Why the study?
Do different methods of rate responsive pacing correctly match heart rate and effort during exercise compared to normal physiological responses?
Population
Patients with pacemakers and normal subjects
Comparison
Different methods of rate responsive pacing vs Expected heart rates at the same work load in…
Design
Review
Authors
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Rate-responsive pacing may not enhance exercise tolerance as intended; leaves open optimal sensor algorithms for prospective device trials.
Do different methods of rate responsive pacing correctly match heart rate and effort during exercise compared to normal physiological responses?
Current rate-responsive pacing systems fail to accurately mimic normal physiological heart rate responses to exercise, and AV synchrony offers negligible benefit beyond rate increase alone.
E Sowton (1987) studied this question.
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