204
Participants
Start Date
June 30, 2012
Primary Completion Date
December 31, 2016
Study Completion Date
December 31, 2016
noninvasive positive pressure ventilation
Patients in the NPPV group are ventilated using the CPAP or bilevel positive airways pressure S/T mode.
oxygen therapy
In the control group, Venturi masks are used to maintain SpO2 at 92% to 96% by adjusting the oxygen flow rates.
Beijing Hospital of the Ministry of Health, Beijing
Beijing Hospital
OTHER_GOV