Which side are you on? - Deducing the chamber of origin of atrial tachycardia

Indian Pacing and Electrophysiology Journal
Raja J SelvarajRaveendranath Veeramani

Abstract

Atrial arrhythmias rising from the regions of the atria that are in close proximity to each other may pose a challenge in identifying the chamber to map and ablate in. In this report, we discuss a patient with left atrial tachycardia which initially mimicked right atrial tachycardia. We discuss the origins of the abnormal electrograms in the right atrium and how this provides a general understanding of the mechanism of double potentials.

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