Using the 12-lead ECG to localize the origin of ventricular and atrial tachycardias: Part 1. Focal atrial tachycardia

Abstract

Focal atrial tachycardia is an unusual form of supraventricular tachycardia arising from defined anatomic locations and sites within the atria. Although recent advances in mapping technology have facilitated successful ablation, the surface ECG remains an important aid in localizing the focus. This review discusses the use of P-wave morphology on surface ECG to localize the site of focal atrial tachycardia. © 2009 Wiley Periodicals, Inc.