Mitral regurgitation differential diagnosis: Difference between revisions
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{{CMG}}; '''Associate Editor-In-Chief:''' {{CZ}}; [[Varun Kumar]], M.B.B.S.; [[Lakshmi Gopalakrishnan]], M.B.B.S.; [[User:Mohammed Sbeih|Mohammed A. Sbeih, M.D.]] [mailto:msbeih@perfuse.org] | {{CMG}}; '''Associate Editor-In-Chief:''' {{CZ}}; [[Varun Kumar]], M.B.B.S.; [[Lakshmi Gopalakrishnan]], M.B.B.S.; [[User:Mohammed Sbeih|Mohammed A. Sbeih, M.D.]] [mailto:msbeih@perfuse.org] | ||
== | ==Differentiating Mitral Regurgitation from Tricuspid Regurgitation and Ventricular Septal Defects== | ||
All the three cardiac conditions have holosystolic murmur on auscultation. But they can be differentiated by characteristics of the murmur detailed below: | |||
{|border="1px" bgcolor="CadetBlue" | |||
|-align="center" | |||
|'''Mitral Regurgitation''' | |||
|'''Tricuspid Regurgitation''' | |||
|'''VSD''' | |||
|-bgcolor="PaleTurquoise" valign="top" | |||
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*The murmur in mitral regurgitation is high pitched and best heard at the apex with diaphragm of the stethoscope with patient in the lateral decubitus position. | |||
*Left ventricular function can be assessed by determining the apical impulse. | |||
*A normal or hyperdynamic apical impulse suggests good ejection fraction and primary mitral regurgitation. | |||
*A displaced and sustained apical impulse suggests decreased ejection fraction and chronic and severe mitral regurgitation. | |||
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*Can be best heard over the fourth intercostal area at left sternal border. | |||
*The intensity can be accentuated following inspiration ([[Carvallo's sign]]) due to increased regurgitant flow in right ventricular volume. | |||
*Tricuspid regurgitation is most often secondary to [[pulmonary hypertension]]. | |||
*Primary tricuspid regurgitation is less common and can be due to bacterial endocarditis following IV drug use, [[Ebstein's anomaly]], [[carcinoid disease]], or prior [[right ventricular infarction]]. | |||
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*The holosystolic murmur can be best heard over the left third and fourth intercostal spaces and along the sternal border. | |||
*When the shunt becomes reversed ("[[Eisenmenger's syndrome]]"), the murmur may be absent and S<sub>2</sub> can become markedly accentuated and single. | |||
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* Left ventricular | |||
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==References== | ==References== |
Revision as of 15:38, 6 April 2012
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: Cafer Zorkun, M.D., Ph.D. [2]; Varun Kumar, M.B.B.S.; Lakshmi Gopalakrishnan, M.B.B.S.; Mohammed A. Sbeih, M.D. [3]
Differentiating Mitral Regurgitation from Tricuspid Regurgitation and Ventricular Septal Defects
All the three cardiac conditions have holosystolic murmur on auscultation. But they can be differentiated by characteristics of the murmur detailed below:
Mitral Regurgitation | Tricuspid Regurgitation | VSD |
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