Role of surface electrocardiogram precordial leads in localizing different anatomic sites of ectopic atrial tachycardia arising from lower right atrium in pediatric population

摘要

The study was designed to examine P wave morphology ( ) in precordial leads (V –V ) during ectopic atrial tachycardia ( ) originating from low right atrium ( ) to identify the anatomic sites of these foci in children.