Arrhythmias & electrophysiology
Variability in implantable cardioverter-defibrillator battery longevity
Authors' conclusion
ICD battery longevity varied substantially across device type (2-3 years less per additional lead) and by manufacturer (2-3 year differences). Newer devices had markedly improved longevity (2-4 years). Factors most associated with longevity were manufacturer, programmed pulse width, and programmed output.
Study context
- Population
- Implantable cardioverter-defibrillator (ICDs) implanted between 2003 and 2023
- Participants
- 15,029 / 10,822 / 17,247
- Comparison
- Kaplan-Meier survival curves and device parameters across manufacturers
- Single-chambern = 15,029
- Dual-chambern = 10,822
- Biventricularn = 17,247
- Outcome
- Battery longevity per additional lead
Main finding
As reported in the abstract
Each additional lead resulted in ≈2-3 years of lost battery longevity
2-3 years
Further findings
Longevity by manufacturer among devices reaching replacement interval (RI)
- Boston Scientific (BSX) transvenous had the longest longevity for single-chamber, dual-chamber, and biventricular ICDs
- 2-3 years
Device parameters across manufacturers
- Device parameters did not substantially vary across manufacturers
Estimated vs observed longevity among devices reaching RI
- Estimated and observed longevity were similar for all manufacturers
Estimated longevity, ICDs implanted in the last 2 years
- Estimated longevity improved with attenuated differences between manufacturers
- 2-4 years
Determinants of longevity
- Manufacturer, programmed pulse width, and programmed output were the strongest determinants of longevity
Original publication
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