Why the study?
Does a two sensor pacemaker system using both QT interval and activity sensing improve rate adaptive behavior compared to each sensor alone in patients with pacemakers?
Population
9 patients with an implanted QT interval sensing pacemaker and an externally attached activity sensing…
Comparison
Two sensor rate adaptive pacemaker algorithm… vs Rate response of each sensor alone
Design
Case_series
Authors
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Dual QT-activity sensing may enhance physiological rate adaptation; leaves open outcome benefits pending randomized trials.
Does a two sensor pacemaker system using both QT interval and activity sensing improve rate adaptive behavior compared to each sensor alone in patients with pacemakers?
Combining QT interval and activity sensing in a dual-sensor pacemaker provides a more physiological rate response during exercise and recovery compared to single-sensor systems.
Landman et al. (1990) studied this question.
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