Summary

Successful ablation of focal atrial tachycardia (AT) requires knowledge of common sites, the ability to identify and localize P waves, use of multipolar mapping, and the knowledge to map and visualize neighboring structures, recognize intracardiac signals of interest, and consider alternative approaches. This article discusses how to maximize ablative success, studies on AT after ablation, high prevalence of AT in patients with congenital heart disease and the diversity of ATs that can develop after open heart surgery and focal AT.