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Related Experiment Videos

Interactions between pacemakers and security systems

A Wilke1, T Kruse, H Hesse

  • 1Department of Internal Medicine, Philipps University, Marburg, Germany.

Pacing and Clinical Electrophysiology : PACE
|September 23, 1998
PubMed
Summary
This summary is machine-generated.

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Modern security systems can interfere with pacemaker function. Patients with pacemakers should use bipolar systems and avoid high-field security devices to prevent malfunction.

Area of Science:

  • Biomedical Engineering
  • Cardiology
  • Electromagnetics

Background:

  • Electromagnetic fields (EMF) from various sources can disrupt pacemaker operation.
  • Modern security systems emit EMF that may pose risks to pacemaker patients.

Purpose of the Study:

  • To evaluate interactions between modern security systems and different pacemaker types.
  • To assess the impact of EMF from security devices on pacemaker function.

Main Methods:

  • Fifty-three patients with single and dual-chamber pacemakers were monitored using a six-channel ECG.
  • Patients walked through security systems (antitheft, electromagnetic access) with varying field strengths.
  • Pacemaker function was assessed in basic modes, with increased pacing rate, and maximum sensitivity settings.

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Main Results:

  • Pacemaker malfunction occurred in 13% of patients in the highest field strength security system (2,700 mA/m).
  • Lower field strength (1,600 mA/m) caused malfunction in 4% of patients.
  • No dysfunctions were observed with antitheft (50 mA/m) or electromagnetic access (300 mA/m) devices, or with bipolar sensing pacemakers.

Conclusions:

  • High-field security systems can induce pacemaker malfunction, including mode switching.
  • Bipolar sensing pacemakers and lower-field devices appear safe.
  • Patients with pacemakers should exercise caution around security systems, and bipolar systems are recommended for those frequently near them.