Energy expenditure in critically ill surgical patients. Comparative analysis of predictive equation and indirect calorimetry

Acta Cirurgica Brasileira

Maria Auxiliadora Martins²  Mayra Gonçalves Menegueti¹  Edson Antônio Nicolini¹  Michele Ferreira Picolo¹  Alessandra Fabiane Lago¹  Olindo Assis Martins Filho¹  Anibal Basile Filho¹ 

[1] ,USP FMRP Department of Surgery and AnatomyRibeirao Preto SP ,Brazil

关键词: Calorimetry;    Instrumentation;    Energy Metabolism;    Intensive Care;    Calorimetria;    Instrumentação;    Metabolismo Energético;    Cuidados Intensivos;   

DOI  :  10.1590/S0102-86502011000800010

来源: SciELO

【 摘 要 】

PURPOSE: The aim of this investigation was to compare the resting energy expenditure (REE) calculated by the Harris-Benedict equation (REE HB) with the REE measured by indirect calorimetry (REE IC) in critically ill surgical patients under mechanical ventilation. METHODS: Thirty patients were included in this work. REE was calculated by the Harris-Benedict equation (REE HB) using real body weight, and it was also measured by indirect calorimetry (REE IC), which was performed for 30 minutes. RESULTS: REE HB had significant (p < 0.0005) but low correlation (Spearman r = 0.57) with REE IC, with a mean bias of 12 kcal.d-1 and limits of agreement ranging from - 599.7 to 623.7 kcal.d-1 as detected by the Bland-Altman analysis. CONCLUSION: These findings suggest that REE IC seems to be more appropriate than REE HB for accurate measurement of REE in critically ill surgical patients under mechanical ventilation.

【 授权许可】

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