Mechanisms and Impact of Sleep Disturbance in Critical Illness: A Review.
Level 5 - mechanism / opinion, no new human data
Narrative review of mechanisms and clinical impacts without systematic methodology.
PubMed 40665757 · doi:10.1177/08850666251359203
What was done
This narrative review synthesizes research on the underlying mechanisms and clinical impact of sleep deprivation and circadian rhythm disruption in critically ill patients.
What was found
The abstract reports no quantitative data or numerical findings. It qualitatively describes contributing pathophysiological factors—including synaptic homeostasis, neural synchronization, memory consolidation, metabolic dynamics, immune modulation, light-dark cycle disruption, and medications—and notes their association with exacerbated organ dysfunction, delayed recovery, and prolonged hospital stays.
Why it matters
It highlights the multifaceted biological and clinical pathways linking sleep and circadian rhythm disruption to worsened outcomes in the intensive care unit.
Limits
As a narrative review, it presents no new empirical data or systematic search methodology. The abstract does not provide quantitative effect estimates or details on sample sizes from cited literature.
Cited by
- context ICU psychosis is a clinical phenomenon in intensive care units driven by severe circadian rhythm disruption and fragmented sleep, which typically resolves once the patient goes home.