Fuest Stephen, Gleva Marye J, Noheria Amit
Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States.
Electrophysiology Section, Cardiovascular Division, Washington University School of Medicine, St. Louis, MO, United States.
J Electrocardiol. 2018 Jan-Feb;51(1):126-128. doi: 10.1016/j.jelectrocard.2017.08.034. Epub 2017 Sep 1.
We present a 21-year-old woman status post orthotopic heart transplantation initially presenting with a regular narrow complex tachycardia at 159beats/min. With intravenous diltiazem the rhythm transitioned to a regular tachycardia at 106beats/min, 2/3rd of the initial heart rate. We demonstrate this to be a novel description of 3:2second-degree Mobitz type I atrioventricular block (Wenckebach) with the absence of the hallmark regularly irregular (grouped beating) pattern.