Mitral stenosis electrocardiogram: 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. | {{CMG}}; '''Associate Editor-In-Chief:''' {{CZ}}; [[Varun Kumar]], M.B.B.S.; [[Lakshmi Gopalakrishnan]], M.B.B.S. | ||
{{Mitral stenosis}} | {{Mitral stenosis}} | ||
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*Bifid P wave with > 40 ms between the two peaks | *Bifid P wave with > 40 ms between the two peaks | ||
*Total P wave duration > 110 ms | *Total P wave duration > 110 ms | ||
[[Image:P mitrale.gif| | [[Image:P mitrale.gif|400px|center]] | ||
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*Biphasic P wave with terminal negative portion > 1mm deep | *Biphasic P wave with terminal negative portion > 1mm deep | ||
[[Image:LAE-v1.png|Left atrial enlargement as seen in lead V1| | [[Image:LAE-v1.png|Left atrial enlargement as seen in lead V1|center|500px]] | ||
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Below is an '''ECG in mitral stenosis''' | Below is an '''ECG in mitral stenosis''' | ||
[[Image:LAE_12lead.jpg|Left atrial enlargement, a 12 lead ECG| | [[Image:LAE_12lead.jpg|Left atrial enlargement, a 12 lead ECG|500px]] | ||
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==References== | ==References== | ||
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Revision as of 16:20, 12 October 2012
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.
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Mitral Stenosis Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Mitral stenosis electrocardiogram On the Web |
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American Roentgen Ray Society Images of Mitral stenosis electrocardiogram |
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Risk calculators and risk factors for Mitral stenosis electrocardiogram |
Electrocardiographic findings in Mitral stenosis
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. Right ventricular hypertrophy: A mean QRS axis in the frontal plane is greater than 80 and an R-to-S ratio of greater than 1 in lead V1.
3. Right axis deviation: mean QRS axis in the frontal plane moves toward the right as pulmonary hypertension worsens.
4. Atrial fibrillation is commonly seen with mitral stenosis: Irregularly irregular rhythm with absence P waves.
Below is an ECG in mitral stenosis
