ATRIAL ANTI-ARRHYTHMIA PACEMAKER AND METHOD OF USE

摘要

An atrial and ventricular pacemaker including an atrial pulse generator havi ng the capability of delivering high rate atrial pacing pulses for electrophysiologic study and having the capability of delivering ventricular pacing pulses as a backup, during delivery of high rate atrial pacing pulses . Delivery of backup ventricular pacing pulses may be preconditioned upon the occurrence of a desired number, proportion or pattern of occurrences of pace d ventricular beats preceding delivery of high-rate atrial pacing pulses. Timi ng of ventricular backup pulses is synchronized to delivered atrial pacing puls es which occur closely timed to expiration of a defined ventricular escape interval for backup pacing. The defined escape interval for ventricular back up pacing may be set as a function of the average interval separating ventricul ar events preceding initiation of high-rate atrial pacing.