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Energy expenditure in children with severe head injury: lack of agreement between measured and estimated energy expenditure. 2006

Suresh Havalad, and Maureen A Quaid, and Vytautas Sapiega
Division of Pediatric Critical Care Medicine, Department of Pediatrics, Advocate Lutheran General Children's Hospital, 1775 Dempster St, Park Ridge, IL 60068, USA. Suresh.Havalad-MD@advocatehealth.com

BACKGROUND The purpose of this study was to test the hypotheses that estimates of resting energy expenditure (REE) vary significantly from measured energy expenditure in a population of head-injured children and are not accurate for use in determining nutrition needs in this population. METHODS This is a retrospective study of 30 children with severe head injury, with Glasgow Coma Scale (GCS) score of <8 and needing mechanical ventilation. Measured REE was obtained using indirect calorimetry. Estimated REEs were calculated using Harris-Benedict, World Health Organization (WHO), Schofield, and White formulas. Severity of illness was calculated using Pediatric Risk of Mortality (PRISM) score. Agreement between measured REE and estimated REE was tested using the Bland-Altman method. Correlation coefficient between PRISM score and measured REE was calculated using Spearman test. RESULTS More than half of the estimates of REE differed from measured REE by >10%. Significant disagreement between estimated REE and measured REE was demonstrated using the Bland-Altman method. There was no correlation between severity of illness and measured REE to explain the inaccuracies of REE estimates. CONCLUSIONS Energy expenditure in critically ill children cannot be estimated accurately; hence, nutrition for critically ill children with head injury should be provided according to measurement of REE to avoid the consequences of overfeeding or malnutrition.

UI MeSH Term Description Entries
D008297 Male Males
D009751 Nutritional Requirements The amounts of various substances in food needed by an organism to sustain healthy life. Dietary Requirements,Nutrition Requirements,Dietary Requirement,Nutrition Requirement,Nutritional Requirement,Requirement, Dietary,Requirement, Nutrition,Requirement, Nutritional,Requirements, Dietary,Requirements, Nutrition,Requirements, Nutritional
D009752 Nutritional Status State of the body in relation to the consumption and utilization of nutrients. Nutrition Status,Status, Nutrition,Status, Nutritional
D011237 Predictive Value of Tests In screening and diagnostic tests, the probability that a person with a positive test is a true positive (i.e., has the disease), is referred to as the predictive value of a positive test; whereas, the predictive value of a negative test is the probability that the person with a negative test does not have the disease. Predictive value is related to the sensitivity and specificity of the test. Negative Predictive Value,Positive Predictive Value,Predictive Value Of Test,Predictive Values Of Tests,Negative Predictive Values,Positive Predictive Values,Predictive Value, Negative,Predictive Value, Positive
D002153 Calorimetry, Indirect Calculation of the energy expenditure in the form of heat production of the whole body or individual organs based on respiratory gas exchange. Calorimetry, Respiration,Calorimetries, Indirect,Calorimetries, Respiration,Indirect Calorimetries,Indirect Calorimetry,Respiration Calorimetries,Respiration Calorimetry
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D002675 Child, Preschool A child between the ages of 2 and 5. Children, Preschool,Preschool Child,Preschool Children
D004734 Energy Metabolism The chemical reactions involved in the production and utilization of various forms of energy in cells. Bioenergetics,Energy Expenditure,Bioenergetic,Energy Expenditures,Energy Metabolisms,Expenditure, Energy,Expenditures, Energy,Metabolism, Energy,Metabolisms, Energy
D005260 Female Females
D006259 Craniocerebral Trauma Traumatic injuries involving the cranium and intracranial structures (i.e., BRAIN; CRANIAL NERVES; MENINGES; and other structures). Injuries may be classified by whether or not the skull is penetrated (i.e., penetrating vs. nonpenetrating) or whether there is an associated hemorrhage. Frontal Region Trauma,Head Injuries,Head Trauma,Occipital Region Trauma,Parietal Region Trauma,Temporal Region Trauma,Craniocerebral Injuries,Crushing Skull Injury,Forehead Trauma,Head Injuries, Multiple,Head Injury, Minor,Head Injury, Open,Head Injury, Superficial,Injuries, Craniocerebral,Injuries, Head,Multiple Head Injuries,Occipital Trauma,Open Head Injury,Superficial Head Injury,Trauma, Head,Craniocerebral Injury,Craniocerebral Traumas,Crushing Skull Injuries,Forehead Traumas,Frontal Region Traumas,Head Injuries, Minor,Head Injuries, Open,Head Injuries, Superficial,Head Injury,Head Injury, Multiple,Head Traumas,Injuries, Minor Head,Injuries, Multiple Head,Injuries, Open Head,Injuries, Superficial Head,Injury, Craniocerebral,Injury, Head,Injury, Minor Head,Injury, Multiple Head,Injury, Open Head,Injury, Superficial Head,Minor Head Injuries,Minor Head Injury,Multiple Head Injury,Occipital Region Traumas,Occipital Traumas,Open Head Injuries,Parietal Region Traumas,Region Trauma, Frontal,Region Trauma, Occipital,Region Trauma, Parietal,Region Traumas, Frontal,Region Traumas, Occipital,Region Traumas, Parietal,Skull Injuries, Crushing,Skull Injury, Crushing,Superficial Head Injuries,Temporal Region Traumas,Trauma, Craniocerebral,Trauma, Forehead,Trauma, Frontal Region,Trauma, Occipital,Trauma, Occipital Region,Trauma, Parietal Region,Trauma, Temporal Region,Traumas, Craniocerebral,Traumas, Forehead,Traumas, Frontal Region,Traumas, Head,Traumas, Occipital,Traumas, Occipital Region,Traumas, Parietal Region,Traumas, Temporal Region

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