Comparison of the Efficacy of High-flow Nasal Oxygen Therapy and Facial Mask Ventilation on the Increase of the Oxygen Reserve Index During Anesthetic Induction

Comparison of the Efficacy of High-flow Nasal Oxygen Therapy and Facial Mask Ventilation on the Increase of the Oxygen Reserve Index During Anesthetic Induction

The purpose of this study is to compare the ability of oxygenation with high-flow nasal oxygen therapy and mask ventilation technique for induction of anesthesia in adult patients who are planning to undergo surgery under general anesthesia.

Inclusion Criteria:

• adult patients aged over 19 years who are scheduled for sleep endoscopy

Exclusion Criteria:

• basal skull fracture
• facial anomaly
• consciousness disorder
• Risk of aspiration
• necessity of awake fiberoptic intubation due to the large vocal cord mass, endotracheal tumor or bleeding.