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Related Experiment Videos

Interference by cellular telephone with an implantable loop recorder.

Alexandre Trigano1, Olivier Blandeau, Samuel Levy

  • 1Department of Cardiology, Centre Hospitalier Universitaire Nord, Marseille, France. alexandre.trigano@mail.ap-hm.fr

Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing
|May 6, 2005
PubMed
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Cellular telephones can interfere with implanted loop recorders, causing artifacts in recorded data. This interference was observed when a phone was placed near the device and confirmed in lab tests.

Area of Science:

  • Biomedical Engineering
  • Medical Device Technology
  • Electromagnetic Compatibility

Background:

  • Implanted loop recorders (ILRs) are crucial for long-term cardiac monitoring.
  • Ensuring the integrity of ILR data is vital for accurate diagnosis and patient management.
  • Potential electromagnetic interference (EMI) sources require thorough investigation.

Observation:

  • Interference was observed between an implanted loop recorder and a cellular telephone.
  • The interference occurred when the cellular telephone was positioned over the subcutaneous pocket housing the ILR.
  • Artifacts were automatically recorded and stored in the ILR memory during phone ringing.

Findings:

  • Cellular telephone proximity to the ILR pocket can induce signal artifacts.

Related Experiment Videos

  • The observed interference phenomenon was reproducible in ex vivo testing.
  • The ringing signal of the cellular telephone was identified as the trigger for the artifact.

    • Implications:

    • Clinicians should be aware of potential interference between mobile phones and ILRs.
    • Patients with ILRs may need guidance on mobile phone usage near their device.
    • Further research into shielding or device design modifications may be warranted to mitigate EMI.