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Mid-Systolic Click C31

This is an auscultation example of a mid-systolic click heard at the mitral valve area. The first and second heart sounds are normal. The second heart sound is unsplit and no murmur is present so that you can concentrate on the systolic click. On the anatomy video you can see that the mitral valve posterior leaflet prolapses. The mid-systolic click is produced by the sudden prolapse of the leaflet. A mid-systolic click is often followed by a late systolic murmur of mitral valve leaflet prolapse.

Auscultation Sounds

auscultation sound from lesson
waveform

Patient Recording

patient heart or lung sound
Mid-Systolic Click C31

Patient Recording - Half Speed

patient heart or lung sound
Mid-Systolic Click C31

Position

Patient position
The patient's position should be supine.

Listening Tips

Systole:high-pitched click

Waveform (Phonocardiogram)



Observe Cardiac Animation

Play the animation and observe that the mitral valve posterior leaflet prolapses. The mid-systolic click is produced by the sudden prolapse of the leaflet.
Authors and Sources

Authors and Reviewers


Sources

Return to Reference Guide Index Page
Mid-Systolic Click C31 | Lessons with Audio and Video | #121


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