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Ebstein's Anomaly Lesson #704

patient thorax when auscultating by stethoscope

patient position during auscultation
The patient was supine during auscultation.

Description

This is an example of Ebstein's Anomaly, a congenital abnormality. The first heart sound is increased due to thickening of the tricuspid valve leaflets. The second heart sound is normal. A rectangular murmur of tricuspid regurgitation fills all of systole. An opening snap occurs 100 milliseconds into diastole followed by a decrescendo-crescendo murmur of mitral stenosis. These findings are all a manifestation of downward displacement of the tricuspid valve into the right ventricle

In the anatomy video you can see the enlarged right atrium and the small right ventricle. The upward plume from the right ventricle to the right atrium represents the systolic murmur. The downward plume from the right atrium to the right ventricle represents the diastolic murmur.

This murmur can be auscultated at the tricuspid area.

Phonocardiogram

Anatomy

Ebstein's Anomaly

Review the cardiac animation. Notice the enlarged right atrium and the small right ventricle. The upward plume from the right ventricle to the right atrium represents the systolic murmur. The downward plume from the right atrium to the right ventricle represents the diastolic murmur.
Authors and Sources

Authors and Reviewers

Sources


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uStat: False | db:0 | cc: | tar: False
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