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Related Experiment Videos

Electrocardiogram artifacts caused by deep brain stimulation.

Constantine Constantoyannis1, Brett Heilbron, Christopher R Honey

  • 1Division of Neurosurgery, University of British Columbia, Vancouver, Canada.

The Canadian Journal of Neurological Sciences. Le Journal Canadien Des Sciences Neurologiques
|September 21, 2004
PubMed
Summary
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Deep brain stimulation (DBS) can cause electrocardiogram (ECG) artifacts with monopolar settings. Bipolar settings or turning DBS off prevents these artifacts, ensuring accurate ECG interpretation.

Area of Science:

  • Neurology
  • Cardiology
  • Biomedical Engineering

Background:

  • Deep brain stimulation (DBS) is a common therapy for neurological conditions like movement disorders and chronic pain.
  • Electrocardiogram (ECG) monitoring is crucial for patient assessment, but can be affected by medical devices.
  • Potential interference of DBS with ECG readings requires investigation.

Purpose of the Study:

  • To identify electrocardiogram (ECG) artifacts caused by deep brain stimulation (DBS).
  • To determine factors influencing DBS-induced ECG artifacts, including patient disease, electrode location, and stimulation type.

Main Methods:

  • Prospective study involving 12 patients with deep brain stimulators.
  • ECG recordings were taken with DBS both 'on' and 'off'.

Related Experiment Videos

  • Cardiologists analyzed ECGs for artifacts, blinded to patient and DBS status.

    • Main Results:

    • All 6 patients using monopolar DBS settings exhibited significant ECG artifacts.
    • No artifacts were observed in the 6 patients using bipolar DBS settings.
    • Electrode position and patient disease did not influence ECG artifact presence.

    Conclusions:

    • Monopolar deep brain stimulation settings can induce significant ECG artifacts.
    • Bipolar DBS settings and deactivating DBS eliminate ECG artifacts.
    • Awareness of DBS-induced ECG artifacts is vital for accurate cardiac interpretation.