Why the study?
Does frequent right ventricular apex pacing increase the Tei index and BNP levels in patients with dual-chamber pacemakers without structural heart disease?
Population
76 patients with dual chamber pacemakers without structural heart disease.
Comparison
Right ventricular apex pacing ≥50% of the time. vs RVA pacing <50% of the time.
Design
Cohort
Follow-up
mean 44±75 months from pacemaker implantation
Authors
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RV apical pacing was associated with higher Tei indices and BNP; leaves open whether this signals subclinical dysfunction warranting minimized pacing in dual-chamber devices.
Does frequent right ventricular apex pacing increase the Tei index and BNP levels in patients with dual-chamber pacemakers without structural heart disease?
Frequent right ventricular apex pacing is associated with increased LV and RV Tei index, LV diastolic dimension, and BNP levels in patients with dual-chamber pacemakers without structural heart disease.
Ichiki et al. (2006) studied this question.
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