60
Participants
Start Date
December 31, 2015
Primary Completion Date
June 30, 2016
Study Completion Date
June 30, 2016
Ropivacaine
Ultrasound-guided supraclavicular brachial plexus block with 0.5% ropivacaine
Ropivacaine + Dexmedetomidine
Ultrasound-guided supraclavicular brachial plexus block with 0.5% ropivacaine plus low-dose (30 microg) dexmedetomidine
Guangzhou First Municipal People's Hospital, Guangzhou
Guangzhou First People's Hospital
OTHER