A randomized, controlled trial of bright light therapy for agitated behaviors in dementia patients residing in long-term care
Background Agitated behaviors are common in dementia patients residing in chronic care settings. Their occurrence may be associated with lack of adequate exposure to sunlight and with circadian rhythm disturbances. Objective Prior research has suggested that bright light therapy (BLT) may reduce agi...
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| Veröffentlicht in: | International journal of geriatric psychiatry 1999-07, Vol.14 (7), p.520-525 |
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| container_title | International journal of geriatric psychiatry |
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| creator | Lyketsos, Constantine G. Lindell Veiel, Lori Baker, Alva Steele, Cynthia |
| description | Background
Agitated behaviors are common in dementia patients residing in chronic care settings. Their occurrence may be associated with lack of adequate exposure to sunlight and with circadian rhythm disturbances.
Objective
Prior research has suggested that bright light therapy (BLT) may reduce agitated behaviors in dementia patients. The aim of this study was to test the efficacy of BLT in a randomized, controlled, crossover clinical trial.
Method
Fifteen patients with dementia and agitated behaviors residing in a chronic care facility were randomized in a crossover design to morning BLT for 1 hour per day or to a control condition with dim light exposure. Patients were treated in either condition for 4 weeks, followed by 1 week on no treatment, prior to being crossed over to the other condition.
Results
Eight out of 15 patients completed the entire study. The rest completed at least 2 weeks of study. Patients randomized to the BLT condition exhibited a statistically significant improvement in nocturnal sleep from a mean of 6.4 hours/night to 8.1 hours/night 4 weeks later (p |
| doi_str_mv | 10.1002/(SICI)1099-1166(199907)14:7<520::AID-GPS983>3.0.CO;2-M |
| format | Article |
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Agitated behaviors are common in dementia patients residing in chronic care settings. Their occurrence may be associated with lack of adequate exposure to sunlight and with circadian rhythm disturbances.
Objective
Prior research has suggested that bright light therapy (BLT) may reduce agitated behaviors in dementia patients. The aim of this study was to test the efficacy of BLT in a randomized, controlled, crossover clinical trial.
Method
Fifteen patients with dementia and agitated behaviors residing in a chronic care facility were randomized in a crossover design to morning BLT for 1 hour per day or to a control condition with dim light exposure. Patients were treated in either condition for 4 weeks, followed by 1 week on no treatment, prior to being crossed over to the other condition.
Results
Eight out of 15 patients completed the entire study. The rest completed at least 2 weeks of study. Patients randomized to the BLT condition exhibited a statistically significant improvement in nocturnal sleep from a mean of 6.4 hours/night to 8.1 hours/night 4 weeks later (p<0.05). The sleep of patients in the control condition did not improve significantly. There were no other significant differences between baseline and follow‐up, nor between BLT and control treated patients on the other outcome measures, which included the Behavioral Pathology in Alzheimer Disease scale (Behave‐AD) and the Cornell Scale for Depression in Dementia.
Conclusion
Patients with dementia in chronic care who exhibit agitated behaviors sleep more hours at night when administered morning BLT. However, BLT does not lead to improvements in agitated behaviors in institutionalized patients with dementia with non‐disturbed sleep–wake cycles. Copyright © 1999 John Wiley & Sons, Ltd.</description><identifier>ISSN: 0885-6230</identifier><identifier>EISSN: 1099-1166</identifier><identifier>DOI: 10.1002/(SICI)1099-1166(199907)14:7<520::AID-GPS983>3.0.CO;2-M</identifier><identifier>PMID: 10440971</identifier><language>eng</language><publisher>Chichester, UK: John Wiley & Sons, Ltd</publisher><subject>Aged ; Aged, 80 and over ; agitation ; bright light therapy ; Cross-Over Studies ; dementia ; Dementia - complications ; Female ; Humans ; Male ; nursing home ; Nursing Homes ; Phototherapy ; Psychomotor Agitation - etiology ; Psychomotor Agitation - therapy ; Sleep Wake Disorders - etiology ; Sleep Wake Disorders - therapy ; Treatment Outcome</subject><ispartof>International journal of geriatric psychiatry, 1999-07, Vol.14 (7), p.520-525</ispartof><rights>Copyright © 1999 John Wiley & Sons, Ltd.</rights><rights>Copyright 1999 John Wiley & Sons, Ltd.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c5023-66d93c7c86b43311e314cb519408689a93414a77ad5f6fedae962342a1f195083</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2F%28SICI%291099-1166%28199907%2914%3A7%3C520%3A%3AAID-GPS983%3E3.0.CO%3B2-M$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2F%28SICI%291099-1166%28199907%2914%3A7%3C520%3A%3AAID-GPS983%3E3.0.CO%3B2-M$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,777,781,1412,27905,27906,45555,45556</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/10440971$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Lyketsos, Constantine G.</creatorcontrib><creatorcontrib>Lindell Veiel, Lori</creatorcontrib><creatorcontrib>Baker, Alva</creatorcontrib><creatorcontrib>Steele, Cynthia</creatorcontrib><title>A randomized, controlled trial of bright light therapy for agitated behaviors in dementia patients residing in long-term care</title><title>International journal of geriatric psychiatry</title><addtitle>Int. J. Geriat. Psychiatry</addtitle><description>Background
Agitated behaviors are common in dementia patients residing in chronic care settings. Their occurrence may be associated with lack of adequate exposure to sunlight and with circadian rhythm disturbances.
