Modifed high-fow nasal cannula oxygen therapy versus conventional oxygen therapy in patients undergoing bronchoscopy: A randomized clinical trial

Hypoxemia frequently occurs during bronchoscopy. High-fow nasal cannula (HFNC) oxygen therapy may be a feasible alternative to prevent the deterioration of gas exchange during bronchoscopy. With the convenience of clinical use in mind, we modified an HFNC using a single cannula.