Cognitive impairment in multiple system atrophy: Changing concepts

Abstract Multiple system atrophy (MSA) is characterized by a variable combination of cerebellar ataxia, parkinsonism and pyramidal signs associated with autonomic failure. Classically, cognitive impairment was not considered a clinical feature of MSA and dementia was pointed out as an exclusion diag...

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Bibliographic Details
Main Authors: Agessandro Abrahão, Livia Almeida Dutra, Pedro Braga Neto, José Luiz Pedroso, Ricardo Araújo de Oliveira, Orlando Graziani Povoas Barsottini
Format: Article
Language:English
Published: Associação Neurologia Cognitiva e do Comportamento
Series:Dementia & Neuropsychologia
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Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1980-57642011000400303&lng=en&tlng=en
Description
Summary:Abstract Multiple system atrophy (MSA) is characterized by a variable combination of cerebellar ataxia, parkinsonism and pyramidal signs associated with autonomic failure. Classically, cognitive impairment was not considered a clinical feature of MSA and dementia was pointed out as an exclusion diagnostic criteria. Based on comprehensive neuropsychological assessment, cognitive impairment was found to be a frequent feature in MSA, and clinically-defined dementia is now reported in 14-16% of cases. This article reviews the current data on cognitive impairment in MSA along with its neuropsychological profile and pathophysiology.
ISSN:1980-5764