Auscultation Training by Repetition

Mitral Regurgitation and Aortic Regurgitation - C403, #105

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Listen for 2-3 minutes

Sitting leaning forward

Diaphragm

Listening Tips

S1: Minimally reduced intensity.
Systole: Rectangular murmur, moderate intensity.
Diastole: Decrescendo murmur, moderate intensity.

Repetition Training - More Heart Sounds

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Lesson Text

This is an auscultation example of moderate regurgitation of both the aortic and mitral valves.

The first heart sound is minimally decreased due to minimal closure of the mitral valve leaflets in early systole. The second heart sound is normal.

There is a rectangular murmur which takes up most of systole and a decrescendo murmur which takes up most of diastole. Both murmurs are of moderate intensity.

The combination of the two murmurs creates a to-and-fro sound character.

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

You see regurgitant turbulent flow into the left atrium from the left ventricle (the systolic murmur) and regurgitant turbulent flow from the aorta into the left ventricular outflow tract (the diastolic murmur).

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soundID	83
maneuver	Sitting leaning forward
Title	Mitral Regurgitation and Aortic Regurgitation
Position	Mitral
realSoundID
caseID	105
S1	Minimally reduced intensity
Systole	Rectangular murmur, moderate intensity
S2
Diastole	Decrescendo murmur, moderate intensity
features
lung sounds	False
chestpiece	Diaphragm

c403

CaseID	105
CourseID	28
CourseCaseOrder	5
ID	95