Arrhythmias & electrophysiologySecondary analysis
Battery longevity of a helix-fixation dual-chamber leadless pacemaker: results from the AVEIR DR i2i Study
- Secondary analysis of the Aveir DR i2i Study
- prospective
- multicentre
- international
Authors' conclusion
The first dual-chamber LP demonstrated adequate projected battery longevity after 12 months of use.
Study context
- Population
- Patients meeting dual-chamber pacing indications with a dual-chamber leadless pacemaker (de novo, non-revised, dual-chamber programmed devices)
- Participants
- 302 patients
- Comparison
- ALP vs VLP
- Primary endpoint
- Device battery longevity and contributing factors
- Follow-up
- 12 months post-implant
Primary result
As reported in the abstract
Battery longevity · 12 months
| Group | Value | Median total longevity |
|---|---|---|
| ALP | median 4.3 years | 5.3 years |
| VLP | median 9.1 years | 9.9 years |
Further findings
Factors correlated with ALP and VLP longevity
- Base rate, pulse amplitude, pacing percentage, event rate, impedance and i2i setting level significantly correlated with longevity
- P < 0.001
- i2i setting levels below 7 produced the greatest longevity savings
Original publication
Battery longevity of a helix-fixation dual-chamber leadless pacemaker: results from the AVEIR DR i2i Study. Europace. Published 6 June 2025. doi:10.1093/europace/euaf074
Summarised from the published abstract; every number is checked against it