Why the study?
Does 1 month of ventricular pacing induce repolarization changes underlying long-term cardiac memory in adults with structurally normal hearts and dual-chamber pacemakers?
Does 1 month of ventricular pacing induce repolarization changes underlying long-term cardiac memory in adults with structurally normal hearts and dual-chamber pacemakers?
Right ventricular pacing induces long-term cardiac memory characterized by action potential prolongation near the pacing site and increased dispersion of repolarization, which may be arrhythmogenic.
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May indicate arrhythmogenic repolarization changes after ventricular pacing; hypothesis-generating for arrhythmia risk in normal hearts.
Marrus et al. (2012) studied this question.
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