Document Detail

Pattern of brain tissue loss associated with freezing of gait in Parkinson disease.
MedLine Citation:
PMID:  22282641     Owner:  NLM     Status:  Publisher    
OBJECTIVE:To investigate whether a specific pattern of gray matter (GM) tissue loss is associated with freezing of gait (FOG) in patients with Parkinson disease (PD). METHODS:Seventeen patients with PD with FOG (PD-FOG), 20 patients with PD with no FOG (PD-noFOG), and 34 healthy control subjects were recruited. PD-FOG and PD-noFOG patients were matched on an individual basis for age, disease duration, and Hoehn and Yahr stage. Patients were also administered a comprehensive neuropsychological battery focused on executive functions. The extent and distribution of GM atrophy were assessed using voxel-based morphometry. RESULTS:In patients with PD, the severity of FOG correlated with frontal executive deficits. Compared with healthy control subjects, PD-FOG patients showed a distributed pattern of GM atrophy including the dorsolateral prefrontal, medial, and lateral temporal, inferior parietal, and occipital cortices. PD-noFOG patients showed only small regions of GM atrophy in the bilateral frontal and temporal cortex. The left inferior frontal gyrus, left precentral gyrus, and left inferior parietal gyrus were more atrophic in PD-FOG patients relative to both healthy control subjects and PD-noFOG patients. In PD-FOG patients, the severity of FOG was associated with GM volumes of the frontal and parietal cortices bilaterally. CONCLUSIONS:GM frontal and parietal atrophy occur in PD-FOG patients. FOG in PD seems to share with executive dysfunction and perception deficits a common pattern of structural damage to the frontal and parietal cortices.
V S Kostic; F Agosta; M Pievani; E Stefanova; M Jecmenica-Lukic; A Scarale; V Spica; M Filippi
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-1-25
Journal Detail:
Title:  Neurology     Volume:  -     ISSN:  1526-632X     ISO Abbreviation:  -     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-1-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401060     Medline TA:  Neurology     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
From the Department of Neurology (V.S.K., E.S. M.J.-L., V.S.), School of Medicine, University of Belgrade, Belgrade, Serbia; and Neuroimaging Research Unit (F.A., M.P., A.S., M.F.), Institute of Experimental Neurology, Division of Neuroscience, San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy.
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