Abstract

This study describes the correlation between changes in mood symptoms assessed by the Hamilton Depression Rating Scale (HDRS) and intellectual impairment assessed by the Brief Cognitive Rating Scale (BCRS) and Mattis Dementia Rating Scale (MDRS) in 166 unselected 1-year survivors after stroke, in whom post-stroke depression (PSD) has previously been described and validated. The course of intellectual impairment associated with PSD was compared with the course of intellectual impairment in non-PSD patients. In general, improvement in mood symptoms was correlated with an improvement in intellectual function. However, in 53 PSD patients improvement in intellectual performance was absent, despite the fact that the patients reported being significantly less distressed by dementia symptoms. Antidepressive medication did not lead to any improvement in MDRS score. No evidence was found to support the hypothesis of 'dementia of depression'. To the contrary, the findings indicate 'depression of dementia'.

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