First Heart Sound - Loud
First Heart Sound - LoudUsually, the first heart sound is slightly louder than the second heart sound when heard in the Mitral valve area. In this case the first heart sound is much louder than the second heart sound. This can be produced by a thickened, but still mobile, mitral valve. Look at the anatomy video to see the thickened mitral valve leaflets. A very loud first heart sound can be an indication of mitral stenosis.
The patient's position should be supine.
Listening TipsS1:Increased intensity
S2:Softer intensity than S1
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