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Related Experiment Videos

Experience with microelectrode guided subthalamic nucleus deep brain stimulation.

Ramin Amirnovin1, Ziv M Williams, G Rees Cosgrove

  • 1Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.

Neurosurgery
|March 18, 2006
PubMed
Summary
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Microelectrode recording (MER) guided subthalamic nucleus (STN) deep brain stimulation (DBS) is a safe and effective surgical option for Parkinson disease. MER enhances electrode placement accuracy, improving outcomes for patients with Parkinson disease.

Area of Science:

  • Neurosurgery
  • Neurology
  • Medical Devices

Background:

  • Subthalamic deep brain stimulation (DBS) is a standard treatment for Parkinson disease.
  • Variability exists in surgical techniques for DBS implantation.
  • Microelectrode recording (MER) offers a method for precise targeting.

Purpose of the Study:

  • To detail the technique and outcomes of MER-guided subthalamic nucleus (STN) DBS.
  • To evaluate the role of MER in optimizing electrode placement.
  • To assess the safety and tolerability of the procedure.

Main Methods:

  • Forty patients received 70 STN DBS electrodes.
  • Stereotactic localization used MRI and CT imaging.
  • Physiological localization of the STN employed a 3-microelectrode array.

Related Experiment Videos

  • Final electrode placement confirmed by MER and macrostimulation.

    • Main Results:

    • Average STN trajectory: 5.6 mm (left), 5.7 mm (right).
    • MER modified the predicted location in 58% of cases.
    • Low complication rate (7 over 4 years), including hemorrhages, lead migration, and infections.
    • High patient discharge rate (85% home, 13% rehabilitation).

    Conclusions:

    • Simultaneous bilateral MER-guided STN DBS is safe and well-tolerated.
    • MER is crucial for accurate STN DBS electrode localization.
    • This technique improves surgical precision for Parkinson disease treatment.