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Mitral Regurgitation Reference Guide.

Mitral Regurgitation

The 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.


Auscultation Sound From Lesson

auscultation sound from lesson
waveform






Position

Patient position
The patient's position should be supine.

Listening Tips

S1:
Systole: Rectangular murmur, mid-frequency
S2:
Diastole: S3 gallop
Features:Use chestpiece bell to improve S3 sound


Observe

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.

Mitral Regurgitation - Reference Page

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