80
Participants
Start Date
July 1, 2020
Primary Completion Date
March 15, 2021
Study Completion Date
March 15, 2022
paravertebral block
Paravertebral block will be performed at T2,T4 level on the surgical side using out-of-plane approach under ultrasound-guided, with 0.4% ropivacaine 20ml at each injection site.
opioid free anesthesia
propofol, lidocine and muscle relaxant will be used for induction, after laryngeal mask airway insertion, general anesthesia will be maintained.
sham block
Local infiltration at the same site of paravertebral block will be performed, with 1% lidocaine 3ml on each injection site.
opioid general anesthesia
propofol, sufentanil and muscle relaxant will be used for induction, after laryngeal mask airway insertion, general anesthesia will be maintained .
Peking University People's Hospital, Beijing
Peking University People's Hospital
OTHER