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Bright light therapy for agitation in dementia: a randomized controlled trial

  • Alistair Burns (a1) (a2), Harry Allen (a2), Barbara Tomenson (a3), Debbie Duignan (a2) and Jane Byrne (a1)...

Abstract

Background: Agitation is common in people with dementia, is distressing to patients and stressful to their carers. Drugs used to treat the condition have the potential to cause particularly severe side effects in older people with dementia and have been associated with an increased death rate. Alternatives to drug treatment for agitation should be sought. The study aimed to assess the effects of bright light therapy on agitation and sleep in people with dementia.

Methods: A single center randomized controlled trial of bright light therapy versus standard light was carried out. The study was completed prior to the mandatory registration of randomized controls on the clinical trials registry database and, owing to delays in writing up, retrospective registration was not completed.

Results: There was limited evidence of reduction in agitation in people on active treatment, sleep was improved and a suggestion of greater efficacy in the winter months.

Conclusions: Bright light therapy is a potential alternative to drug treatment in people with dementia who are agitated.

Copyright

Corresponding author

Correspondence should be addressed to: Alistair Burns, Professor of Old Age Psychiatry, University of Manchester, 3rd Floor, University Place, Oxford Road, Manchester M13 9PL, U.K. Phone: +44 (0)161 306 7941; Fax: +44 (0)161 306 7945. Email: alistair.burns@manchester.ac.uk.

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