Why the study?
Does the Prism-CLR rate responsive pacemaker provide appropriate rate increase and automatic output regulation in patients requiring rate responsive pacing?
Does the Prism-CLR rate responsive pacemaker provide appropriate rate increase and automatic output regulation in patients requiring rate responsive pacing?
The Prism-CLR pacemaker provides effective rate-responsive pacing, though its automatic output regulation algorithm may require modification in some patients.
Supports Prism-CLR evaluation for rate response; leaves open automatic output regulation reliability in larger studies.
Prism-CLR is a new single chamber unipolar pace, bipolar or unipolar sense, rate responsive pacemaker that utilizes a closed-loop system based on the analysis of the evoked potential for rate adjustment. It also has an automatic output regulation feature for capture verification and threshold search. Five patients in whom this pacemaker was implanted exhibited an appropriate rate increase with exercise and psychological stress. Automatic output regulation functioned appropriately in three of five patients. Preliminary data suggest that Prism-ClR is an effective pacemaker for patients who may benefit from rate responsive pacing. The automatic output regulation recognition algorithm may need modification in some patients.
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Singer et al. (1989) studied this question.
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