iPhone 12 MagSafe technology and cardiac implantable devices: assessment of the actual risk

Authors: Federica Censi, Eugenio Mattei, Graziano Onder, Giovanni Calcagnini

Year: 2022 Jan 25

Category: Cardiology

Journal: Pacing Clin Electrophysiol

Institution: Pacing Clin Electrophysiol

DOI: 10.1111/pace.14450

URL: https://pubmed.ncbi.nlm.nih.gov/35076120/

Abstract

Abstract Summary: iPhone 12 MagSafe Technology and Cardiac Implantable Devices

Overview

Background: Pacemakers (PM) and implantable cardioverter defibrillators (ICD) incorporate magnetic sensors, which can be inadvertently activated by external magnets. The introduction of MagSafe in the iPhone 12 has sparked concerns about this activation as the magnet's proximity to these devices becomes more probable.

Objectives and Methods

Objective: This study evaluates the effect of the iPhone 12's MagSafe technology on various cardiac implantable devices. It examines these effects by measuring magnetic field levels and their influence.

Methods: Examining the magnetic interference of iPhone 12 MagSafe accessories on a comprehensive set of PMs and ICDs, specifically noting the interaction distance.

Findings

  • The study noted activation of the magnetic switch in devices up to a distance of 1 cm from iPhone 12.

Conclusion

Given the significant implications of magnetic switch activation, adherence to recommended safety distances (15 cm normal use, 30 cm during wireless charging) provided by Apple is essential. Additionally, patient education about these risks with iPhone 12 should be emphasized and further research is encouraged for upcoming models.

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