Bilateral thalamic deep brain stimulation

Midline tremor control

J. D. Pulzke, K. J. Uitti, A. A. Obwegeser, Zbigniew K Wszolek, R. E. Wharen

Research output: Contribution to journalArticle

65 Citations (Scopus)

Abstract

Objectives: To determine the efficacy of bilateral deep brain stimulation (DBS) for management of midline tremor (head, voice, tongue, trunk) in patients with essential tremor. Design: Prospective assessment of tremor at baseline (presurgical), and postoperatively at 1, 3, and 12 months, and annually thereafter. Methods: A clinical series of 22 individuals undergoing staged, bilateral DBS for treatment of essential tremor. The tremor rating scale was the primary outcome measure. Resulfs: Midline tremor showed significant improvement with stimulation "on" at nearly every postoperative interval when compared with stimulation "off" and with baseline tremor. Bilateral stimulation was associated with a significant incremental improvement in midline tremor control compared with unilateral stimulation: average "stimulation on" percentage change in midline tremor from the unilateral to bilateral period was 81%. Head and voice tremor showed the most consistent improvement. Among those requiring a change in stimulation parameters because of side effects, dysarthria, disequilibrium, motor disturbances, and paraesthesiae were the most common. Dysarthria was more common with bilateral (n = 6; 27%) than with unilateral (n = 0) stimulation. Stimulation parameters remained largely unchanged after the first three months. Nine of 44 leads placed (20%) required subsequent repositioning or replacement. Conclusions: Unilateral thalamic stimulation significantly improves midline tremor, and subsequent bilateral thalamic stimulation offers an additional incremental improvement in midline tremor control.

Original languageEnglish (US)
Pages (from-to)684-690
Number of pages7
JournalJournal of Neurology, Neurosurgery and Psychiatry
Volume76
Issue number5
DOIs
StatePublished - May 2005

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Deep Brain Stimulation
Tremor
Essential Tremor
Dysarthria
Head
Paresthesia
Tongue
Outcome Assessment (Health Care)

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Neuroscience(all)
  • Neuropsychology and Physiological Psychology

Cite this

Bilateral thalamic deep brain stimulation : Midline tremor control. / Pulzke, J. D.; Uitti, K. J.; Obwegeser, A. A.; Wszolek, Zbigniew K; Wharen, R. E.

In: Journal of Neurology, Neurosurgery and Psychiatry, Vol. 76, No. 5, 05.2005, p. 684-690.

Research output: Contribution to journalArticle

Pulzke, J. D. ; Uitti, K. J. ; Obwegeser, A. A. ; Wszolek, Zbigniew K ; Wharen, R. E. / Bilateral thalamic deep brain stimulation : Midline tremor control. In: Journal of Neurology, Neurosurgery and Psychiatry. 2005 ; Vol. 76, No. 5. pp. 684-690.
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