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Aortic regurgitation
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Aortic regurgitation

Aortic valve prolapse; Aortic insufficiency; Heart valve - aortic regurgitation; Valvular disease - aortic regurgitation; AI - aortic insufficiency

Aortic regurgitation is a heart valve disease in which the aortic valve does not close tightly. This allows blood to flow from the aorta (the largest blood vessel) into the left ventricle (a chamber of the heart).

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Aortic insufficiency

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Causes

Any condition that prevents the aortic valve from closing completely can cause this problem. When the valve does not close all the way, some blood comes back each time the heart beats.

When a large amount of blood comes back, the heart must work harder to force out enough blood to meet the body's needs. The left lower chamber of the heart widens (dilates) and the heart beats very strongly (bounding pulse). Over time, the heart becomes less able to supply enough blood to the body.

In the past, rheumatic fever was the main cause of aortic regurgitation. The use of antibiotics to treat strep infections has made rheumatic fever less common. Therefore, aortic regurgitation is more commonly due to other causes. These include:

Aortic insufficiency is most common in men between the ages of 30 and 60.

Symptoms

The condition often has no symptoms for many years. Symptoms may come on slowly or suddenly. They may include:

Exams and Tests

Signs may include:

Aortic regurgitation may be seen on tests such as:

A chest x-ray may show swelling of the left lower heart chamber.

Lab tests cannot diagnose aortic insufficiency. However, they may help rule out other causes.

Treatment

You may not need treatment if you have no symptoms or only mild symptoms. However, you will need to see a health care provider for regular echocardiograms.

If your blood pressure is high, you may need to take blood pressure medicines to help slow the worsening of aortic regurgitation.

Diuretics (water pills) may be prescribed for symptoms of heart failure.

In the past, most people with heart valve problems were given antibiotics before dental work or an invasive procedure, such as colonoscopy. The antibiotics were given to prevent an infection of the damaged heart. However, antibiotics are now used much less often.

You may need to limit activity that requires more work from your heart. Talk to your provider.

Surgery to repair or replace the aortic valve corrects aortic regurgitation. The decision to have aortic valve replacement depends on your symptoms and the condition and function of your heart.

You may also need surgery to repair the aorta if it is enlarged.

Outlook (Prognosis)

Surgery can cure aortic insufficiency and relieve symptoms, unless you develop heart failure or other complications. People with angina or congestive heart failure due to aortic regurgitation do poorly without treatment.

Possible Complications

Complications may include:

When to Contact a Medical Professional

Call your provider if:

Prevention

Blood pressure control is very important if you are at risk for aortic regurgitation.

Related Information

Rheumatic fever
Endocarditis
Marfan syndrome
Aortic dissection
Ankylosing spondylitis
Reactive arthritis

References

Carabello BA. Valvular heart disease. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 26th ed. Philadelphia, PA: Elsevier; 2020:chap 66.

Lindman BR, Bonow RO, Otto CM. Aortic valve disease. In: Zipes DP, Libby P, Bonow RO, Mann DL, Tomaselli GF, Braunwald E, eds. Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine. 11th ed. Philadelphia, PA: Elsevier; 2019:chap 68.

Nishimura RA, Otto CM, Bonow RO, et al. 2017 AHA/ACC focused update of the 2014 AHA/ACC guideline for the management of patients with valvular heart disease: a report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines. Circulation. 2017;135(25):e1159-e1195. PMID: 28298458 pubmed.ncbi.nlm.nih.gov/28298458/.

Otto CM. Valvular regurgitation. In: Otto CM, ed. Textbook of Clinical Echocardiography. 6th ed. Philadelphia, PA: Elsevier; 2018:chap 12.

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Review Date: 1/27/2020  

Reviewed By: Michael A. Chen, MD, PhD, Associate Professor of Medicine, Division of Cardiology, Harborview Medical Center, University of Washington Medical School, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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