Hayashi Yusuke, Takagi Masahiko, Kakihara Jun, Tatsumi Hiroaki, Atsushi Doi, Yoshiyama Minoru
Department of Cardiovascular Medicine, Osaka City University Graduate School of Medicine, Osaka, Japan.
J Cardiol Cases. 2017 Apr 15;15(6):184-186. doi: 10.1016/j.jccase.2017.02.007. eCollection 2017 Jun.
Device failure from unexpected battery depletion is uncommon but can be life-threatening. Lithium cluster formation at the cathode is a novel mechanism of sudden implantable cardioverter-defibrillator (ICD) battery depletion that was first reported in 2014. We report a rare case of a 78-year-old woman with an ICD battery failure due to lithium cluster formation. Although she had never received ICD therapy, the battery voltage had dropped from 2.9 V to 2.54 V (end of life) unexpectedly for only 2 days. The prevalence of this rare phenomenon was reported to be 0.004% in 2014. However, it had gone up to 0.21% in October 2016. Both device manufacturers and clinicians should be aware of this phenomenon, and remote monitoring systems and vibratory patient notifier alerts should be considered for early detection and early treatment. < Lithium cluster formation is a novel mechanism of premature ICD battery depletion that was first reported in 2014. Although the prevalence of this rare phenomenon was first reported as 0.004% in 2014, according to the data of St. Jude Medical, it had gone up to 0.21% in October 2016. We should be aware of this rare but important phenomenon and use remote monitoring systems and vibratory patient notifier alerts for early detection and treatment.>.
意外电池耗尽导致的设备故障并不常见，但可能危及生命。阴极处锂簇的形成是可植入式心脏复律除颤器（ICD）电池突然耗尽的一种新机制，于2014年首次报道。我们报告了一例罕见的78岁女性因锂簇形成导致ICD电池故障的病例。尽管她从未接受过ICD治疗，但电池电压仅在2天内就意外地从2.9 V降至2.54 V（使用寿命结束）。据报道，这种罕见现象的发生率在2014年为0.004%。然而，到2016年10月已升至0.21%。设备制造商和临床医生都应意识到这种现象，应考虑使用远程监测系统和振动式患者通知警报进行早期检测和早期治疗。<锂簇形成是ICD电池过早耗尽的一种新机制，于2014年首次报道。尽管这种罕见现象的发生率在2014年首次报道为0.004%，但根据圣犹达医疗公司的数据，到2016年10月已升至0.21%。我们应意识到这种罕见但重要的现象，并使用远程监测系统和振动式患者通知警报进行早期检测和治疗。>
