Tachycardia with cycle length alternans in Ebstein's anomaly

J Arrhythm. 2024 Jun 19;40(4):1026-1028. doi: 10.1002/joa3.13099. eCollection 2024 Aug.

Abstract

The tachycardia which presents with regularly irregular rhythm consists of a broad set of differential diagnoses. We present a case of cycle length alternans tachycardia in a patient, with Ebstein's anomaly and describe how a diagnosis was arrived at after careful analysis of electrocardiogram and EGMs.

Keywords: congenital heart disease; electrophysiology study; supraventricular tachycardia.