McGill Case 55

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 54 | Next Case: McGill Case 56

Supraventricular Tachycardia with Block This patient had a long history of supraventricular tachycardia. This electrocardiogram shows the atrial tachycardia with 2:1 A/B block. Although this can be seen with digitalis excess, this was not the case here. The patient required several cardioversions and could not be kept out of her tachycardia in spite of treatment with amiodarone, calcium entry blockers, and digoxin.