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Related Experiment Video

Updated: Dec 29, 2025

Author Spotlight: Assessing Ischemic Stroke Damage Through Middle Cerebral Artery Occlusion Model

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DBS dysfunction mimicking transient ischemic attacks-a case report.

Niels Allert¹, Wei Jin², Xanthi Toulaki²

¹Neurological Rehabilitation Center Godeshoehe, Waldstrasse 2-10, 53177, Bonn, Germany. allert@godeshoehe.de.

Acta Neurochirurgica

|February 9, 2020

Summary

Deep brain stimulation (DBS) device malfunction caused transient neurological symptoms in an essential tremor patient. Prompt surgical revision resolved the issue, highlighting the need for awareness among emergency physicians.

Keywords:

Deep brain stimulation Electrode dysfunction Impedance Stroke Transient ischemic attack

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Area of Science:

Neurology
Neurosurgery
Biomedical Engineering

Background:

Essential tremor is a common neurological disorder.
Deep brain stimulation (DBS) is an effective treatment for essential tremor.
Thalamic DBS targets specific brain regions to modulate abnormal neural activity.

Observation:

A patient with thalamic DBS for essential tremor presented with transient vertigo, dysarthria, and gait disturbance.
Initial diagnosis considered transient ischemic attacks, but symptoms fluctuated.
High monopolar impedances in the right-hemispheric electrode contacts were detected at a DBS center.

Findings:

Surgical revision revealed a fractured pocket adaptor connecting the DBS electrode to the impulse generator.
Replacement of the fractured component led to stable impedances.
Neurological symptoms completely remitted after the surgical repair.

Implications:

Technical malfunctions in DBS systems can mimic neurological events like transient ischemic attacks.
Emergency and stroke physicians should consider DBS device integrity when evaluating patients with neurological symptoms.
Awareness of potential DBS hardware failures is crucial for accurate diagnosis and timely management.