Journal
JOURNAL OF MULTIDISCIPLINARY HEALTHCARE
Volume 14, Issue -, Pages 1107-1117Publisher
DOVE MEDICAL PRESS LTD
DOI: 10.2147/JMDH.S306350
Keywords
critical illness; protein; metabolism; amino acid
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Adequate protein supplementation may improve the clinical outcomes of critically ill patients, potentially surpassing the role of caloric supplementation. This review focuses on the impact of critical illness on protein metabolism, the importance of protein in nutrition therapy, and the function of specific amino acids.
The clinical impact of nutrition therapy in critically ill patients has been known for years, and relevant guidelines regarding nutrition therapy have emphasized the importance of proteins. During critical illness, such as sepsis or the state following major surgery, major trauma, or major bum injury, patients suffer from a high degree of stress/inflammation, and during this time, metabolism deviates from homeostasis. The increased degradation of endogenous proteins in response to stress hormones is among the most important events in the acute phase of critical illness. Currently published evidence suggests that adequate protein supplementation might improve the clinical outcomes of critically ill patients. The role of sufficient protein supplementation may even surpass that of caloric supplementation. In this review, we focus on relevant physiological alterations in critical illness, the effects of critical illness on protein metabolism, nutrition therapy in clinical practice, and the function of specific amino acids.
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