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Mild Mitral Stenosis Lesson

Virtual Auscultation

patient torso with stethoscope chestpiece

patient position during auscultation
The patient's position is supine left side down.

Lesson

Mild mitral stenosis murmurs can have increased intensity of S1, while the second heart sound is normal and unsplit. Systole is silent. In this recording, an opening snap occurs 100 milliseconds into diastole. As mitral stenosis becomes more severe, the opening snap will occur earlier in diastole. A diamond-shaped, low-frequency murmur follows the opening snap.

Auscultate using the stethoscope bell.

The first heart sound intensity is increased because of the mild thickening of the mitral valve leaflets. Mild mitral stenosis is commonly due to rheumatic heart disease.

In the cardiac animation, observe the turbulent blood flow from the left atrium into the left ventricle. Also, notice the minimally thickened mitral valve leaflets and the minimally enlarged left atrium.

Waveform




Heart Sounds Video

Review the cardiac animation. You can see the turbulent blood flow from the left atrium into the left ventricle. Observe the minimally thickened mitral valve leaflets and the minimally enlarged left atrium. The excursion of the mitral valve leaflets is minimally decreased.


Authors and Sources

Authors and Reviewers

Sources

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