Acute aoic regurgitation is seen in all the following except
Ref Harrison 19 th ed pg 1535 acute severe AR, as may occur in infective endo- carditis, aoic dissection, or trauma, the LV cannot dilate sufficiently to maintain stroke volume, and LV diastolic pressure rises rapidly with associated marked elevations of LA and PA wedge pressures. Pulmonary edema and/or cardiogenic shock may develop rapidly.
Marfan's syndrome
Acute myocardial infraction
Bacterial endocarditis
Ankylosing spondylitis
C.V.S