Objective: Circadian rhythms are intrinsic timekeeping mechanisms that allow for adaptation to cyclic environmental changes. Increasing evidence suggests that circadian rhythms may influence progression of a variety of diseases as well as effectiveness and toxicity of drugs commonly used in the intensive care unit. In this perspective, we provide a brief review of the molecular mechanisms of circadian rhythms and its relevance to critical care. DATA SOURCES, STUDY SELECTION, DATA EXTRACTION, and DATA SYNTHESIS: Articles related to circadian rhythms and organ systems in normal and disease conditions were searched through the PubMed library with the goal of providing a concise review. Conclusions: Critically ill Patients may be highly vulnerable to disruption of circadian rhythms as a result of the severity of their underlying diseases as well as the intensive care unit environment where noise and frequent therapeutic/diagnostic Interventions take place. Further basic and clinical research addressing the importance of circadian rhythms in the context of critical care is warranted to develop a better understanding of the complex pathophysiology of critically ill Patients as well as to identify novel therapeutic approaches for these Patients. © 2012 by the Society of Critical Care Medicine and Lippincott Williams & Wilkins.
CITATION STYLE
Chan, M. C., Spieth, P. M., Quinn, K., Parotto, M., Zhang, H., & Slutsky, A. S. (2012, January). Circadian rhythms: From basic mechanisms to the intensive care unit. Critical Care Medicine. https://doi.org/10.1097/CCM.0b013e31822f0abe
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