• Critical care nurse · Aug 2020

    Review

    Sleep Neurobiology and the Critical Care Environment.

    • Anne M Fink.
    • Anne M. Fink is an assistant professor in the Department of Biobehavioral Nursing Science, College of Nursing, University of Illinois at Chicago, Chicago, Illinois.
    • Crit Care Nurse. 2020 Aug 1; 40 (4): e1-e6.

    TopicSleep in the intensive care unit can be poorly consolidated and highly fragmented. This review examines the neurobiology of normal and abnormal sleep, with a focus on the changes that occur in the intensive care unit environment.Clinical RelevancePatients in the intensive care unit demonstrate a lack of rapid-eye-movement sleep and an inability to effectively transition from light to deep stages of sleep. These abnormalities can adversely affect hemodynamic parameters and physiological and psychological outcomes.PurposeTo describe the brain mechanisms and electroencephalographic characteristics of wakefulness and the different stages of sleep. This review also describes how sleep can be altered by hospitalization in the intensive care unit and how nurses can design interventions that improve sleep and outcomes.Content CoveredThe review examines sleep mechanisms, including brain electrical activity, regulatory centers in the brain, and circadian and diurnal patterns of sleep and hemodynamic function. Nursing interventions for specific patient risk factors in the intensive care unit are proposed.©2020 American Association of Critical-Care Nurses.

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