Influence of Intraoperative Microelectrode Recording in Deep Brain Stimulation

Area of Science:

• Neurosurgery
• Neurology
• Medical Devices

Background:

• Deep brain stimulation (DBS) is a key treatment for movement disorders.
• The role of intraoperative microelectrode recording (MER) in DBS is debated.
• Optimizing lead placement is crucial for DBS efficacy.

Purpose of the Study:

• To assess the impact of intraoperative MER on final lead position in STN and GPi DBS.
• To evaluate the complication rates associated with MER-guided DBS.

Main Methods:

• Retrospective chart review of 46 patients undergoing STN/GPi DBS with MER.
• Comparison of initial and final lead coordinates.
• Review of hemorrhagic and infectious complications.

Main Results:

• A statistically significant inferior shift of 0.40 mm (STN) and 0.96 mm (GPi) was observed.
• No intraparenchymal hemorrhages occurred.
• Postoperative seizures occurred in 7.4% of patients; 1.1% required revision for suboptimal response.

Conclusions:

• Intraoperative MER in STN and GPi DBS does not appear to increase surgical complications.
• MER may assist in achieving accurate final lead placement for DBS.
• MER-guided DBS offers a potentially valuable tool for precise lead targeting.