ECG Challenge

Arrhythmia Grand Rounds, April 2015, Volume 1, Issue 1: 32-34
DOI: 10.12945/j.agr.2015.00020-14

An Irregular Narrow Complex Tachycardia: What Is Your Diagnosis? ECG Challenge with Section Editor Melvin Scheinman, MD

Mark E. Josephson, MD

Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA

Abstract

An ECG of a patient with 1:2 non-reentrant supraventricular tachycardia is presented and electrocardiographic analysis is discussed. One to two non-reentrant tachycardias may cause a tachycardia-mediated cardiomyopathy because the patient is almost always in a tachycardia. Like other incessant tachycardias, the rhythm and cardiomyopathy are cured
with successful ablation.

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