320
Participants
Start Date
July 31, 2015
Primary Completion Date
July 31, 2019
Study Completion Date
July 15, 2019
Nasal high flow cannula (Fisher & Paykel Healthcare, Auckland, New Zealand)
Nasal high flow therapy
nasal catheter or Venturi mask
Conventional oxygen therapy
Department of respiratory and critical care medicine,Beijing Chao-yang Hospital, Beijing
Li Xuyan
OTHER