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To lower the risk of incorrectly feeding critically ill patients, indirect calorimetry (IC) is proposed as the most ideal method to evaluate energy expenditure and to establish caloric goals. New IC devices are progressively introduced but validation of this new generation remains challenging and arduous.
De Waele, E., Honore, P. M., & Spapen, H. D. (2016, June 5). New generation indirect calorimeters for measuring energy expenditure in the critically ill: A rampant or reticent revolution? Critical Care. BioMed Central Ltd. https://doi.org/10.1186/s13054-016-1315-4