Hyperhidrosis due to deep brain stimulation in a patient with essential tremor. Case report.

Diamond, Alan; Kenney, Christopher; Almaguer, Michael; Jankovic, Joseph · J Neurosurg · 2007

case_report · Level V

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Abstract

The authors present a unique case of hyperhidrosis as a side effect of a misplaced deep brain stimulation (DBS) electrode near the ventrointermedius (Vim) nucleus in a patient with essential tremor. Magnetic resonance imaging of the brain showed electrode placement in the left anterior thalamus traversing the hypothalamus. High-frequency electrical stimulation possibly resulted in unilateral activation of the efferent sympathetic pathways in the zona incerta. Although a rare complication, hypothalamic dysfunction may occur as a stimulation-related side effect of Vim-DBS.

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