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Original Research Article

Free Access

Risk Factors for Falls in Community-Dwelling Patients with Alzheimer’s Disease and Dementia with Lewy Bodies: Walking with Visuocognitive Impairment May Cause a Fall

Kudo Y.a, c, d · Imamura T.a, e · Sato A.b · Endo N.d

Author affiliations

aDepartment of Neurology and bDivision of Speech Therapy, Department of Rehabilitation, Niigata Rehabilitation Hospital, cDepartment of Rehabilitation Medicine, Rehabilitation Center Midori Hospital, dDivision of Orthopedic Surgery, Department of Regenerative and Transplant Medicine, Niigata University Graduate School of Medicine and Dental Sciences, and eDivision of Speech, Hearing and Cognitive Sciences, Graduate School of Health Sciences, Niigata University of Health and Welfare, Niigata, Japan

Corresponding Author

Yuri Kudo

Rehabilitation Center Midori Hospital

2-5-1 Kandoji

Niigata City 950-0983 (Japan)

Tel. +81 25 244 0080, Fax +81 25 244 0050, E-Mail kudo@midori-gr.jp

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Dement Geriatr Cogn Disord 2009;27:139–146

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Background/Aims: To identify risk factors for falls in community-dwelling patients with Alzheimer’s disease (AD) and dementia with Lewy bodies (DLB). Patients: 78 consecutive patients (51 AD, 27 DLB) were recruited from the Niigata Rehabilitation Hospital memory clinic. Methods: We assessed the number of falls each patient had had in the previous 4 months. The data for DLB patients without motor parkinsonism were analyzed both as part of the whole DLB group and separately to determine the effect of parkinsonism alone on falls. Results: Of 78 patients, 17 (21.8%) reported at least 1 fall during the period. A diagnosis of DLB, visual hallucinations, parkinsonism and cognitive fluctuation were significant predictors, but none of them was significant in the stepwise multivariate analysis. After excluding patients with parkinsonism, the use of hypnotics-anxiolytics and a worse score on the constructional task were significant and independent predictors of falling. Conclusion: Parkinsonism was a major risk factor for falls. When AD or DLB patients walk with incongruent visual information, they may increase their postural sway or instability, because of their executive dysfunction. If elementary and/or higher-order visuocognitive impairment in AD or DLB patients alters visual information sufficiently, they may fall when walking.

© 2009 S. Karger AG, Basel


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Article / Publication Details

First-Page Preview
Abstract of Original Research Article

Accepted: October 22, 2008
Published online: February 02, 2009
Issue release date: March 2009

Number of Print Pages: 8
Number of Figures: 1
Number of Tables: 3

ISSN: 1420-8008 (Print)
eISSN: 1421-9824 (Online)

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