180
Participants
Start Date
May 10, 2024
Primary Completion Date
December 20, 2024
Study Completion Date
March 20, 2026
Low-dose ropivacaine
0.5 ml/Kg ropivacaine
Medium-dose of ropivacaine
1ml/Kg ropivacaine
High-dose ropivacaine
1.5 ml/Kg ropivacaine
Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan
Henan Provincial People's Hospital
OTHER
Wuhan Children's Hospital
OTHER
Yilin Zhao
OTHER