Cognitive Improvement After Stroke: Prevalence and Pattern During the First 3 Months

被引:0
作者
Etesami, Maede Sadat [1 ]
Benth, Jurate Saltyte [2 ,3 ]
Kliem, Elisabeth [1 ,2 ]
Weider, Siri [1 ,4 ]
Thommessen, Bente [5 ]
Fladby, Tormod [2 ,5 ]
Hestad, Knut [1 ,6 ]
Grambaite, Ramune [1 ,3 ]
机构
[1] Norwegian Univ Sci & Technol, Dept Psychol, Edvard Bulls Veg 1, N-7491 Trondheim, Norway
[2] Univ Oslo, Inst Clin Med, Oslo, Norway
[3] Akershus Univ Hosp, Hlth Serv Res Unit, Lorenskog, Norway
[4] Levanger Hosp, Hosp Trust Nord Trondelag, Dept Psychiat, Eating Disorder Unit, Levanger, Norway
[5] Akershus Univ Hosp, Dept Neurol, Lorenskog, Norway
[6] Innlandet Hosp Trust, Dept Res, Brumunddal, Norway
关键词
cognitive improvement; cognitive recovery; poststroke mild cognitive impairment; cognitive functioning; stroke; RISK-FACTORS; IMPAIRMENT; RECOVERY; DEMENTIA;
D O I
10.1037/neu0000986
中图分类号
B849 [应用心理学];
学科分类号
040203 ;
摘要
Objective: An estimated 40% of patients experience cognitive impairment 3 months after a stroke. However, there is a lack of knowledge about cognitive improvement after stroke. This exploratory study aims to comprehend the prevalence and patterns of cognitive improvement within the initial 3 months poststroke. Method: At 1 week and 3 months poststroke, 85 patients aged 40-79 years with supratentorial ischemic stroke and a Mini-Mental State Examination score >= 23 underwent neuropsychological testing of learning, recall, recognition, working memory, verbal fluency, naming, executive function, attention, and processing speed. A hierarchical cluster analysis based on Ward's method and squared Euclidean distance was performed on changes in tests over 3 months to identify homogeneous groups. The within-cluster and between-cluster differences in change were presented descriptively for each cognitive domain. Potential predictors for cluster belonging were compared by independent samples t test or chi(2) test. Results: The cluster analysis identified two clusters. The improvement cluster (n = 22) progressed in learning, recall, recognition, executive function, and most measures of working memory, attention, and verbal fluency. In the stable cluster (n = 63), cognitive function remained stable across most domains, with an increase in a few working memory, verbal fluency and naming, and executive function measures. Notably, 67% of lacunar strokes and 93% of females were in the stable cluster, having less improvement. Age and education did not differentiate between the clusters. Conclusions: 26% of patients showed overall cognitive improvement within 3 months. Knowing the prevalence and patterns of cognitive improvement after stroke lays the groundwork for future research and clinical practice.
引用
收藏
页码:235 / 247
页数:13
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