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Definition of Aortic insufficiency

Aortic insufficiency: Backflow of blood from the aorta into the left ventricle across a weakened aortic valve. Also known as aortic regurgitation.

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=2296
Last Editorial Review: 3/19/2012

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