Intensive care unit interventions to promote sleep and circadian biology in reducing incident delirium: a scoping review

Of 7886 citations, 50 articles were included that examined the relationship between sleep, circadian rhythm, and delirium in ICU patients.

• Interventions promoting sleep and circadian biology included care bundles, light therapy, eye masks, earplugs, and pharmacological approaches.
• The association between these interventions and the occurrence or severity of delirium was inconsistent across studies.
• Challenges in identifying effective intervention components arose from the integration of multiple strategies and variable compliance reporting.
• Further research is necessary to clarify how promoting sleep and circadian rhythms in the ICU may influence delirium outcomes.

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