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Conduction disturbance not subendocardial injury
Interpretation by Matthew Schumaecker
EKG recorded and edited by Dr. M. Rosengarten, MUHC, 1997
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Conduction disturbance not subendocardial injury
Interpretation by Matthew Schumaecker
EKG recorded and edited by Dr. M. Rosengarten, MUHC, 1997
This tracing shows sinus rhythm. The rate is 60/minute. There is an M shaped QRS complex (rSR' variant) in leads V1 to V3. In addition there are deep and slurred S waves in V6. There are also prominent S waves proceeded by very small r waves in II, III and aVF as well as a left axis deviation of -60. Together, these findings suggest bifascicular block: right bundle branch and left anterior hemiblock (The left axis deviation could also represent an old inferior infarction with regenerated R waves in the inferior leads).
There is ST segment depression in leads V1 to V3. This probably indicates reciprocal changes due to the conduction disturbance and is not subendocardial ischemia of the anterior wall or an acute transmural injury of the posterior wall.
