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Nutr Metab (Lond). 2010 Jul 23;7:63. doi: 10.1186/1743-7075-7-63.

Rest energy expenditure is decreased during the acute as compared to the recovery phase of sepsis in newborns.

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1
Departamento de Pediatria, Universidade de São Paulo (USP), São Paulo, SP, Brasil. rfeferbaum@uol.com.br.

Abstract

BACKGROUND:

Little is known with respect to the metabolic response and the requirements of infected newborns. Moreover, the nutritional needs and particularly the energy metabolism of newborns with sepsis are controversial matter. In this investigation we aimed to evaluate the rest energy expenditure (REE) of newborns with bacterial sepsis during the acute and the recovery phases.

METHODS:

We studied nineteen neonates (27.3 +/- 17.2 days old) with bacterial sepsis during the acute phase and recovery of their illness. REE was determined by indirect calorimetry and VO2 and VCO2 measured by gas chromatography.

RESULTS:

REE significantly increased from 49.4 +/- 13.1 kcal/kg/day during the acute to 68.3 +/- 10.9 kcal/kg/day during recovery phase of sepsis (P < 0.01). Similarly, VO2 (7.4 +/- 1.9 vs 10 +/- 1.5 ml/kg/min) and VCO2 (5.1 +/- 1.7 vs 7.4 +/- 1.5 ml/kg/min) were also increased during the course of the disease (P < 0.01).

CONCLUSION:

REE was increased during recovery compared to the sepsis phase. REE of septic newborns should be calculated on individualized basis, bearing in mind their metabolic capabilities.

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