Mitral RegurgitationThe murmur of mitral regurgitation is a mid-frequency, rectangular murmur taking up all of systole. S1 is normal. S2 is single. There is a third heart sound gallop in diastole. Both the left ventricle and the left atrium are enlarged. The murmur is caused by turbulent flow through the incompetent mitral valve leaflets into the left atrium.
The patient's position should be supine.
Listening TipsSystole:Rectangular murmur, mid-frequency
Features:Use chestpiece bell to improve S3 sound
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