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Vol. 18, No. 2, 2004
Issue release date: August 2004
Dement Geriatr Cogn Disord 2004;18:138–144

Cognitive Functioning after Stroke: A One-Year Follow-Up Study

Rasquin S. · Lodder J. · Ponds R. · Winkens I. · Jolles J. · Verhey F.R.J.
Departments of aPsychiatry and Neuropsychology and bNeurology, University Hospital Maastricht, Maastricht, The Netherlands

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Cognitive disorders after stroke are one of the main causes of disability in daily activities. The main aim of this study was to investigate the frequency of post-stroke dementia, post-stroke mild cognitive impairment (MCI) and post-stroke amnestic MCI at different times after first-ever stroke; 196 patients were included in the study. In addition, cognitive disorders and their clinical course were studied. Frequency of post-stroke dementia was about 10% at all evaluation times; most patients had post-stroke MCI. Of the cognitive functions investigated, mental speed and calculation were most frequently affected. Performance on almost all cognitive tests was improved 6 and 12 months after stroke. Thus, while the frequency of post-stroke dementia is low, the frequency of post-stroke MCI is high, but improvement of cognitive function is possible.

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