Why the study?
Does right atrial pacing prolong interatrial conduction time compared to sinus rhythm in patients undergoing DDD pacemaker implantation?
Population
25 patients undergoing DDD pacemaker implantation, on no cardiac medications. Subgroups included 16 patients…
Comparison
Right atrial pacing at incremental rates from… vs Sinus rhythm (baseline)
Design
Cross-sectional
Authors
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May support longer AV intervals with right atrial pacing; leaves open need for outcome trials before practice change.
Does right atrial pacing prolong interatrial conduction time compared to sinus rhythm in patients undergoing DDD pacemaker implantation?
Right atrial pacing significantly prolongs interatrial conduction time compared to sinus rhythm, suggesting that the AV interval during DDD pacing should be programmed approximately 25 ms longer than during atrial tracking.
Ausubel et al. (1986) studied this question.
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