1,800
Participants
Start Date
September 1, 2021
Primary Completion Date
September 1, 2022
Study Completion Date
January 1, 2023
Capnography monitoring
Standard monitoring and capnographic monitoring.
Standard monitoring
Standard monitoring but no capnographic monitoring
Renji Hospital, Shanghai
Qilu Hospital of Shandong University, Qingdao
Henan Provincial People's Hospital, Zhenzhou
Henan Provincial People's Hospital
OTHER
Qilu Hospital of Shandong University
OTHER
RenJi Hospital
OTHER