False regarding Austin-Flint murmur is: March 2009: (A) Systolic murmur, (B) Severe aoic regurgitation, (C) Originates at anterior mitral valve leaflet, (D) May be confused with Murmur of mitral stenosis
Answer is A. Ans. A: Systolic murmur Austin-flint murmur is a mid-diastolic/presystolic murmur heard in chronic severe AR. The diastolic murmur mimics mitral stenosis and is attributed to mitral valve leaflet vibration or mild obstruction caused by rapid regurgitant flow both from the aoic root and the left atrium.