U.S., Dec. 10 -- ClinicalTrials.gov registry received information related to the study (NCT07271979) titled 'Liposomal Bupivacaine Versus Ropivacaine for Preperitoneal Infiltration Analgesia in Upper Abdominal Laparotomy' on Nov. 15.

Brief Summary: Upper abdominal open surgery is associated with significant trauma, and postoperative pain management poses considerable challenges. The inflammatory response triggered by peritoneal incision and the transmission of visceral pain via the vagus nerve are key components of "surgical stress" and pain. A potential intervention strategy involves the local administration of anesthetic agents to suppress peritoneal overreaction and block the cascade of pro-inflammatory cytokines in related nerves. Lipo...