McGill Case 317

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 316 | Next Case: McGill Case 318

A 55 year old man with 4 hours of "crushing" chest pain. Right Bundle Branch Block wide QRS, more than 120 ms (3 small squares) secondary R wave in lead V1 other features include slurred S wave in lateral leads and T wave changes in the septal leads See also Left Bundle Branch Block. Acute inferior MI and sinus bradycardia are also present. with permision from the site of Dr. Dean Jenkins