Control Group:0.375% ropivacaine 20ml was injected into the thoracic 5 and 6 intervertebral paravertebral spaces under the guidance of thoracoscopy

Comparative study of the analgesic effect of different adjuvants combined with ropivacaine in thoracoscopic direct visualisation of thoracic paravertebral block in postoperative analgesia of thoracic surgery

Comparision of postoperative analgesia of thoracic paravertebral block under thoracoscopy with different doses of Esketamine combined with ropivacaine in thoracic surgery