Acute Pacing‐Induced Dyssynchronous Activation of the Left Ventricle Creates Systolic Dyssynchrony with Preserved Diastolic Synchrony

Abstract

Acute dyssynchronous activation of the LV created by RVA pacing resulted in systolic dyssynchrony with preserved diastolic synchrony in pediatric patients following catheter ablation for treatment of supraventricular tachycardia. Our results suggest that systolic and diastolic dyssynchrony are not tightly coupled and may develop through separate mechanisms.