Effect of bupivacaine intraperitoneal and intra-abdominal bicarbonate in reducing postoperative pain in laparoscopic cholecystectomy: a double-blind randomized clinical trial study.

Objective: We aimed to compare the effect of bupivacaine intraperitoneal with intra-abdominal bicarbonate in reducing postoperative pain in laparoscopic cholecystectomy.

Results: In this double-blind randomized clinical trial study, 58 patients underwent laparoscopic cholecystectomy referred to a hospital in Tehran, Iran (2019), were assigned into three groups: at the end of the surgery, spraying 50 cc of bupivacaine 0.2% through the laparoscopic port; or rinsing the abdomen with 5.