Why the study?
Does right ventricular apical pacing reduce global longitudinal strain compared to non-apical pacing in pacemaker-dependent patients with preserved ejection fraction?
Population
145 pacemaker-dependent patients with preserved ejection fraction with echocardiograms of sufficient quality
Comparison
Right ventricular apical (RVA) pacing vs Non-RVA pacing
Design
RCT, randomised
Follow-up
2 years
Authors
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RVA pacing impairs global longitudinal strain at 2 years; supports non-apical sites in pacemaker-dependent patients with preserved ejection fraction.
Does right ventricular apical pacing reduce global longitudinal strain compared to non-apical pacing in pacemaker-dependent patients with preserved ejection fraction?
Right ventricular apical pacing is associated with worse global longitudinal strain, dyssynchrony, and discoordination at 2 years compared to non-apical pacing in patients with preserved ejection fraction.
Saito et al. (2015) studied this question.
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