Why the study?
Does activity-sensing rate responsive pacing (VVIR) improve heart rate behavior and patient well-being compared to fixed-rate pacing (VVI) during routine daily exercise in patients with pacemakers?
Population
21 patients with an activity-sensing rate responsive pacemaker
Comparison
Activity-sensing rate responsive pacing during… vs Conventional fixed-rate pacing during the same…
Design
Other, double blind
Authors
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Supports VVIR over VVI for pacemaker-dependent patients; extends evidence favoring rate-responsive pacing in this subgroup.
Does activity-sensing rate responsive pacing (VVIR) improve heart rate behavior and patient well-being compared to fixed-rate pacing (VVI) during routine daily exercise in patients with pacemakers?
VVIR pacing provides subjective benefits during daily activities primarily for patients who are pacemaker-dependent, particularly those with lower ejection fractions, but may be less beneficial for those with intermittent pacing.
CANDINAS et al. (1991) studied this question.
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