Dual chamber pacemaker with safe airial pacing

摘要: A dual chamber pacemaker is provided, preferably either DDDR or DDIR, having logic hardware and/or software for normally carrying out the DDIR mode of operation, and further means a safe atrial pace method operation in circumstances where normal pacing could otherwise be competitive result loss capture. The has detecting an sense during PVARP, timing delay from time early sense, delivering pulse at end delay, controlling generation ventricular synchronous relation to with least minimum AV interval.