Indirect calorimetry is considered the reference method for measuring energy expenditure in intensive care patients. However, in infants and small children weighing less than 10 kilograms, its clinical use has historically been limited due to technical challenges related to low tidal volumes, potential increases in dead space, and measurement precision.
The goal of this observational study is to evaluate the feasibility and performance of indirect calorimetry using the Q-NRG+ device in critically ill children weighing less than 10 kg who are admitted to a pediatric intensive care unit.
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