Battery Longevity in Modern Implantable Cardioverter-Defibrillators and Cardiac Resynchronization Therapy-Defibrillators

IF 1.7 Q2 CARDIAC & CARDIOVASCULAR SYSTEMS

Journal of Arrhythmia Pub Date : 2025-08-15 DOI:10.1002/joa3.70175

Kotaro Nishino, Taro Temma, Masaya Watanabe, Motoki Nakao, Masahiro Kawasaki, Kintaro Shimano, Kei Kawakami, Shota Saito, Jiro Koya, Daishiro Tatsuta, Hiroyuki Natsui, Takuya Koizumi, Takahide Kadosaka, Taro Koya, Kiwamu Kamiya, Toshiyuki Nagai, Toshihisa Anzai

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Abstract

Background

Battery longevity in high-voltage devices (HVDs), specifically implantable cardioverter-defibrillators (ICDs) and cardiac resynchronization therapy-defibrillators (CRT-Ds), is critical for reducing the frequency of generator replacements, minimizing procedural risks, and enhancing patient outcomes. Despite technological advancements, significant variability in battery performance remains among the major manufacturers. This study aimed to evaluate the battery longevity among ICDs and CRT-Ds from the major manufacturers implanted at a single institution and identify the factors influencing battery depletion.

Methods

We conducted a retrospective analysis of 353 patients implanted with HVDs (63 Abbott, 150 Boston Scientific, 140 Medtronic) at Hokkaido University Hospital between 2012 and 2021. Kaplan–Meier curves and Cox proportional hazards models were used to analyze the device longevity, with a primary endpoint of the time to battery depletion, defined by the elective replacement indicator. A multivariate analysis adjusted for the potential confounders.

Results

Boston Scientific devices exhibited a significantly longer battery life than Abbott and Medtronic devices (p < 0.001), with a 6-year replacement-free survival of 99% for ICDs and 93% for CRT-Ds. A multivariate analysis identified the device manufacturer, device type (ICD vs. CRT-D), and ventricular pacing rate as independent predictors of battery depletion (p < 0.001).

Conclusion

Battery longevity differed significantly by the manufacturer, which may influence device selection. Devices with a longer battery life may help reduce the replacement frequency and could potentially contribute to improved patient outcomes and cost-effectiveness.

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现代植入式心律转复除颤器和心脏再同步治疗除颤器的电池寿命

高压设备（hvd），特别是植入式心律转复除颤器（ICDs）和心脏再同步治疗除颤器（CRT-Ds）的电池寿命对于降低发电机更换频率、最小化手术风险和提高患者预后至关重要。尽管技术进步，但主要制造商的电池性能仍然存在显著差异。本研究旨在评估在单一机构植入的主要制造商的icd和crt - d的电池寿命，并确定影响电池耗尽的因素。方法回顾性分析北海道大学医院2012年至2021年间353例植入hvd的患者（63例雅培，150例波士顿科学，140例美敦力）。Kaplan-Meier曲线和Cox比例风险模型用于分析设备寿命，主要终点为电池耗尽时间，由可选更换指标定义。对潜在混杂因素进行多变量分析。结果：Boston Scientific设备的电池寿命明显长于雅培和美敦力设备（p < 0.001）， icd的6年无更换生存率为99%，crt - d为93%。一项多变量分析确定了设备制造商、设备类型（ICD vs. CRT-D）和心室起搏率是电池耗尽的独立预测因素（p < 0.001）。结论不同厂家的电池寿命差异较大，可能影响设备的选择。电池寿命较长的设备可能有助于减少更换频率，并可能有助于改善患者的治疗效果和成本效益。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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