Indirect Calorimetry in Clinical Practice

International audienceIndirect calorimetry (IC) is considered as the gold standard to determine energy expenditure,by measuring pulmonary gas exchanges. It is a non-invasive technique that allows clinicians topersonalize the prescription of nutrition support to the metabolic needs and promote a better clinicaloutcome. Recent technical developments allow accurate and easy IC measurements in spontaneouslybreathing patients as well as in those on mechanical ventilation. The implementation of IC inclinical routine should be promoted in order to optimize the cost–benefit balance of nutrition therapy.This review aims at summarizing the latest innovations of IC as well as the clinical indications,benefits, and limitations