Why the study?
Does rate adaptive pacing improve heart rate response and exercise capacity compared to fixed rate pacing in rate incompetent patients with minute ventilation single chamber pacemakers?
Does rate adaptive pacing improve heart rate response and exercise capacity compared to fixed rate pacing in rate incompetent patients with minute ventilation single chamber pacemakers?
Despite providing a physiological rate response to exercise, rate adaptive single chamber pacing did not improve exercise capacity and was preferred by only a minority of patients, suggesting caution in patient selection.
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Rate-adaptive pacing raises maximal heart rate without improving exercise capacity; challenges routine use in rate-incompetent patients and supports refined selection criteria.
Osswald et al. (1996) studied this question.
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