Objective
Prior research has suggested that bright light therapy (BLT) may reduce agitated behaviors in dementia patients. The aim of this study was to test the efficacy of BLT in a randomized, controlled, crossover clinical trial.
Method
Fifteen patients with dementia and agitated behaviors residing in a chronic care facility were randomized in a crossover design to morning BLT for 1 hour per day or to a control condition with dim light exposure. Patients were treated in either condition for 4 weeks, followed by 1 week on no treatment, prior to being crossed over to the other condition.
Results
Eight out of 15 patients completed the entire study. The rest completed at least 2 weeks of study. Patients randomized to the BLT condition exhibited a statistically significant improvement in nocturnal sleep from a mean of 6.4 hours/night to 8.1 hours/night 4 weeks later (p<0.05). The sleep of patients in the control condition did not improve significantly. There were no other significant differences between baseline and follow‐up, nor between BLT and control treated patients on the other outcome measures, which included the Behavioral Pathology in Alzheimer Disease scale (Behave‐AD) and the Cornell Scale for Depression in Dementia.
Conclusion
Patients with dementia in chronic care who exhibit agitated behaviors sleep more hours at night when administered morning BLT. However, BLT does not lead to improvements in agitated behaviors in institutionalized patients with dementia with non‐disturbed sleep–wake cycles. Copyright © 1999 John Wiley & Sons, Ltd.</description><subject>Aged</subject><subject>Aged, 80 and over</subject><subject>agitation</subject><subject>bright light therapy</subject><subject>Cross-Over Studies</subject><subject>dementia</subject><subject>Dementia - complications</subject><subject>Female</subject><subject>Humans</subject><subject>Male</subject><subject>nursing home</subject><subject>Nursing Homes</subject><subject>Phototherapy</subject><subject>Psychomotor Agitation - etiology</subject><subject>Psychomotor Agitation - therapy</subject><subject>Sleep Wake Disorders - etiology</subject><subject>Sleep Wake Disorders - therapy</subject><subject>Treatment Outcome</subject><issn>0885-6230</issn><issn>1099-1166</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1999</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkV2LEzEUhgdR3Lr6FyRXsgtOTSaZZFJloTvVWti1yvqFN4d0JtNG56MmqVrB_27GKYugsDdJyHnznCRPFJ0RPCYYJ09Orhb54pRgKWNCOD8hUkosTgmbiGdpgieT6WIWz19fyYye0TEe58unSXx5KxpdH7kdjXCWpTFPKD6K7jn3GeNQI9nd6IhgxrAUZBT9miKr2rJrzE9dPkZF13rb1bUukbdG1air0Mqa9caj-s_oN9qq7R5VnUVqbbzyIbrSG_XNdNYh06JSN7r1RqGt8iasHLLamdK0675ad-069to2qFBW34_uVKp2-sFhPo7evXj-Nn8ZXyzni3x6ERcpTmjMeSlpIYqMrxilhGhKWLFKiWQ445lUkjLClBCqTCte6VJpGV7NEkUqIlOc0ePo0cDd2u7rTjsPjXGFrmvV6m7ngEvJeEaTG4MJCf-biDQE3w_BwnbOWV3B1ppG2T0QDL1BgN4g9Dqg1wGDQSAMBASDAMEgDAaBAoZ8CQlcBvDDww12q0aXf2EHZSHwcQh8N7Xe_9P2hq7_bXrYCeh4QBvn9Y9rtLJfgAsqUvjwag6f5rM3s3OSwzn9DbBwxr0</recordid><startdate>199907</startdate><enddate>199907</enddate><creator>Lyketsos, Constantine G.</creator><creator>Lindell Veiel, Lori</creator><creator>Baker, Alva</creator><creator>Steele, Cynthia</creator><general>John Wiley & Sons, Ltd</general><scope>BSCLL</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TK</scope><scope>7X8</scope></search><sort><creationdate>199907</creationdate><title>A randomized, controlled trial of bright light therapy for agitated behaviors in dementia patients residing in long-term care</title><author>Lyketsos, Constantine G. ; Lindell Veiel, Lori ; Baker, Alva ; Steele, Cynthia</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5023-66d93c7c86b43311e314cb519408689a93414a77ad5f6fedae962342a1f195083</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1999</creationdate><topic>Aged</topic><topic>Aged, 80 and over</topic><topic>agitation</topic><topic>bright light therapy</topic><topic>Cross-Over Studies</topic><topic>dementia</topic><topic>Dementia - complications</topic><topic>Female</topic><topic>Humans</topic><topic>Male</topic><topic>nursing home</topic><topic>Nursing Homes</topic><topic>Phototherapy</topic><topic>Psychomotor Agitation - etiology</topic><topic>Psychomotor Agitation - therapy</topic><topic>Sleep Wake Disorders - etiology</topic><topic>Sleep Wake Disorders - therapy</topic><topic>Treatment Outcome</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lyketsos, Constantine G.