77
Participants
Start Date
October 31, 2015
Primary Completion Date
June 30, 2016
Study Completion Date
June 30, 2016
preoperative 0.5% ropivacaine hydrochloride preoperative
Before surgery (Pre RSB) , a bilateral RSB with ropivacaine hydrochloride will be performed under ultrasound guidance by one anaesthesiologist.At the end of surgery, a bilateral RSB with saline will be performed under ultrasound guidance by one anaesthesiologist.
postoperative 0.5% Ropivacaine hydrochloride
Before surgery, a bilateral RSB with saline will be performed under ultrasound guidance by one anaesthesiologist.At the end of surgery, a bilateral RSB with ropivacaine hydrochloride will be performed under ultrasound guidance by one anaesthesiologist.
the First Hospital of China Medical University, Shenyang
China Medical University, China
OTHER