Why the study?
Does adaptive rate pacing with different programmed upper rates improve submaximal exercise capacity compared to constant rate pacing in patients with implanted pacemakers?
Population
12 patients with implanted adaptive rate pacemakers (9 Meta, 3 Activitrax), median age 69 years (range 33-80).
Comparison
Rate adaptive pacing with the upper rate… vs Constant rate pacing (SSI) mode.
Design
RCT, Upper rate randomly programmed
Authors
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Optimal upper rates (125-150 bpm) modestly enhance exercise capacity with rate-adaptive pacing; extends RCT evidence for tailored programming versus fixed-rate modes.
Does adaptive rate pacing with different programmed upper rates improve submaximal exercise capacity compared to constant rate pacing in patients with implanted pacemakers?
Adaptive rate pacing improves submaximal exercise performance, but the benefit is small and depends on the programmed upper rate, with excessively high rates causing complications.
Lau et al. (1989) studied this question.
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