Abstract

Abstract Summary

Overview

Electromagnetic interference (EMI) with cardiovascular implantable electronic devices (CIEDs) can potentially lead to device malfunctions, presenting significant health risks for patients. This study examines the interference mechanisms specifically involving static electric fields (SEF) and static magnetic fields (SMF).

Findings

• The study utilized a range of methodologies including literature reviews, numerical simulations, and medical product standard evaluations to establish interference thresholds.
• Four interference mechanisms for SMF were identified, with the magnetic safety switch (MSS) activation cited as the most critical, occurring at 0.8 mT.
• No SEF-induced interference mechanisms were found, indicating a potential safety under normal exposure conditions provided by body shielding.
• Motion-induced EMI was deemed less relevant compared to MSS activation, although it still poses a risk as it disrupts necessary therapy provided by CIEDs at 24.8 mT.

Conclusion

This study pinpoints crucial electromagnetic interference thresholds and suggests reconsidering the safety of trigger levels for MSS in the context of increasing prevalence of higher static magnetic fields in both professional and private environments. The findings underscore the need for ongoing research and potential innovation by device manufacturers to ensure patient safety amidst evolving technological landscapes.