Key result
Rate-responsive dual chamber pacing improved cardiac function and demonstrated superiority over single ventricular pacing in preliminary noninvasive hemodynamic assessments.
Why the study?
Does a rate-responsive dual chamber pacemaker improve cardiac function compared to single ventricular pacing?
Does a rate-responsive dual chamber pacemaker improve cardiac function compared to single ventricular pacing?
A new rate-responsive dual chamber pacemaker demonstrates appropriate technical functioning and superior hemodynamic performance compared to single ventricular pacing.
May support rate-responsive dual-chamber pacing in select cases; leaves open confirmation in randomized trials.
We report about a new pacemaker, which simultaneously offers dual chamber pacing in DDD Mode and activity controlled rate response. The system also uses activity-sensing to differentiate true sinus tachycardia from ectopic atrial activity or atrial fibrillation and therefore prevents pacemaker mediated arrhythmias. The clinical experience proves appropriate functioning of all technical aspects of the device. Preliminary noninvasive hemodynamic assessments confirm improvement in cardiac function with AV synchronous pacing mode and demonstrate the ouporiority of rate-responsive dual chamber versus single ventricular pacing.
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Kappenberger et al. (1986) studied this question. Rate-responsive dual chamber pacemaker vs. Single ventricular pacing was evaluated on Cardiac function (hemodynamic assessments). Rate-responsive dual chamber pacing improved cardiac function and demonstrated superiority over single ventricular pacing in preliminary noninvasive hemodynamic assessments.
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