151. Effect of Cognitively-Stimulating Activities for the Symptom Management of Delirium Superimposed on Dementia: A Randomized Controlled Trial
- Author
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Paula Mulhall, Jacqueline Mogle, Donna M. Fick, David J. Gill, Nikki L. Hill, Andrea Yevchak-Sillner, Mark S. Litaker, Ann Kolanowski, Linda Clare, and Malaz Boustani
- Subjects
Male ,medicine.medical_specialty ,Severity of Illness Index ,Article ,law.invention ,03 medical and health sciences ,Executive Function ,0302 clinical medicine ,Randomized controlled trial ,Rating scale ,law ,medicine ,Dementia ,Humans ,Single-Blind Method ,030212 general & internal medicine ,Geriatric Assessment ,Aged, 80 and over ,Cognitive Behavioral Therapy ,business.industry ,Montreal Cognitive Assessment ,Delirium ,Cognition ,Length of Stay ,medicine.disease ,Confidence interval ,Standard error ,Treatment Outcome ,Physical therapy ,Female ,Independent Living ,Geriatrics and Gerontology ,medicine.symptom ,business ,030217 neurology & neurosurgery ,Subacute Care - Abstract
Objective To determine whether cognitively stimulating activities would reduce duration and severity of delirium and improve cognitive and physical function to a greater extent than usual care. Design Single-blind randomized clinical trial. Setting Eight post-acute care (PAC) facilities. Participants Community-dwelling older adults with dementia and delirium (N = 283). Intervention Research staff provided cognitively stimulating activities daily for up to 30 days. Measurements Primary outcomes were delirium duration (Confusion Assessment Method) and delirium severity (Delirium Rating Scale). Secondary outcomes were cognitive function (Digits Forward, Montreal Cognitive Assessment, CLOX) and physical function (Barthel Index). Results Mean percentage of delirium-free days (intervention: 64.8%, 95% confidence interval (CI) = 59.6–70.1; control: 68.7%, 95% CI = 63.9–73.6; P = .37, Wilcoxon rank sum test) and delirium severity (range 0–39: intervention: 10.77, 95% CI = 10.10–11.45; control: 11.15, 95% CI = 10.50–11.80; difference 0.37, 95% CI = 0.56–1.31, P = .43) were similar in both groups. Significant differences for secondary outcomes favoring intervention were found (executive function (range 0–15): intervention: 6.58, 95% CI = 6.12–7.04; control: 5.89, 95% CI = 5.45–6.33; difference −0.69, 95% CI = 1.33 to −0.06, P = .03; constructional praxis (range 0–15): intervention: 8.84, 95% CI = 8.83–9.34; control: 7.53, 95% CI = 7.04–8.01; difference −1.31, 95% CI = 2.01 to −0.61, P < .001). After adjusting for baseline constructional praxis, the group comparison was no longer significant. Average length of stay was shorter in the intervention (36.09 days) than the control (53.13 days) group (standard error = 0.15, P = .01, negative binomial regression). Conclusion Cognitively stimulating activities did not improve delirium but improved executive function and reduced length of stay. Resolution of delirium may require more-intense nonpharmacological management when the individual has dementia.
- Published
- 2016