Resting energy expenditure by indirect calorimetry versus the ventilator-VCO derived method in critically ill patients: The DREAM-VCO prospective comparative study.

Background & Aims: Both overfeeding and underfeeding of intensive care unit (ICU) patients are associated with worse outcomes. Predictive equations of nutritional requirements, though easily implemented, are highly inaccurate. Ideally, the individual caloric target is based on the frequent assessment of energy expenditure (EE).