Aortic regurgitation (AR) is the flow of blood from the aorta backwards into the left ventricle during the diastolic phase of the cardiac cycle. Chronic AR is more prevalent and carries a much better prognosis than acute AR. Causes of chronic AR include congenital lesions, connective tissue disorders, inflammatory diseases, appetite suppressant medications, rheumatic disease, and annular dilation from aging and chronic hypertension. These processes cause malcoaptation of the AV leaflets by causing abnormalities in the leaflets themselves or dilation of the AV annulus, the aortic root, or both.12