Apparatus and method for atrial pace before ventricular shock in dual chamber arrhythmia control system

摘要: An apparatus and method for tachyarrhythmia reversion provides a pacing pulse to the atrium at predetermined time prior delivery of cardioversion shock ventricle. The depolarizes producing an atrial refractory period., therapy is delivered during this period in order avoid vulnerable zone atrium. This minimizes post-shock arrhythmias attributable zone. When used with bradycardia support pacing, delay or pause introduced, following tachyarrhythmia, before delivering pacing. magnitude substantially greater than normal standby interval.