How effective is bilateral subthalamic nucleus (STN) deep brain stimulation (DBS) in patients with Parkinson disease (PD)?

Updated: Aug 29, 2019
  • Author: Robert A Hauser, MD, MBA; Chief Editor: Selim R Benbadis, MD  more...
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A study by Foltynie assessed 79 consecutive patients who underwent bilateral subthalamic nucleus DBS at the National Hospital for Neurology and Neurosurgery using an MRI-guided surgical technique without microelectrode recording. [87] At a median follow-up period of 12-14 months, a mean improvement of 27.7 points (standard deviation, 13.8) was noted in the off-medication motor part of the Unified Parkinson Disease Rating Scale (UPDRS III), equivalent to a mean improvement of 52%. Significant improvements in dyskinesia duration, disability, and pain were noted. This suggests that in well-selected patients with Parkinson disease, image-guided STN DBS without microelectrode recording can lead to substantial improvements in motor disability and improvements in quality of life, with very low morbidity.

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