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Case Reports in Medicine
Volume 2013, Article ID 430862, 4 pages
http://dx.doi.org/10.1155/2013/430862
Case Report

Focal Left Atrial Tachycardia in a Patient with Left Ventricular Noncompaction

Division of Internal Medicine, West Penn Allegheny Health System, 320 East North Avenue, Pittsburgh, PA 15212, USA

Received 1 March 2013; Accepted 22 April 2013

Academic Editor: Dianne L. Atkins

Copyright © 2013 Shailendra Singh et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Left ventricular noncompaction (LVNC) is a rare disease caused by intrauterine failure of the myocardium to compact. The major clinical manifestations of LVNC include heart failure, ventricular tachyarrhythmia, thromboembolic event, and sudden deaths. Atrial arrhythmia usually seen is atrial fibrillation. We report a rare case of focal left atrial tachycardia in an 18-year-old patient who presented for evaluation of persistent tachycardia. Transthoracic echocardiogram showed severe systolic dysfunction and evidence of noncompaction of the left ventricle. A detailed review of ECG revealed the possibility of ectopic atrial tachycardia, most likely originating from the left side. Electrophysiology study showed sustained atrial tachycardia originating on the ridge anterior to the left sided pulmonary veins. A successful radiofrequency catheter ablation was performed at this site without any complications.