Postoperative analgesic effect of dexmedetomidine combined with TPVB applied to open gastrectomy for gastric cancer.

Objectives: This study is aimed to investigate the analgesic effect of combined dexmedetomidine and thoracic paravertebral nerve block (TPVB) on gastric cancer (GC) patients undergoing open gastrectomy.

Methods: From May 2019 to Nov 2020, a total of 80 GC patients preparing for open gastrectomy were enrolled in our hospital and were divided into the ropivacaine (RO) group and the ropivacaine + dexmedetomidine (RD) group . All of the patients underwent TPVB.