Neurological research · 2020
Screening for cognitive impairment with the montreal cognitive assessment at six months after stroke and transient ischemic attack.
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Liao Xiaoling, Zuo Lijun, Pan Yuesong, Xiang Xianglong, Meng Xia, Li Hao, Zhao Xingquan, Wang Yilong, Shi Jiong, Wang Yongjun
Аннотация
OBJECTIVE: Cognitive impairment usually occurs in the acute phase after stroke, but most stroke survivors experience some form of long-term cognitive deficit. The aim of this study was to establish the cutoff point of the Montreal Cognitive Assessment (MoCA-Beijing) in screening for cognitive impairment (CI) at 6 months of ischemic stroke or transient ischemic attack (TIA).
METHODS: A total of 301 stroke patients and 15 TIA patients were recruited. Patients were assessed at six months by the MoCA-Beijing and a formal neuropsychological battery. The 1.5 SD below the level of the norm on several tests indicated cognitive impairment (CI).
RESULTS: Most stroke and TIA patients were in their 60s (61.23 ± 10.60 years old). The optimal cutoff point for MoCA-Beijing in discriminating patients with CI from those with no cognitive impairment (NCI) was 24/25 (sensitivity 63.28%, specificity 71.22%, PPV = 73.68%, NPV = 60.37%, classification accuracy = 66.72%). The predominant cognitive deficits were visuospatial ability (84.85%), and then attention/executive function (79.27%).
CONCLUSION: The MoCA-Beijing cutoff score for differentiating CI from NCI after stroke and TIA at six months was at 24/25, and it is important for routine clinical practice.
METHODS: A total of 301 stroke patients and 15 TIA patients were recruited. Patients were assessed at six months by the MoCA-Beijing and a formal neuropsychological battery. The 1.5 SD below the level of the norm on several tests indicated cognitive impairment (CI).
RESULTS: Most stroke and TIA patients were in their 60s (61.23 ± 10.60 years old). The optimal cutoff point for MoCA-Beijing in discriminating patients with CI from those with no cognitive impairment (NCI) was 24/25 (sensitivity 63.28%, specificity 71.22%, PPV = 73.68%, NPV = 60.37%, classification accuracy = 66.72%). The predominant cognitive deficits were visuospatial ability (84.85%), and then attention/executive function (79.27%).
CONCLUSION: The MoCA-Beijing cutoff score for differentiating CI from NCI after stroke and TIA at six months was at 24/25, and it is important for routine clinical practice.