High-flow Nasal Cannula Oxygenation Decrease Hypoxia in Gastroscopy Sedated by Propofol

Conditions:   Hypoxia;   Gastric Cancer;   Esophagus Cancer;   Adverse Event
Intervention:   Device: High-flow nasal cannula oxygenation
Sponsors:   RenJi Hospital;   Shanghai Pudong New Area People's Hospital;   Shanghai Tongji Hospital, Tongji University School of Medicine
Recruiting

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