Gait Change Is Associated with Cognitive Outcome after an Acute Ischemic Stroke
نویسندگان
چکیده
Background: Cognition and gait have often been studied separately after stroke whereas it has been suggested that these two domains could interact through a cognitive-motor interference. Objective: To evaluate the influence of gait changes on cognitive outcome after an ischemic stroke (IS). Methods: We conducted a prospective and monocentric study including patients admitted for an acute supratentorial IS with a National Institute of Health Stroke Score ≤ 15. Cognition, gait and motor disability were evaluated at baseline, 3 months and 1 year post-stroke, using the Montreal Cognitive Assessment (MoCA), the 10-m walking test (10-MWT) and the Fugl-Meyer motor assessment (FMMA). The effect of changes in 10-MWT over the year of follow-up on MoCA changes was estimated using a generalized linear mixed model with FMMA, age and gender as covariates. Results: Two hundred and Twelve patients were included (71% male, age 64 ± 13 years old). 10-MWT improved from baseline to 1 year (p < 0.001), as did MoCA (p < 0.001) and FMMA (p < 0.001) scores. Ninety-nine patients (47%) had a MoCA <26 at 1 year. Changes in 10-MWT were independently associated with changes in MoCA (β = -0.2, 95% CI -0.24 to -0.07, Bonferroni-corrected p-value = 0.002). Analyses of MoCA sub-scores suggested that changes in gait performance was associated with changes in executive functions and recall. Conclusion: Gait performance is associated with cognitive outcome after a mild to moderate IS, suggesting that they should be managed together to improve post-stroke independence.
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