• Amanda Y Leong, Catherine J Field, and Bodil M Larsen.
• Bodil M. Larsen, Neonatal and Pediatric Intensive Care Units, Stollery Children's Hospital, Office: 3G1.23, 8215-112 St NW, Edmonton, AB, T6G 2C8, Canada. Email: bodil.larsen@albertahealthservices.ca.
• Nutr Clin Pract. 2013 Oct 1;28(5):572-9.

AbstractThere may be a correlation in critically ill children between the accuracy of estimated energy requirement and infection, mortality, and length of stay. Historically, energy needs were estimated using predictive equations with stress factor adjustments. The purpose of this review is to evaluate the evidence for indirect calorimetry, predictive equations, and other clinical indicators (ie, patient outcomes) to estimate energy requirements of the postoperative, critically ill, cardiac infant. Consistent with current guidelines, indirect calorimetry provides the best estimate of energy requirements for critically ill children. Predictive equations are unreliable, either over- or underestimate energy requirements, and do not take into account the metabolic changes that occur in the postoperative cardiac infant. To address the changing metabolic state throughout the course of illness, clinicians need to individualize recommendations by implementing frequent indirect calorimetry measurements at bedside. Actual energy delivery to the postoperative cardiac surgery child in the pediatric intensive care unit (PICU) can be further hindered by many procedural and patient barriers. The provision of appropriate caloric requirements may help clinicians correct the metabolic state and promote recovery and anabolism. Therefore, optimizing nutrition intake of the postoperative, cardiac surgical child requires a paradigm shift toward individualized nutrition prescription, in the context of a PICU-specific feeding algorithm.

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