Nasal Mask Kit in Gastrointestinal Endoscopy

Nasal Mask Oxygen Reduces the Incidence of Hypoxia Undergoing Gastrointestinal Endoscopy Under Propofol Sedation: a Multicenter Randomized Controlled Trial

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.

Inclusion Criteria:

• 18≤ Age ≤60
• patients undergoing combined gastroendoscopy and colonoscopy procedure
• patients signed informed consent form
• ASA classification I-II
• Estimated procedure time <=45min

Exclusion Criteria:

• Coagulation disorders or a tendency of nose bleeding
• Diagnosed heart disease (heart failure, angina, myocardial infarction, arrhythmia, etc.)
• Diagnosed chronic obstructive pulmonary disease or current other acute or chronic lung disease requiring supplemental chronic or intermittent oxygen therapy)
• hypoxia (SpO2< 90 % )
• Upper respiratory tract infection
• increased intracranial pressure
• Fever (core body temperature >37.5 ℃)
• Pregnancy, breastfeeding, or positive pregnancy test
• Emergency procedure or surgery
• Multiple trauma
• Allergy to propofol or tape and adhesives
• BMI<18.5 or BMI>30