Comparison of the Efficacy of Tidal Volume Breathing and Vital Capacity Breathing During High-flow Nasal Oxygen

Comparison of the Efficacy of Tidal Volume Breathing and Vital Capacity Breathing During High-flow Nasal Oxygen

The purpose of this study is to compare the preoxygenation efficacy of tidal volume breathing and vital capacity breathing.

Inclusion Criteria:

-Adult patients 20 years of age or older who are planning to undergo surgery under general anesthesia

Exclusion Criteria:

-basal skull fracture, 2번 - facial anomaly, 3번 - consciousness disorder, 4번 - Risk of aspiration