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aortic insufficiency

noun, Pathology
abnormal closure of the aortic valve resulting in regurgitation of blood to the left ventricle.
Also called aortic incompetence. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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aortic-insufficiency in Medicine

aortic insufficiency n.
Valvular insufficiency involving the aortic valve.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Article for aortic-insufficiency

aortic insufficiency

failure of the valve at the mouth of the aorta-the principal artery that distributes blood from the heart to the tissues of the body-to prevent backflow of blood from the aorta into the left lower chamber (ventricle) of the heart, from which it has been pumped. The defect causes characteristic heart sounds, audible through a stethoscope. Affected persons may experience difficulty in breathing after mild physical exertion and may suffer spasms of difficult breathing while resting in bed. Congestive heart failure-the effects of the heart's inability to function adequately as a pump-may develop. Aortic insufficiency may result from a congenitally defective valve, from rheumatic heart disease, or from syphilis. Medical treatment is directed toward management of the congestive heart failure; prevention of the recurrence of rheumatic heart disease; and prevention of bacterial endocarditis, bacterial invasion of the heart lining. Surgical treatment consists in replacing the diseased valve with a synthetic substitute or a transplant

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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