Mitral Regurgitation - Severe Auscultation Reference

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heart lung sounds waveform patient normal speed
heart lung sounds waveform patient half speed
heart lung sounds waveform synthetic

Lesson

For heart sounds listen to the synthetic sound while reviewing this lesson.

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.

The waveform(s) seen above are a chart of sound amplitude (loudness) on the vertical axis against time on the horizontal axis.


Listening Tips

A summary of the key aspects of this heart or lung sound.
Systole: Rectangular, loud murmur.
S2: Widely split.
Diastole: S3 followed by a diamond shaped, brief murmur.

Auscultation Method

maneuver
The recommended patient position is supine
torso
For this sound, use stethoscope's diaphragm The recommended auscultation position for the stethoscope is mitral



Relevant Courses

If you wish to review a complete mobile concerning Mitral Regurgitation - Severe Auscultation Reference and related heart sounds, the modules(s) listed below may be useful. Each lesson includes text that explains the auscultatory sound and its clinical significance. The lesson also includes an audio track for playback. A waveform provides a great way to visualize the sounds. Finally, we also include an animation video. For heart sounds, the video illustrates heart muscle and valve movements along with blood flow. For lung sounds, the primary source of the sounds can be seen. Each module also includes a quiz.

Mitral Regurgitation - Severe Auscultation Reference







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