Document Detail

Deep brain stimulation of the subthalamic nucleus improves temperature sensation in patients with Parkinson's disease.
MedLine Citation:
PMID:  21316148     Owner:  NLM     Status:  Publisher    
Patients with Parkinson's disease (PD) reportedly show deficits in sensory processing in addition to motor symptoms. However, little is known about the effects of bilateral deep brain stimulation of the subthalamic nucleus (STN-DBS) on temperature sensation as measured by quantitative sensory testing (QST). This study was designed to quantitatively evaluate the effects of STN-DBS on temperature sensation and pain in PD patients. We conducted a QST study comparing the effects of STN-DBS on cold sense thresholds (CSTs) and warm sense thresholds (WSTs) as well as on cold-induced and heat-induced pain thresholds (CPT and HPT) in 17 PD patients and 14 healthy control subjects. The CSTs and WSTs of patients were significantly smaller during the DBS-on mode when compared with the DBS-off mode (P<.001), whereas the CSTs and WSTs of patients in the DBS-off mode were significantly greater than those of healthy control subjects (P<.02). The CPTs and HPTs in PD patients were significantly larger on the more affected side than on the less affected side (P<.02). Because elevations in thermal sense and pain thresholds of QST are reportedly almost compatible with decreases in sensation, our findings confirm that temperature sensations may be disturbed in PD patients when compared with healthy persons and that STN-DBS can be used to improve temperature sensation in these patients. The mechanisms underlying our findings are not well understood, but improvement in temperature sensation appears to be a sign of modulation of disease-related brain network abnormalities. Quantitative evaluation on the effect of deep brain stimulation of the subthalamic nucleus on temperature sensation and pain suggested that it could improve impaired temperature sensation in patients with Parkinson's disease.
Tomoyuki Maruo; Youichi Saitoh; Koichi Hosomi; Haruhiko Kishima; Toshio Shimokawa; Masayuki Hirata; Tetsu Goto; Shayne Morris; Yu Harada; Takufumi Yanagisawa; Mohamed M Aly; Toshiki Yoshimine
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-2-10
Journal Detail:
Title:  Pain     Volume:  -     ISSN:  1872-6623     ISO Abbreviation:  -     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-2-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7508686     Medline TA:  Pain     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2010 International Association for the Study of Pain. Published by Elsevier B.V. All rights reserved.
Department of Neurosurgery, Osaka University Graduate School of Medicine, Osaka, Japan.
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