Implantable stimulation device and method for determining atrial autocapture using PVC response

摘要: A pacemaker programmer and diagnostic system retrieves information stored within a analyzes the retrieved data in real time. The can be by means of telemetry communication link. automatically lengthens post-ventricular atrial refractory period (PVARP). determines capture threshold generating stimulation pulses while maintaining ventricular pulse amplitude at level known to ensure capture, detecting loss capture. In response processor triggers premature contraction (PVC) prevent retrograde P-wave from initiating pacemaker-mediated tachycardia. Also sets value above subsequent cardiac cycle, restores PVARP its pre-test value.