The present study is designed to observe the symptoms,syndrome characteristics and neuropsychological changes of patients with cognitive dysfunction after Acute Cerebral Infarction, as well as study the patterns of syndrome evolution and neuropsychological characteristics, in order to provide evidences for the early-stage identification, diagnosis, intervention and treatment based on syndrome differentiation.~To assess the effectiveness of applying early-stage prevention on patients with cognitive impairment after Acute Cerebral Infarction through the use of traditional Chinese medicine--Jian Pi Yi Shen Hua Tan granules, explore the pathogenesis and therapeutic efficacy mechanism, evaluate the effectiveness of early-stage prevention and provide alternative solutions for preventing or delaying dementia.
The purpose of this study is to determine whether the chinese medicine Jian Pi Yi Shen Hua Tan granules is effective in the treatment of cognitive impairment after acute cerebral infarction .