Why the study?
Does acute right ventricular apical pacing alter left atrial function in patients with sick sinus syndrome?
Population
24 patients with sick sinus syndrome and intact intrinsic atrioventricular conduction
Comparison
Acute right ventricular apical pacing for 1 hour… vs Baseline (before pacing)
Design
Cohort
Follow-up
1 hour
Authors
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Acute RVA pacing may impair LA function in sick sinus syndrome; hypothesis-generating for dyssynchrony effects, needs prospective validation.
Does acute right ventricular apical pacing alter left atrial function in patients with sick sinus syndrome?
Acute right ventricular apical pacing induces left atrial dysfunction and left ventricular dyssynchrony, with higher LV filling pressures contributing to the LA functional changes.
Kim et al. (2013) studied this question.
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