Patent ID: 7565196
Filing Date: 2009-07-21
Classification: A61F,A61K,A61M,A61N

Abstract:
1. A method comprising: operating an implantable medical device according to a ventricular pacing protocol (VPP) wherein ventricular pacing is precluded in a given cardiac cycle where a ventricular event occurred in a cardiac cycle immediately prior to the given cardiac cycle; establishing an A-A interval; initiating a first AV interval timer having a duration that is shorter than the A-A interval at the initiation of the given cardiac cycle; sensing for ventricular events; scheduling an atrial pacing pulse prior to the termination of the A-A interval if no ventricular event is sensed within the duration of the AV interval timer; and delivering the atrial pacing pulse subsequent to the expiration of the first AV interval timer and prior to termination of the A-A interval if no ventricular activity is sensed within the first AV interval timer.