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Microelectrode Guided Implantation of Electrodes into the Subthalamic Nucleus of Rats for Long-term Deep Brain Stimulation
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[Surgical Procedure for Subthalamic Nucleus Deep Brain Stimulation(STN-DBS)].
1Department of Research and Therapeutics for Movement Disorders, Juntendo University School of Medicine.
No Shinkei Geka. Neurological Surgery
|August 11, 2021
Summary
Deep brain stimulation (DBS) precisely targets the subthalamic nucleus (STN) for Parkinson disease. Microelectrode recording confirms STN location for effective lead placement and symptom relief.
Area of Science:
- Neurosurgery
- Neurology
- Medical Technology
Background:
- Deep brain stimulation (DBS) of the subthalamic nucleus (STN) is a key surgical option for Parkinson disease.
- Accurate lead placement is crucial for effective treatment and minimizing side effects.
Purpose of the Study:
- To describe the methodology for precise subthalamic nucleus lead implantation in Parkinson disease patients.
- To highlight the role of imaging and electrophysiological guidance in DBS surgery.
Main Methods:
- Stereotactic surgery utilizing MRI for initial targeting, combining atlas-based and direct visualization.
- Surgical planning software for trajectory simulation.
- Intraoperative microelectrode recording for physiological identification of the STN (gold standard).
- Test stimulation to evaluate efficacy and safety before permanent implantation.
Main Results:
- Successful identification and lead placement within the STN using the described multimodal approach.
- Assessment of symptom relief and adverse effect thresholds during test stimulation.
Conclusions:
- Precise STN targeting via stereotactic surgery with microelectrode recording is essential for effective DBS in Parkinson disease.
- The described surgical workflow ensures accurate lead placement, optimizing therapeutic outcomes.
