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

Rationale/objectives: Despite plausible pathophysiological mechanisms, research is needed to confirm the relationship between sleep, circadian rhythm and delirium in patients admitted to the intensive care unit (ICU). The objective of this review is to summarise existing studies promoting, in whole or in part, the normalisation of sleep and circadian biology and their impact on the incidence, prevalence, duration and/or severity of delirium in ICU.

Methods: A sensitive search of electronic databases and conference proceedings was completed in March 2023.