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Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System
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Electromagnetic interference between external defibrillator and cardiac resynchronization therapy-pacemaker (CRT-P)

Hamid Ghanbari1, Hazim Al-Ameri, Jessica Ottino

  • 1Division of Cardiology, University of Michigan, Ann Arbor, Michigan, USA.

Pacing and Clinical Electrophysiology : PACE
|May 25, 2011
PubMed
Summary

Electromagnetic interference (EMI) from external defibrillators in standby mode can prevent interrogation of Boston Scientific cardiac resynchronization therapy-pacemakers (CRT-Ps). Disabling the defibrillator's standby pacing mode resolves this critical device communication issue.

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Published on: December 11, 2017

Area of Science:

  • Biomedical Engineering
  • Cardiology
  • Medical Device Technology

Background:

  • Implantable heart rhythm devices face electromagnetic interference (EMI) risks in hospital settings.
  • Ubiquitous EMI sources in hospitals can impact device function.
  • Understanding EMI sources is crucial for patient safety and effective device management.

Purpose of the Study:

  • To report cases of external defibrillator-induced EMI affecting Boston Scientific CRT-P devices.
  • To identify the specific conditions causing device interrogation failure.
  • To provide a solution for mitigating this identified EMI interaction.

Main Methods:

  • Documented three cases of interrogation failure with Boston Scientific CRT-P devices (H120/H125).
  • Investigated interference from Philips Heartstart XL and Hewlett-Packard Codemaster external defibrillators.
  • Observed that the external defibrillator's 'standby' pacing mode caused the EMI.

Main Results:

  • EMI from external defibrillators in 'standby' pacing mode prevented interrogation of Boston Scientific CRT-P devices.
  • Disabling the 'standby' pacing mode on the external defibrillator resolved the interrogation issue.
  • Failure to recognize this interaction could lead to incorrect device use and resource waste.

Conclusions:

  • A case series highlights EMI between Boston Scientific CRT-P devices and external defibrillators in standby pacing mode.
  • This interaction can impede device interrogation, potentially impacting patient care.
  • Recognizing and addressing this EMI is essential for appropriate device and resource management.