280
Participants
Start Date
November 30, 2016
Primary Completion Date
February 28, 2017
Study Completion Date
February 28, 2017
Individualized opioid analgesia
(a)positive result 10μg/kg morphine; negative result 50μg/kg morphine.
conventional opioid analgesia
(b) all received 25μg/kg morphine
Chilren's Hospital of Fudan University, Shanghai
Children's Hospital of Fudan University
OTHER