descending aorta.
For patients with aneurysms of the ascending aorta or aortic arch:
- Surgery to replace the aorta is recommended if an aneurysm is larger than 5 - 6 centimeters. The aorta is replaced with a plastic or fabric graft. This is major surgery that requires a heart-lung machine.
For patients with aneurysms of the descending thoracic aorta:
- Majory surgery is done to replace the aorta with a fabric graft if the aneurysm is larger than 6 centimeters.
- Endovascular stenting is a less invasive option. A stent is a tiny metal or plastic tube that is used to hold an artery open. Stents can be placed into the body without cutting the chest. Not all patients with descending thoracic aneurysms are candidates for stenting, however.
See also: endovascular surgery
Where to find medical care for Thoracic aortic aneurysm?
Directions to Hospitals Treating Thoracic Aortic Aneurysms
What to expect (Outlook/Prognosis)?
The long-term prognosis for patients with thoracic aortic aneurysm is determined by other medical problems such as heart disease and diabetes, which may have caused or contributed to the condition.
Possible complications
Serious complications after aortic surgery can include:
- Bleeding
- Graft infection
- Heart attack
- Irregular heartbeat
- Kidney damage
- Paralysis
- Stroke
Death soon after the operation occurs in 5 - 10% of patients. Complications after aneurysm stenting include damage to the leg, which may require another operation.
Sources
http://www.nlm.nih.gov/medlineplus/ency/article/001119.htm Template:WH Template:WS