Patel Harshil, Whitler Cameron, Foster Nathan, Bradley Christopher, Shah Dipak, Machado Christian
Division of Cardiology, Ascension Providence Hospital/MSUCHM, Southfield, MI, USA.
J Innov Card Rhythm Manag. 2022 Jul 15;13(7):5070-5072. doi: 10.19102/icrm.2022.130702. eCollection 2022 Jul.
The iPhone 12 series (Apple, Inc., Cupertino, CA, USA) contains a circular array of magnets around a central charging coil (compatible with "Magsafe" technology). The device was recently reported to have magnetic interference with implantable cardioverter-defibrillators (ICDs). We sought to test the electromagnetic interference of the iPhone 12 in inhibiting life-saving therapies of ICDs in clinical settings. After obtaining written informed consent, an iPhone 12 was placed over the device generators of 17 patients in the ICD clinic. Device interrogation was performed immediately before and after placing the iPhone over the ICD generator to evaluate for any inhibition of device therapies. To emulate a real-world scenario, the iPhone 12 was not placed directly over the skin above the device generator but instead was positioned over the patients' clothes. None of the device interrogations revealed interruption of device therapies due to the iPhone. We concluded that, despite the iPhone having shown in vitro interference of ICD functioning, its effects are not clinically relevant in vivo. Larger studies need to be performed to confirm this finding and guide safety recommendations regarding the use of iPhones containing magnets by patients with implanted ICDs.
iPhone 12系列（美国加利福尼亚州库比蒂诺市苹果公司）在中央充电线圈周围有一圈环形排列的磁铁（与“磁吸”技术兼容）。最近有报道称该设备会对植入式心脏复律除颤器（ICD）产生磁干扰。我们试图测试iPhone 12在临床环境中对ICD挽救生命治疗的电磁干扰。在获得书面知情同意后，将一部iPhone 12放置在ICD门诊17名患者的设备发生器上方。在将iPhone放置在ICD发生器上方之前和之后立即进行设备问询，以评估是否有对设备治疗的任何抑制。为模拟真实场景，iPhone 12没有直接放置在设备发生器上方的皮肤上，而是放置在患者衣服上。没有一次设备问询显示iPhone导致设备治疗中断。我们得出结论，尽管iPhone在体外显示出对ICD功能的干扰，但其影响在体内并无临床相关性。需要进行更大规模的研究来证实这一发现，并指导关于植入ICD的患者使用含磁铁iPhone的安全建议。
