PACEMAKER WITH VASOVAGAL SYNCOPE DETECTION AND THERAPY

摘要

A method and apparatus for cardiac pacing are provided in which pacing pulses are delivered at an increased rate (454, 470) in response to a detected intrinsic heart rate drop (505) and a special rate drop response detection scheme is temporarily disabled (510) until an intrinsic heart rate exceeds a predetermined threshold value (450). If the pacing rate reaches the lower pacing rate without sensing intrinsic activity, heart rate drop detection remains disabled and lower rate pacing continues. Rate drop detection is re-enabled (530) whenever sufficient sensed intrinsic activity indicates that a sudden intrinsic rate drop could occur again.