McGill Case 268

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. Previous Case: McGill Case 267 | Next Case: McGill Case 270

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.