THRIVE Improves Early Postoperative Atelectasis in Long-Time Non-Tracheal Intubation Anesthesia for Gastrointestinal Endoscopy: a Clinical Study

Inclusion criteria

• Multiple polyps resection, ESD(Endoscopic Submucosal Dissection) , EMR(Endoscopic Mucosal Resection), enteroscopy and other gastrointestinal endoscopic diagnosis and treatment were performed
• The duration of anesthesia is more than 30 minutes, that is, from induction to withdrawal of anesthesia
• ASA(American Society of Anesthesiologists) ≤ II 4.18kg/m2<BMI<30 kg/m2

5.Informed consent, voluntary participation in the experiment, and signed by the subject informed consent

Exclusion criteria

• ASA classification ≥ III;
• History of previous lung or nasal surgery;
• History of chronic obstructive pulmonary disease (COPD) or restrictive lung disease;
• History of obstructive sleep apnea syndrome;
• History of upper airway obstruction;
• History of head and neck radiation therapy;
• Significant nasal septum deviation;
• Active infection (defined as a white blood cell count >10*10^9 or a body temperature >38°C);
• Gastrointestinal perforation;
• Combined use of other anesthetic methods or inhalation anesthetics outside of non-intubated intravenous anesthesia;
• Concurrent other medical procedures besides the prescribed gastrointestinal endoscopic procedures, such as ERCP(Endoscopic Retrograde Cholangiopancreatography);
• Severe communication disorders due to conditions like severe hearing impairment or dementia;
• Disagreement with participation in the study.