aortic regurgitation

aortic regurgitation
aortic regurgitation n leakage of blood from the aorta back into the left ventricle during diastole because of failure of an aortic valve to close properly called also aortic incompetence, aortic insufficiency, Corrigan's disease

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reflux of blood from the aorta into the left ventricle during diastole. Aortic regurgitation most commonly follows scarring of the aortic valve as a result of previous acute rheumatic fever, but it may also result from other conditions, such as syphilis or dissecting aneurysm. Mild cases are symptom-free, but patients more severely affected develop breathlessness, angina pectoris, and enlargement of the heart; all have a diastolic murmur. A badly affected valve may be replaced surgically with a prosthesis.

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(AR) the backflow of blood from the aorta into the left ventricle, owing to aortic valve insufficiency; it may be chronic or acute.

Medical dictionary. 2011.

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