Mitral Regurgitation - Severe

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This is an example of severe mitral regurgitation which is caused by degeneration of the mitral valve leaflets.

The first heart sound is normal. The second heart sound is widely split.

Following the second heart sound there is a third heart sound gallop.

There is a loud, rectangular, pansystolic murmur.

There is a brief, rumbling, diamond-shaped diastolic murmur immediately following the third heart sound.

In the anatomy tab you can see the enlarged left atrium and left ventricle.

You can see the turbulent blood flow from the left ventricle into the left atrium. This is the systolic murmur.

You can see the brief turbulent blood flow from the left atrium to the left ventricle in diastole. This is caused by too much blood in the left atrium which forces blood back into the ventricle during diastole producing the flow rumble.

Mitral Regurgitation - Severe
The recommended auscultation position for the stethoscope is the Mitral position. For this sound, use stethoscope's Diaphragm.


maneuver
The recommended patient position is Supine

Phonocardiogram

waveform
This waveform plots sound amplitude on the vertical axis against time on the horizontal axis.

Heart Animation

Lessons
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Listening Tips
A synopsis of important sound features and timing for this abnormality.
Systole: Rectangular, loud murmur.
S2: Widely split.
Diastole: S3 followed by a diamond shaped, brief murmur.
CaseID101
CourseID28
CourseCaseOrder1
ID91