61
Participants
Start Date
October 1, 2019
Primary Completion Date
August 30, 2020
Study Completion Date
October 31, 2020
Paravertebral block at T4 and T5 level
Paravertebral block is performed at T4 and T5 level under realtime ultrasound guidenance with 10ml of 0.5% ropivacaine for each block, respectively.
Tongji Hospital, Wuhan
Huazhong University of Science and Technology
OTHER