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Functional Movement Disorders and Deep Brain Stimulation: A Multi-Center Study.

Luca Marsili1, Elizabeth G Keeling2,3, Ricardo Maciel4,5

  • 1Gardner Family Center for Parkinson's disease and Movement Disorders Cincinnati Ohio USA.

Movement Disorders Clinical Practice
|January 27, 2023
PubMed
Summary
This summary is machine-generated.

Functional movement disorders (FMD) can occur after deep brain stimulation (DBS) for Parkinson's disease. Patients with FMD undergoing DBS may have higher psychiatric comorbidity and worse outcomes.

Keywords:
deep brain stimulationfunctional movement disorderssurgery

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Area of Science:

  • Neurology
  • Neurosurgery

Background:

  • Functional movement disorders (FMD) are often under-recognized in neurodegenerative diseases.
  • FMD can occur in patients receiving deep brain stimulation (DBS) for Parkinson's disease (PD) and other movement disorders.
  • The prevalence of FMD in DBS patients is not well-established.

Purpose of the Study:

  • To determine the prevalence and clinical characteristics of FMD in patients undergoing DBS for movement disorders.
  • To compare patients with FMD post-DBS (FMD+) to those without (FMD-).

Main Methods:

  • Retrospective assessment of FMD prevalence and characteristics in PD and dystonia patients post-DBS.
  • Comparison of 29 FMD+ patients with 29 matched FMD- patients.

Main Results:

  • FMD prevalence varied by center (0.2%-2.1%).
  • Nine of 29 FMD+ patients reported worse outcomes after DBS.
  • FMD+ patients exhibited higher psychiatric comorbidity than FMD- patients.

Conclusions:

  • DBS can be complicated by FMD development in some patients.
  • Pre-morbid psychiatric conditions may increase the risk of FMD post-DBS.