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Review
. 2019 Oct;34(5):673-680.
doi: 10.1002/ncp.10390. Epub 2019 Aug 16.

Energy Expenditure and Protein Requirements Following Burn Injury

Amy K Wise  1 , Kathleen A Hromatka  1 , Keith R Miller  1
Affiliations
Review

Energy Expenditure and Protein Requirements Following Burn Injury

Amy K Wise et al. Nutr Clin Pract. 2019 Oct.

Abstract

Severe burn injuries have long been known to have a profound effect on metabolic equilibrium that can persist after resolution of the cutaneous injuries. Following burn injury, metabolism is a dynamic state resulting in the need for frequent interval reassessment over the course of the care continuum. The acute phase of injury transitions to chronic alterations in macronutrient utilization characterized by futile energy cycling and disproportionate catabolism of skeletal muscle. Protein supplementation appears to be preferentially distributed to the burn wound rather than the skeletal muscle pool. Accurate assessment of caloric and protein requirements is extremely difficult in these patients but is an essential step in efforts to attenuate functional impairment. Indirect calorimetry should be utilized to determine caloric requirements, but trophic feeding strategies are preferred in the initial resuscitative phase to prevent overfeeding while maintaining enteric and immune function. Controversy persists regarding optimal protein targets, and weight-based estimates remain the norm. Exogenous protein and caloric provision performed in isolation is insufficient to optimize outcomes and should be incorporated within a multidisciplinary approach to include muscle loading and pharmaceutical adjuncts.

Keywords: burns; catabolism; hypermetabolism, protein; resting energy expenditure.

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