| 摘要 |
<p>Cardiac pacemaker, having at least one stimulation pulse generator to selectively generate stimulation pulse for delivery to an atrium or to atrium and ventricle in a DDD mode, at least one sensing stage adapted to process electrical signals picked up by an atrial and a ventricular sensing electrode to detect an atrial or a ventricular event and to generate an atrial or a ventricular sense signal upon detection of said event, a control unit connected to the stimulation pulse generator and to the sensing stage and adapted to respond to the sensing stage output signal and to trigger the stimulation pulse generator in a DDD mode. Said control unit is adapted to verify a proper atrioventricular conduction and to switch from a regular (DDD) mode to a ventricular pulse suppression mode (V p S mode) wherein no ventricular stimulation pulses or ventricular stimulation pulses of sub-threshold intensity are generated as long as proper atrioventricular conduction is verified.</p> |
