• Akihito Takemae, Tomonori Takazawa, Jiro Kamiyama, Masafumi Kanamoto, Masaru Tobe, Hiroshi Hinohara, Fumio Kunimoto, and Shigeru Saito.
• Intensive Care Unit, Gunma University Hospital, Japan.
• J Crit Care. 2020 Apr 1; 56: 236-242.

AbstractEstimating nutrient consumption and administering appropriate nutritional therapy is essential for improving clinical outcomes in critically ill patients. Various equations, such as the Harris-Benedict equation, have been developed to estimate the required calories. Previous equations, however, targeted Westerners, whose physical characteristics are likely different from those of Asians. Hence, it is unclear whether these equations can be used for Asian patients. This study focused specifically on sepsis patients admitted to a single Japanese ICU, and aimed to develop novel equations to estimate their total energy expenditure. A total of 95 sepsis patients were included in this study. We measured resting energy expenditure (REE) by using indirect calorimetry, and created equations to calculate basal metabolic rate (BMR) using height, weight and age as variables. REE was predicted by multiplying BMR by the novel equation with the stress factor of 1.4. The prediction error of our novel equations were smaller than those of other conventional equations. We further confirmed the accuracy of our equations and that they were unaffected by patient age and disease severity by using data obtained from another patient group. The current study suggested that these equations might allow accurate estimation of the total energy expenditure and proper management of nutritional therapy in Asian sepsis patients.Copyright © 2020 The Authors. Published by Elsevier Inc. All rights reserved.

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