180
Participants
Start Date
January 10, 2021
Primary Completion Date
May 31, 2021
Study Completion Date
July 31, 2021
dexamethasone
Intravenous administration of dexamethasone at different time for the duration of ISB with 0.5% ropivacaine
Shanghai Jiaotong University affiliated Shanghai Sixth People's Hospital, Shanghai
Shanghai Jiao Tong University Affiliated Sixth People's Hospital
OTHER