McGill Case 145

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 144 | Next Case: McGill Case 146

This is a recording from the pacemaker clinic. The patient had a DDD pacemaker that was set to an AAI mode to check the atrial pacing threshold. This could be done as the patient had a stable ventricular escape rhythm. In this case slowing the ventricular rhythm made the P waves easier to see and the testing easier.