2,034
Participants
Start Date
November 10, 2017
Primary Completion Date
February 28, 2018
Study Completion Date
March 30, 2018
High-flow nasal cannula oxygenation
Oxygen is supplied with a high-flow nasal cannula oxygenation device，the flow is up to 60L/min
Shanghai Tongji Hospital, Shanghai
Renji hospital, School of Medicine, Shanghai Jiaotong University, Shanghai
Shanghai Pudong New Area People's Hospital, Shanghai
Shanghai Pudong New Area People's Hospital
OTHER
Shanghai Tongji Hospital, Tongji University School of Medicine
OTHER
RenJi Hospital
OTHER