Electrocardiographic Patterns of Superior Right Ventricular Outflow Tract Tachycardias: Distinguishing Septal and Free‐Wall Sites of Origin

ECG Patterns of RVOT Tachycardias. Introduction: The superior right ventricular outflow tract (RVOT) septum and free wall are common locations of origin for outflow tract ventricular tachycardias (VT). We hypothesized that (1) unique ECG morphologies of pace maps from septal and free‐wall sites in the superior RVOT could be identified using magnetic electroanatomic mapping for accurate anatomical localization; and (2) this ECG information could help facilitate pace mapping and accurate VT localization.

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