Clinical impact of increasing left ventricular pacing output in cardiac resynchronization therapy – the new optimization strategy

Abstract

We report a patient who did not improve after standard optimization of atrioventricular and intraventricular pacing timing, but showed response to cardiac resynchronization therapy ( CRT ) after increasing left ventricular ( LV ) pacing output. Increasing LV pacing output is one of the useful optimization methods for CRT nonresponder.