Brain Neurorehabil.  2011 Sep;4(2):103-109. 10.12786/bn.2011.4.2.103.

Impact of Cognitive Function on Functional Recovery during Rehabilitation in Patients with Stroke

  • 1Department of Physical Medicine & Rehabilitation, Korea University College of Medicine, Korea.


OBJECTIVE: Cognitive dysfunction is an important factor on functional recovery after stroke. This study investigated the relationship between functional outcome and cognitive status during rehabilitation after stroke. METHOD: This retrospective study included 80 patients with rehabilitation program after first-ever stroke. The independent variables were mini-mental status examination (MMSE) and computerized neurocognitive function test (CNT). The dependent variables were modified Barthel index (MBI), Berg balance scale (BBS), National Institute of Health Stroke Scale (NIHSS) and discharge destination. The correlation analysis was applied.
Mean interval from onset to rehabilitation program was 29.5 days and duration of inpatient rehabilitation program was 31.1 days. Mean score of initial MMSE was 20.5 and CNT showed abnormal performance in at least one of the domain specific tests in all patients. The scores of MMSE, MBI, NIHSS and BBS were improved after rehabilitation program (p<0.05). Cognitive improvement contributing to the functional recovery were significant in the early participants in rehabilitation and in older patients (p<0.05). The home-discharge group demonstrated higher scores in executive function tests (p<0.001). Visual attention, visual working memory and reasoning revealed significant correlation with the MBI score at discharge.
The results of present study suggest that cognitive function, especially attention and working memory, is a predictor of functional outcome after stroke rehabilitation.


cognition; function recovery; rehabilitation; stroke
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