Aortic Regurgitation Case #5

A 82-year-old female with emphysema is becoming increasingly short of breath. She is noted to have a II/IV early diastolic decrescendo murmur, and thus an echocardiogram is ordered. Aortic regurgitation is present. The pressure half-time is found to be 400 milliseconds and the regurgitant fraction 45%. These findings are consistent with:

A. Mild aortic regurgitation

B. Moderate aortic regurgitation

C. Severe aortic regurgitation

D. Trace aortic regurgitation