Journal
SEMINARS IN FETAL & NEONATAL MEDICINE
Volume 12, Issue 1, Pages 2-10Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.siny.2006.10.008
Keywords
energy balance; energy expenditure; extremely low; birth-weight infants; fetal origins of adult diseases; growth; outcome
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The determination of the appropriate energy and nutritional requirements of a newborn infant requires a clear goal of the energy and other compounds to be administered, valid methods to measure energy balance and body composition, and knowledge of the neonatal metabolic capacities. Providing an appropriate amount of energy to newborn infants remains a challenge considering the great number of newborn infants who suffer in-hospital growth retardation. The energy requirements of a newborn infant are influenced by several factors - basal metabolism, growth, energy expenditure, and energy losses - which change continuously during development. Calculating the energy requirements of preterm infants is subject to error if general recommendations are applied without recognition of the large variation in factors that influence, for example, energy expenditure. Therefore, energy recommendations should be individualized and preferably based on measurements of energy expenditure. In particular, extremely low birth-weight and very low birth-weight infants are prone to develop negative energy and nutrient balances, due to Low energy intake, low energy reserves and high energy demands. Early energy accretion is not only essential for growth but also influences neurodevetopmental outcome and physical health in the tong term, thereby underlining the importance of adequate neonatal nutrition. (c) 2006 Elsevier Ltd. All rights reserved.
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