Non-Invasive Ventilation Versus High-flow Nasal Oxygen in Intensive Care Units

Humidified and heated oxygen with a gas flow at least 50 L/min through nasal cannula

NIV will be carried out in pressure-support mode with a minimal pressure-support level of 5 cmH2O targeting a tidal volume around 6 to 8 mL/kg of predicted bodyweight, a positive end-expiratory pressure (PEEP) level at least 8 cm H2O, and FiO2 adjusted to obtain adequate oxygenation