What this Trial Is About

Laparoscopic surgery, characterized by minimal invasiveness, rapid recovery, and shorter hospital stays, has been widely adopted in Gynecologic Oncology. However, the elevation and stretching of the diaphragm following pneumoperitoneum, combined with increased intra-abdominal pressure compressing visceral organs and causing ischemia-hypoxia, can trigger systemic inflammatory responses and lead to postoperLaparoscopic surgery, characterized by minimal invasiveness, rapid recovery, and shorter hospital stays, has been widely adopted in gynecological procedures. However, the elevation and stretching of the diaphragm following pneumoperitoneum, combined with increased intra-abdominal pressure compressing visceral organs and causing ischemia-hypoxia, can trigger systemic inflammatory responses and lead to postoperative pain. Inadequate or delayed pain management may prolong hospitalization, and some patients may develop chronic pain, resulting in altered behavioral patterns. As one of the analgesic strategies after abdominal surgery, transversus abdominis plane block (TAPB) not only reduces opioid consumption and the incidence of complications but also avoids adverse effects associated with epidural analgesia. Nevertheless, the analgesic duration provided by a single-injection TAPB is limited, while continuous TAPB faces constraints in clinical application due to challenges such as catheter fixation.Inadequate or delayed pain management may prolong hospitalization, and some patients may develop chronic pain, resulting in altered behavioral patterns. As one of the analgesic strategies after abdominal surgery, TAPB not only reduces opioid consumption and the incidence of complications but also avoids adverse effects associated with epidural analgesia. Nevertheless, the analgesic duration provided by a single-injection TAPB is limited, while continuous TAPB faces constraints in clinical application due to challenges such as catheter fixation. Liposomal bupivacaine(LB) is a novel, long-acting, sustained-release amide-type local anesthetic, providing localized analgesic effects for up to 72 hours.However, its efficacy and safety in laparoscopic surgery not yet been fully validated. Based on this premise, the present study aims to evaluate and compare the clinical outcomes of Ultrasound-guided TAPB utilizing liposomal bupivacaine plus bupivacaine for postoperative pain management in patients undergoing Laparoscopic Surgery in Gynecologic Oncology.

The Efficacy and Safety of Liposomal Bupivacaine for Transversus Abdominis Plane Block in Relieving Postoperative Pain After Laparoscopic Surgery in Gynecologic Oncology