McGill Case 268

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This case report is kindly provided by Michael Rosengarten from McGill and is part of the McGill Cases. These cases come from the McGill EKG World Encyclopedia.

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The cardiogram shows sinus rhythm and a QRS with a rightward axis, as well as wide Q waves in leads I and AVL as well as a poor r wave progression across the anterior chest leads. There is also slight ST elevation in leads I, aVL, and T wave inversion in the lateral leads. The EKG is consistent with a lateral wall myocardial infarction. The patient had had a myocardial infarction a few months before. This event was associated with a cardiac arrest due to ventricular fibrillation which was successfully treated by the 911 ambulance service.