Document Detail

Subtraction brain SPECT imaging in a patient with paroxysmal exercise-induced dystonia: role of the primary somatosensory cortex.
MedLine Citation:
PMID:  17998449     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Paroxysmal exercise-induced dystonia is a rare hyperkinetic disease characterized by episodic dystonic attacks after prolonged exercise. However, its pathophysiological and anatomical basis are poorly understood. OBJECTIVE: To explore the exact anatomical location responsible for paroxysmal exercise-induced dystonia by conducting ictal-interictal single-photon emission computed tomography subtraction, which was coregistered to the patient's own magnetic resonance image. DESIGN: This is a case report of a 16-year-old boy who developed a right foot dystonic attack following prolonged exercise. Result Subtraction single-photon emission computed tomographic imaging showed significantly increased cerebral perfusion in the medial aspect of the postcentral gyrus and mildly increased perfusion in the primary motor area and cerebellum during an attack of foot dystonia. CONCLUSIONS: The primary somatosensory cortex may be a relevant structure in paroxysmal exercise-induced dystonia. Paroxysmal exercise-induced dystonia may result from defective processing of sensory information.
Jung Han Yoon; Phil Hyu Lee; Suk Nam Yoon
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Archives of neurology     Volume:  64     ISSN:  0003-9942     ISO Abbreviation:  Arch. Neurol.     Publication Date:  2007 Nov 
Date Detail:
Created Date:  2007-11-13     Completed Date:  2008-01-24     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0372436     Medline TA:  Arch Neurol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1652-6     Citation Subset:  AIM; IM    
Department of Neurology, Ajou University School of Medicine, Woncheon-dong San 5, Yongtong-ku, Suwon, Kyunggi-do 442-749, South Korea.
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MeSH Terms
Brain Mapping
Dystonia / etiology,  pathology,  radionuclide imaging*
Exercise / physiology*
Somatosensory Cortex / radionuclide imaging*
Tomography, Emission-Computed, Single-Photon*

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