Key result
Stored electrograms in single-lead VDD systems revealed a 69% rate of event misdiagnosis by pacemaker counters, unmasking unsuspected intermittent under- or oversensing.
Why the study?
Do stored intracardiac electrograms improve the diagnostic accuracy of event detection compared to counters alone in patients with single-lead VDD systems?
Population
46 patients with atrioventricular block
Comparison
VDD pacemaker system with stored intracardiac… vs Pacemaker event counters without stored…
Design
Cohort
Follow-up
6 months
Authors
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Reliance on counters alone risks misdiagnosis in VDD systems; leaves open whether routine electrogram review improves outcomes.
Observational (n=46)
Yes
Do stored intracardiac electrograms improve the diagnostic accuracy of event detection compared to counters alone in patients with single-lead VDD systems?
Stored electrograms in VDD pacemakers are essential for accurate event diagnosis, as relying solely on device counters leads to a high rate of misdiagnosis due to sensing errors.
Israel et al. (2000) conducted an observational in Atrioventricular block (n=46). Stored electrograms (EGMs) in a VDD pacemaker was evaluated on Event misdiagnosis by the pacemaker. Stored electrograms in single-lead VDD systems revealed a 69% rate of event misdiagnosis by pacemaker counters, unmasking unsuspected intermittent under- or oversensing.
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