154
Participants
Start Date
July 12, 2019
Primary Completion Date
November 11, 2019
Study Completion Date
November 18, 2019
Dexmedetomidine Group
combination of ropivacaine and dexmedetomidine 100 ug every time
dexamethasone group
combination of ropivacaine and dexamethasone 10mg every time
control group
block with only ropivacaine
Department of Anesthesiology, the First Hospital of China Medical University, Shenyang
China Medical University, China
OTHER