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  • Title: Gait disorders of unknown cause in the elderly: Clinical and MRI findings.
    Author: Franch O, Calandre L, Alvarez-Linera J, Louis ED, Bermejo-Pareja F, Benito-León J.
    Journal: J Neurol Sci; 2009 May 15; 280(1-2):84-6. PubMed ID: 19251276.
    Abstract:
    BACKGROUND: Disequilibrium of unknown cause in older people has been associated with white matter lesions on neuroimaging studies. OBJECTIVE: To investigate the relationship between gait and balance problems in the elderly, white matter hyperintensities, and vascular risk factors. METHODS: We studied clinical and neuroimaging features in 30 people older than 65 years of age with gait disorders of unknown cause and 30 age- and sex-matched controls. Patients and controls underwent the same extensive quantitative test battery. White matter lesions on MRI scans were graded in different brain regions. RESULTS: History of hypertension was more common among patients than controls (60% vs. 27%, p=0.012). On all scales, patients with gait disorders scored worse than controls. The frequency of white matter lesions was significantly higher in patients than in controls (p<0.001). In a multivariate logistic regression analysis in which diagnosis (patient vs. control) was the dependent variable, there was an association between diagnosis and white matter signal hyperintensity score (p<0.001) and history of hypertension (p=0.039). CONCLUSIONS: Gait disorders of unknown cause in older people are associated both with white matter lesions on MRI scans and with history of hypertension.
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