</creatorcontrib><creatorcontrib>Lindell Veiel, Lori</creatorcontrib><creatorcontrib>Baker, Alva</creatorcontrib><creatorcontrib>Steele, Cynthia</creatorcontrib><collection>Istex</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Neurosciences Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>International journal of geriatric psychiatry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lyketsos, Constantine G.</au><au>Lindell Veiel, Lori</au><au>Baker, Alva</au><au>Steele, Cynthia</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A randomized, controlled trial of bright light therapy for agitated behaviors in dementia patients residing in long-term care</atitle><jtitle>International journal of geriatric psychiatry</jtitle><addtitle>Int. J. Geriat. Psychiatry</addtitle><date>1999-07</date><risdate>1999</risdate><volume>14</volume><issue>7</issue><spage>520</spage><epage>525</epage><pages>520-525</pages><issn>0885-6230</issn><eissn>1099-1166</eissn><abstract>Background
Agitated behaviors are common in dementia patients residing in chronic care settings. Their occurrence may be associated with lack of adequate exposure to sunlight and with circadian rhythm disturbances.
Objective
Prior research has suggested that bright light therapy (BLT) may reduce agitated behaviors in dementia patients. The aim of this study was to test the efficacy of BLT in a randomized, controlled, crossover clinical trial.
Method
Fifteen patients with dementia and agitated behaviors residing in a chronic care facility were randomized in a crossover design to morning BLT for 1 hour per day or to a control condition with dim light exposure. Patients were treated in either condition for 4 weeks, followed by 1 week on no treatment, prior to being crossed over to the other condition.
Results
Eight out of 15 patients completed the entire study. The rest completed at least 2 weeks of study. Patients randomized to the BLT condition exhibited a statistically significant improvement in nocturnal sleep from a mean of 6.4 hours/night to 8.1 hours/night 4 weeks later (p<0.05). The sleep of patients in the control condition did not improve significantly. There were no other significant differences between baseline and follow‐up, nor between BLT and control treated patients on the other outcome measures, which included the Behavioral Pathology in Alzheimer Disease scale (Behave‐AD) and the Cornell Scale for Depression in Dementia.
Conclusion
Patients with dementia in chronic care who exhibit agitated behaviors sleep more hours at night when administered morning BLT. However, BLT does not lead to improvements in agitated behaviors in institutionalized patients with dementia with non‐disturbed sleep–wake cycles. Copyright © 1999 John Wiley & Sons, Ltd.</abstract><cop>Chichester, UK</cop><pub>John Wiley & Sons, Ltd</pub><pmid>10440971</pmid><doi>10.1002/(SICI)1099-1166(199907)14:7<520::AID-GPS983>3.0.CO;2-M</doi><tpages>6</tpages></addata></record> |
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| source | MEDLINE; Wiley Online Library Journals Frontfile Complete |
| subjects | Aged Aged, 80 and over agitation bright light therapy Cross-Over Studies dementia Dementia - complications Female Humans Male nursing home Nursing Homes Phototherapy Psychomotor Agitation - etiology Psychomotor Agitation - therapy Sleep Wake Disorders - etiology Sleep Wake Disorders - therapy Treatment Outcome |
| title | A randomized, controlled trial of bright light therapy for agitated behaviors in dementia patients residing in long-term care |
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