Patent ID: 7463925
Filing Date: 2008-12-09
Classification: A61N

Abstract:
1. A method of restoring or maintaining ventricular pacing of left and right-ventricles of a patient's heart, comprising: providing a plurality of atrioventricular delays, the plurality of atriventricular delays comprising a sensed atrioventricular delay; providing a post ventricular atrial refractory period (PVARP); pacing the lift and right ventricles and initiating the PVARP during at least one cardiac cycle; detecting disrupted ventricular pacing comprising sensing an intrinsic ventricular depolarization during the cardiac cycle; responsive to detecting the disrupted ventricular pacing, implementing at least one modified timing interval including a decreased PVARP during at least one subsequent cardiac cycle; pacing the ventricles and initiating the decreased PVARP during the at least one subsequent cardiac cycle; sensing an intrinsic atrial depolarization occurring beyond the decreased PVARP; initiating the sensed atrioventricular delay relative to the intrinsic atrial depolarization; and pacing the ventricles following the sensed atrioventricular delay.