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Targeting Neuronal Fiber Tracts for Deep Brain Stimulation Therapy Using Interactive, Patient-Specific Models
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Subthalamic stimulation for cervical dystonia.

Alok Gupta1

  • 1Metro Heart Institute with Multispecialty, Sector 16A, Faridabad, Haryana, 121007, India. alokg7823@gmail.com.

Acta Neurochirurgica
|February 9, 2020
PubMed
Summary
This summary is machine-generated.

Subthalamic nucleus deep brain stimulation (DBS) offers significant improvement for cervical dystonia patients unresponsive to globus pallidus internus DBS. This treatment showed substantial symptom reduction and no cognitive decline in a 3-year follow-up.

Keywords:
Deep brain stimulationDystoniaMovement disordersSubthalamusSurgery

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Area of Science:

  • Neurology
  • Neurosurgery
  • Movement Disorders

Background:

  • Globus pallidus internus (GPi) deep brain stimulation (DBS) is a standard treatment for severe, medication-refractory dystonia.
  • Primary cervical dystonia patients sometimes show inadequate response to GPi DBS.

Observation:

  • This study investigated bilateral subthalamic nucleus (STN) DBS in two patients with medically refractory primary cervical dystonia.
  • Patients were monitored for over three years using the Toronto Western Spasmodic Torticollis Rating Scale (TWSTRS) and Mini-Mental State Examination (MMSE).

Findings:

  • Both patients experienced immediate and significant improvement, with 74% and 84.3% reduction in TWSTRS scores, respectively.
  • Subthalamic nucleus DBS was well-tolerated with no adverse effects or mental status deterioration (MMSE scores remained stable).
  • Previous pallidal lesion did not negatively impact outcomes in one patient.

Implications:

  • Bilateral STN DBS is a safe and effective alternative for primary cervical dystonia when GPi DBS is insufficient.
  • STN DBS offers a promising therapeutic option for complex dystonia cases, preserving cognitive function.