March 1, 1993Pacing and Clinical Electrophysiology
ICD Data Storage: Value in Arrhythmia Management
Design
Review
Authors
Discussion
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Member takes
Implication
ICD diagnostics aid event adjudication in practice; leaves open standardized criteria and outcome trials.
Key Points
- To review the clinical value, diagnostic capabilities, and limitations of stored electrogram and interval data retrieved from modern implantable cardioverter-defibrillators during arrhythmia management.
- Assessed diagnostic functions of latest-generation implantable cardioverter-defibrillators (ICDs) through post-event device interrogation.
- Evaluated stored data modalities including R-to-R interval logs, local bipolar electrograms from sensing leads, and wide bipolar electrograms from energy-delivering leads.
- ICD interrogation reliably identifies the occurrence of ventricular arrhythmias and verifies which specific therapies successfully terminated the event.
- Stored local and wide bipolar electrograms provide visual confirmation of tachyarrhythmias and clarify the electrical mechanisms triggering therapeutic delivery.
Structured PICO
I
Intervention
Implantable defibrillator data storage and interrogation
ICD data storage provides valuable diagnostic information, including electrograms and R-R intervals, to confirm ventricular tachyarrhythmic events and guide arrhythmia management.
Cite This Study
Marchlinski et al. (1993) studied this question.