Image Based Question – 67781

Severe Stenosis of the Valve shown in Photograph correlate with

A. Loud opening

B. Loud S1

C. Duration of Mid-diastolic murmur

D. Intensity of Mid-diastolic murmur

Correct Answer » C Explanation

Duration of Mid-diastolic murmur

This image shows Mitral wall stenosis

The normal area of the mitral valve orifice is about 4 to 6 cm². In normal cardiac physiology, the mitral valve opens during left ventriculardiastole, to allow blood to flow from the left atrium to the left ventricle. A normal mitral valve will not impede the flow of blood from the left atrium to the left ventricle during (ventricular) diastole, and the pressures in the left atrium and the left ventricle during ventricular diastole will be equal. The result is that the left ventricle gets filled with blood during early ventricular diastole, with only a small portion of extra blood contributed by contraction of the left atrium (the “atrial kick”) during late ventricular diastole