Trophic Nutrition in Patients Submitted to High Flow Oxygen Therapy and / or Non Invasive Mechanical Ventilation

"According to previously published studies of Trophic Nutritions in critically ill patients, an energy goal of 20-30% estimated caloric needs of 20-30 kcal / kg and a protein intake of 1.2 to 2.0 g / kg / day of proteins will be established. at most 72 hours after the start of nutritional therapy.~The rhythm of initiation and increase of enteral contributions will be at the discretion of each participating ICU. Prokinetic or parenteral nutrition (PN) complementary will not be used routinely, leaving its indication at the discretion of the responsible physician.~A hyperproteic nutritional formula (10 g / 100 ml) will be used, with a caloric intake of 1.2 kcal / ml and a non-protein kcal / nitrogen ratio of 52: 1. TN will be administered over 23 hours each day by continuous infusion pump. The head of the patient's bed will rise above 30° as much as possible to reduce the risk of aspiration. The Gastric Residue Volume (GRV) will be measured every 24 hours."