McGill Case 215

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 214 | Next Case: McGill Case 216

The recording shows sinus rhythm with first degree heart block (pr > 200ms.) Note the p waves in the inferior leads are greater than 120 ms. in duration, which suggests left atrial abnormality.