Key result
Right atrial septal pacing reversed atrial mechanical timing to a left-to-right sequence and required a shorter optimal left heart AV delay than conventional pacing (108 vs 152 ms, P=0.002).
Why the study?
Does right atrial septal pacing alter the interatrial contraction sequence compared to conventional right atrial pacing?
Population
Patients undergoing atrial pacing, including a subset with high degree atrioventricular block.
Comparison
Right atrial septal pacing vs Conventional right atrial pacing, atrial…
Design
Cohort
Authors
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May warrant shorter AV delays with septal leads in dual-chamber pacing; leaves open outcome benefits in observational data.
Does right atrial septal pacing alter the interatrial contraction sequence compared to conventional right atrial pacing?
Absolute Event Rate: 108% vs 152%
p-value: p=0.002
Interatrial septal pacing reverses the atrial mechanical timing to a left-to-right contraction sequence rather than synchronizing right and left atrial contractions, requiring shorter AV delays during dual chamber pacing.
Kindermann et al. (2000) studied High degree atrioventricular (AV) block (n=59). Right atrial septal pacing vs. Conventional right atrial pacing was evaluated on Optimal left heart AV delay (p=0.002). Right atrial septal pacing reversed atrial mechanical timing to a left-to-right sequence and required a shorter optimal left heart AV delay than conventional pacing (108 vs 152 ms, P=0.002).
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