2011
DOI: 10.1590/s0102-86502011000800010
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Abstract: 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 … Show more

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Cited by 12 publications
(9 citation statements)
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“…21,39 The absence of an adequate PE for the elderly population restricts the estimation of REE in the hospital setting, which would result in a negative effect on the nutrition status of the critically ill elderly, possibly with an increased length of hospital stay and higher mortality risk. 33,34 This suggests that the correct determination of the REE for elderly patients admitted to the ICU might be an important component of their clinical outcomes, especially in the acute stress state, when great discrepancies are depicted between REE-IC and data produced by PEs evaluated in this study. It should also be taken into consideration that most PEs were derived from population samples different from the ones in which the equation is actually going to be applied in daily nutrition therapy practice, which probably makes them inaccurate for this specific purpose.…”
Section: Discussionmentioning
confidence: 85%
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“…21,39 The absence of an adequate PE for the elderly population restricts the estimation of REE in the hospital setting, which would result in a negative effect on the nutrition status of the critically ill elderly, possibly with an increased length of hospital stay and higher mortality risk. 33,34 This suggests that the correct determination of the REE for elderly patients admitted to the ICU might be an important component of their clinical outcomes, especially in the acute stress state, when great discrepancies are depicted between REE-IC and data produced by PEs evaluated in this study. It should also be taken into consideration that most PEs were derived from population samples different from the ones in which the equation is actually going to be applied in daily nutrition therapy practice, which probably makes them inaccurate for this specific purpose.…”
Section: Discussionmentioning
confidence: 85%
“…On the other hand, other studies including adult and elderly patients on mechanical ventilation reinforce the need for a correction factor for the HB equation, since the equation alone presents low concordance with the REE-IC, underestimating the energy needs for this population. 33,34 Limited accuracy was expected of the estimated REE obtained using the HB multiplied by 1.2 since this equation was developed using men and women who were white, healthy, and of normal weight, with only a limited number of elderly individuals in the sample. 35 In addition, when assessing the agreement of the ICC with the REE-IC and REE-PE, the HB multiplied by 1.2 proved to be the only PE with values between 0.60 and 0.80 for both sexes and, compared with the other 5 PEs, the 95% CI for the ICC was the narrowest, although far from 1.0.…”
Section: Discussionmentioning
confidence: 99%
“…Proper nutri-Volume 9, Number 2, December 2017 tional intervention based on an accurate calculation of energy requirements is an important component of treatment in surgical patients. 1,2 Pancreaticoduodenectomy (PD) is a surgical procedure that involves resection and reconstruction of a functional organ directly related to nutrient absorption and digestion.…”
Section: Introductionmentioning
confidence: 99%
“…Although predictive equations are easy to calculate, there are limitations to the equations. Specifically, predictive equations do not take into consideration the impact that a chronic disease state has upon energy utilization or the impact of the patient's body composition on energy requirement because the equations often do not consider the variability in muscle and fat composition . Several studies have demonstrated that predictive equations are unreliable in assessing the nutrition needs in chronically ill children .…”
mentioning
confidence: 99%
“…Specifically, predictive equations do not take into consideration the impact that a chronic disease state has upon energy utilization or the impact of the patient's body composition on energy requirement because the equations often do not consider the variability in muscle and fat composition. 19,21,[23][24][25] Several studies have demonstrated that predictive equations are unreliable in assessing the nutrition needs in chronically ill children. [26][27][28] On average, predictive equations have been shown to have an error range of 7%-67% when compared with indirect calorimetry.…”
mentioning
confidence: 99%