Flow Rates of High-flow Nasal Cannula and Extubation Outcome

"The flow rates of HFNC(high-flow nasal cannula) is set as 60L/min(temperature:34°C).~Initial FiO2 is 100%, which would be titrated down to the minimal level to keep SpO2 ≥ 92% within 30 minutes after extubation.~After that, the flow rate setting is fixed for 24hrs +/- 6 hrs; then, is tapered to 30 L/min and kept for 12 more hours. Afterwards, HFNC would be changed to conventional oxygen therapy to keep SpO2≥ 92%."

"The flow rates of HFNC(high-flow nasal cannula) is set as 40L/min(temperature:34°C).~Initial FiO2 is 100%, which would be titrated down to the minimal level to keep SpO2 ≥ 92% within 30 minutes after extubation.~After that, the flow rate setting is fixed for 24hrs +/- 6 hrs; then, is tapered to 30 L/min and kept for 12 more hours. Afterwards, HFNC would be changed to conventional oxygen therapy to keep SpO2≥ 92%."