Background: Multisite LV stimulation therapy allows for stimulation of two different left ventricular pacing vectors within a single LV lead and may improve responsiveness to cardiac resynchronization therapy (CRT). This study prospectively evaluated the safety and efficacy of the MultiPole Pacing (MPP) feature in CRT non-responder patients.
Methods And Results: CRT non-responders with a standard CRT-D indication were eligible for enrollment into the MPP Sub-Study.