研究单位：[1]RenJi Hospital[2]Henan Provincial People's Hospital Zhengzhou,Henan,China,450003[3]First Affiliated Hospital of Kunming Medical University Kunming,Yunnan,China,650032
研究目的：
Hypoxia is the most common adverse event in gastrointestinal endoscopes sedated with propofol. The nasal mask oxygen kit has good sealing to ensure an adequate oxygen supply and is convenient and economical.The aim of this randomized study was to determine whether the nasal mask oxygen kit reduces the incidence of hypoxia in gastrointestinal endoscopes procedures.
