Patent ID: 7460908
Filing Date: 2008-12-02
Classification: A61N

Abstract:
1. A method of delivering biventricular coordination therapy, comprising: initiating an atrioventricular pacing delay for a first cardiac cycle relative to an atrial event paced or sensed using one or more atrial electrodes; decreasing the atrioventricular pacing delay for a second cardiac cycle, occurring after the first cardiac cycle, if an intrinsic ventricular depolarization is sensed before expiration of the atrioventricular pacing delay for the first cardiac cycle; computing the decreased atrioventricular pacing delay with a mathematical function using the previous atrioventricular pacing delay and the interval between the atrial event and the intrinsic ventricular depolarization during the first cardiac cycle; and delivering the biventricular coordination therapy during the second cardiac cycle, using one or more right ventricular electrodes and one or more left ventricular electrodes separate from the one or more right ventricular electrodes, using the decreased atrioventricular pacing delay.