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Ventricular Fibrillation Simulated Electrocardiogram Artifact by a Deep Brain Stimulator.

Ryan P Strum¹, Ian R Drennan^2,3, Morgan Hillier⁴

¹Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Canada.

Prehospital Emergency Care

|March 22, 2023

Summary

Deep brain stimulators can cause false cardiac arrest signals on electrocardiograms. This case highlights how these devices can mimic ventricular fibrillation, potentially leading to dangerous medical decisions in emergencies.

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Area of Science:

Neurology
Cardiology
Biomedical Engineering

Background:

Deep brain stimulation (DBS) is a therapeutic intervention for neurological disorders.
Electrocardiogram (ECG) interpretation is crucial for diagnosing cardiac events.
Artifacts from medical devices can interfere with ECG readings.

Observation:

A case report details a deep brain stimulating device causing simulated ventricular fibrillation on an ECG.
This artifact occurred in the prehospital setting, complicating emergency assessment.
The simulated ventricular fibrillation was directly attributed to the DBS device's electrical activity.

Findings:

Deep brain stimulators can generate artifact that mimics life-threatening arrhythmias like ventricular fibrillation.
This specific type of artifact has not been previously documented in medical literature.
The simulation was characterized by specific ECG waveform patterns indicative of the DBS device's interference.

Implications:

Unrecognized DBS-induced artifact can lead to misdiagnosis of cardiac arrest.
This misdiagnosis may result in inappropriate and potentially harmful medical interventions.
Awareness among prehospital and emergency care providers is essential for accurate patient assessment.