Behavioral symptoms in long-term survivors of ischemic stroke

Abstract

The range of behavioral changes occurring after stroke has not yet been fully characterized. To evaluate behavioral symptoms after stroke and clinical characteristics that may influence the number and frequency of such symptoms, we compared 53 survivors of mild ischemic stroke with 30 stroke-free controls. Stroke survivor and control participants completed self-ratings of behavioral symptoms and were administered measures of cognitive status (ie, Beck Depression Inventory II, Mini-Mental State Examination, and Controlled Oral Word Association Test). Informants of stroke survivors and controls completed ratings of behavioral symptoms and functional status (ie, Neuropsychiatric Inventory Questionnaire, Informant Questionnaire on Cognitive Decline in the Elderly, and Functional Activities Questionnaire). More behavioral symptoms were observed in stroke survivors than in controls (mean [standard deviation] total number of symptoms on the Neuropsychiatric Inventory Questionnaire, 2.1 [2.0] vs 1.1 [1.5]; P = .02). Informants of stroke survivors were more likely to recognize behavioral symptoms than were stroke survivors themselves. Higher initial stroke severity was associated with more behavioral symptoms. With more behavioral symptoms, there was more functional impairment. Our findings suggest that behavioral symptoms can have unique and troublesome effects on stroke patients. Future research is needed to understand how the identification of behavioral symptoms after stroke can improve care in stroke survivors.