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Deep brain stimulation for essential tremor

J P Hubble1, K L Busenbark, S Wilkinson

  • 1Department of Neurology, University of Kansas Medical Center, Kansas City, USA.

Neurology
|April 1, 1996
PubMed
Summary
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Deep brain stimulation (DBS) effectively reduced essential tremor (ET) and improved daily function in patients. This 6-month study found DBS safe and beneficial for medication-refractory ET symptoms.

Area of Science:

  • Neurology
  • Neurosurgery

Background:

  • Essential tremor (ET) is a common neurological disorder causing disabling tremors.
  • Medication-refractory ET significantly impacts patients' quality of life.
  • Deep brain stimulation (DBS) is an emerging treatment option for severe ET.

Purpose of the Study:

  • To evaluate the efficacy and safety of DBS in treating essential tremor.
  • To assess the impact of DBS on functional disability in ET patients.

Main Methods:

  • Ten patients with medication-refractory ET underwent stereotactic implantation of a DBS lead in the Vim thalamic nucleus.
  • A 6-month open-label follow-up study was conducted.
  • Clinical Tremor Rating Scale and disability assessments were performed at baseline and at 1, 3, and 6 months.

Related Experiment Videos

Main Results:

  • Significant improvements were observed in patient-reported activities (dressing, drinking, eating, bathing, handwriting).
  • Examiner-rated assessments showed significant improvements in tremor severity, writing, pouring, and drawing.
  • These improvements were sustained throughout the 6-month follow-up period.
  • Global disability significantly decreased, though one patient with specific hand-finger tremor showed no change.

Conclusions:

  • Deep brain stimulation (DBS) is an effective and safe treatment for reducing tremor and functional disability in essential tremor patients.
  • DBS offers a viable therapeutic option for individuals with disabling, medication-refractory ET.