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Sleep‐wake rhythms determined by actigraphy during in‐hospital stay following discharge from an intensive care unit
Author(s) -
Okutan Betül,
Kjer Cilia Klara W.,
Poulsen Lone M.,
Gögenur Ismail,
Mathiesen Ole,
Estrup Stine,
Madsen Michael Tvilling
Publication year - 2021
Publication title -
acta anaesthesiologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.738
H-Index - 107
eISSN - 1399-6576
pISSN - 0001-5172
DOI - 10.1111/aas.13800
Subject(s) - actigraphy , medicine , sleep (system call) , intensive care unit , circadian rhythm , sleep onset , intensive care , emergency medicine , pediatrics , physical therapy , anesthesia , insomnia , intensive care medicine , psychiatry , computer science , operating system
Background Sleep and circadian disturbances play a major role in recovery after critical illness. Ample research has shown sleep to be disturbed during the stay at the intensive care unit (ICU); however, the trajectory of sleep after ICU discharge is sparsely described. The current study aimed to describe the development of the sleep‐wake rhythm in subjects discharged from ICU to a hospital ward. Methods Following discharge from the ICU to a general hospital ward, the participants were monitored with an ActiGraph for sleep assessment for 7 days or until hospital discharge or death. Data were analysed for day‐to‐day change with t‐tests and for the whole period with repeated measures analysis. Results For the 38 included patients, repeated measures analysis showed no significant improvement in total sleep time and wake time. However, for secondary outcomes, improvements for wake after sleep onset ( P = .02) and reduction in the number of naps ( P = .03) both in the day‐to‐day and overall trend analysis were observed. Conclusion The duration of sleep and wake time did not improve during ward stay. However, sleep became less fragmented and naps during the day declined. Due to the small sample size further, larger trials are needed.