800
Participants
Start Date
September 15, 2018
Primary Completion Date
June 29, 2019
Study Completion Date
July 31, 2019
Muscular tissue oxygen saturation guided care
Muscular tissue oxygen saturation monitored at flank and arm will be maintained \> 70% (absolute measurement) and \> baseline throughout the entire procedure.
Peking University Third Hospital, Beijing
The Second Hospital of Hebei Medical University
OTHER
Peking University First Hospital
OTHER
Peking University Third Hospital
OTHER
Shandong Provincial Hospital
OTHER_GOV
The First Affiliated Hospital of Zhengzhou University
OTHER
Beijing Obstetrics and Gynecology Hospital
OTHER
Yale University
OTHER