Interference thresholds for active implantable cardiovascular devices in occupational low-frequency electric and magnetic fields: a numerical and in vitro study

Authors: Zhou M, Kourtiche D, Claudel J, Deschamps F, Magne I, Roth P, Schmitt P, Souques M, Nadi M

Year: 2022 Jun

Category: Biomedical Engineering

Journal: Med Eng Phys

DOI: 10.1016/j.medengphy.2022.103799

URL: https://pubmed.ncbi.nlm.nih.gov/35641069/

Abstract

Overview

This study focuses on the safety concerns for workers with active implantable medical devices (AIMDs), particularly under the influence of 50/60 Hz electromagnetic fields (EMFs) encountered in occupational environments.

Findings

  • The study tested 58 AIMDs including pacemakers (PMs) and implantable cardiac defibrillators (ICDs) to assess their immunity to high-voltage electric fields (EFs) and magnetic fields (MFs).
  • Numerical simulations and anatomical models were used alongside experimental setups involving Helmholtz coils and aluminum plates to create controllable and reproducible EMF exposure conditions.
  • Recorded thresholds for EMI indicate no device dysfunction among the tested ICDs within the applied MF levels. However, EF exposures revealed potential risks below the occupational safety levels suggested in ICNIRP 2010 guidelines.

Conclusion

Potential hazards are identified for PMs and ICDs under certain EF conditions suggesting a thorough review of occupational safety guidelines considering EMF exposure risks for workers with AIMDs.

EMI AIMDs electromagnetic fields occupational safety cardiovascular devices numerical study in vitro
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