Mitral regurgitation electrocardiogram: Difference between revisions
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{{CMG}}; '''Associate Editor-In-Chief:''' [[User:Mohammed Sbeih|Mohammed A. Sbeih, M.D.]][mailto:msbeih@perfuse.org]. | {{CMG}}; '''Associate Editor-In-Chief:''' [[User:Mohammed Sbeih|Mohammed A. Sbeih, M.D.]][mailto:msbeih@perfuse.org]. | ||
== | ==Overview== | ||
In severe cases of mitral regurgitation, [[left ventricular hypertrophy with strain]]; [[left atrial enlargement]], and signs of [[pulmonary hypertension]] may be observed on the resting EKG. Chronic mitral regurgitation is associated with an increased risk for [[atrial fibrillation]]. | |||
==EKG Signs in Mitral Regurgitation== | |||
'''1.''' [[LA enlargement]]: Left atrial enlargement produces a broad, bifid P wave in lead II ('''P mitrale''') and enlarges the terminal negative portion of the P wave in VI. | '''1.''' [[LA enlargement]]: Left atrial enlargement produces a broad, bifid P wave in lead II ('''P mitrale''') and enlarges the terminal negative portion of the P wave in VI. | ||
Revision as of 18:52, 15 April 2012
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: Mohammed A. Sbeih, M.D.[2].
Overview
In severe cases of mitral regurgitation, left ventricular hypertrophy with strain; left atrial enlargement, and signs of pulmonary hypertension may be observed on the resting EKG. Chronic mitral regurgitation is associated with an increased risk for atrial fibrillation.
EKG Signs in Mitral Regurgitation
1. LA enlargement: Left atrial enlargement produces a broad, bifid P wave in lead II (P mitrale) and enlarges the terminal negative portion of the P wave in VI.
In lead II following may be seen:
- Bifid P wave with > 40 ms between the two peaks
- Total P wave duration > 110 ms
In lead V1 follwing may be seen:
- Biphasic P wave with terminal negative portion > 40 ms duration
- Biphasic P wave with terminal negative portion > 1mm deep
2. Atrial fibrillation is commonly seen with mitral regurgitation: Irregularly irregular rhythm with absence P waves.
Below is an ECG in mitral regurgitation
