Asymmetric High-flow Nasal Cannula (HFNC) vs Standard HFNC for Post Extubation High-risk Group

"* Both the test group and the control group apply high flow oxygen therapy for at least 24 hours from the time of initial excretion (0h), and only the nasal interface is applied differently depending on the allocation group.~* The initial flow rate setting is 10 L/min, and it can be adjusted up to 50 L/min within the range where the subject does not experience discomfort. Except for cases where the patient complains of being hot, the initial temperature setting is 37°C, and the inhaled oxygen concentration (FiO2) may be adjusted to a target of 93% or more of peripheral oxygen saturation (SpO2) in the range of 21 to 100%.~* After 24 hours, high flow oxygen therapy is discontinued and conventional oxygen therapy can be applied if necessary."

"* Both the test group and the control group apply high flow oxygen therapy for at least 24 hours from the time of initial excretion (0h), and only the nasal interface is applied differently depending on the allocation group.~* The initial flow rate setting is 10 L/min, and it can be adjusted up to 50 L/min within the range where the subject does not experience discomfort. Except for cases where the patient complains of being hot, the initial temperature setting is 37°C, and the inhaled oxygen concentration (FiO2) may be adjusted to a target of 93% or more of peripheral oxygen saturation (SpO2) in the range of 21 to 100%.~* After 24 hours, high flow oxygen therapy is discontinued and conventional oxygen therapy can be applied if necessary."