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Updated: May 11, 2026

Microelectrode Guided Implantation of Electrodes into the Subthalamic Nucleus of Rats for Long-term Deep Brain Stimulation
Published on: October 2, 2015
Conversion of local anesthesia-guided deep brain stimulation of the subthalamic nucleus to general anesthesia
Ersoy Kocabicak1, Dursun Aygun, Onur Alptekin
1Department of Neurosurgery, Ondokuz Mayıs University, Samsun, Turkey. ersoykocabicak@gmail.com
Background:
Deep brain stimulation of the subthalamic nucleus (STN) is a widely applied procedure in the treatment of patients with advanced Parkinson disease and is generally performed under local anesthesia. Here we report our experience with the conversion to general anesthesia in two patients with advanced Parkinson disease because of fear reactions intraoperatively.
Case Description:
Patients received general anesthesia with propofol and were implanted with electrodes at the level of STN guided by multiple-microelectrode electrophysiological recordings after obtaining informed consent. During the recordings the propofol levels were reduced. Postoperative clinical assessments showed marked improvements of motor disability with significant reductions of dopaminergic medication.
Conclusion:
Our case observations document the possibility of fear reactions intraoperatively and show the possibility of conversion to general anesthesia with a successful outcome.
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