Cognitive Impairment After The First-ever Stroke:Patients Older Than45Years Were Studied In Chinese12Cities

Objects:To identify the prevalence and risk factors associated with poststroke cognitive impairment. To specialize cognitive domains affected after stroke. To observe the differences of cognitive status between3m and6m after the first-ever stroke and find out the related factors. Methods:1030consecuitive patients with first-ever stroke and without prestroke cognitive impairment were recruited in this study. They were valuated at3m and6m after stroke and categorized as vascular cognitive impairment (VCI), vascular dementia (VaD), vascular cognitive impairment without dementia (v-CIND) and cognitive intact according to the neuropsychiatry battery. Their demographic data, clinic characteristics, and treatments after stroke were documented. Results:the overall prevalence of VCI after first-ever stroke was29.6%. The percentages of the specific cognitive domains affected after stroke:5.4%for memory function,10.8%for executive function,24.3%for spatial construction and5.4%for attention. Conclusion:VCI is common among first-ever stroke patients. The most affected cognitive domain is spatial construction.