Mitral Stenosis (Diastolic Murmur) Auscultation Reference

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heart lung sounds waveform synthetic

Lesson

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

This is an example of a diastolic decrescendo murmur occurring after an opening snap. It is associated with mitral stenosis.

The first heart sound is increased in intensity while the second heart sound is normal. An opening snap is present after the second heart sound. The low pitched rumbling murmur starts after the opening snap and lasts until mid diastole.

On the anatomy tab you can see an enlarged left atrium and thickened but mobile mitral leaflets.

Turbulent blood flow from the left atrium into the left ventricle is responsible for the murmur.

As you listen to this sound, observe the waveform. This is a graph of sound amplitude (loudness) on the vertical axis vs time on the horizontal axis.


Additional Listening Tips

S1: Increased intensity.
Diastole: Opening snap followed by diamond shaped, low pitch murmur.

Auscultation Method

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



Relevant Courses

If you wish to review a complete mobile concerning Mitral Stenosis (Diastolic Murmur) 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 Stenosis (Diastolic Murmur) Auscultation Reference