The Effect of Intravenous Lidocaine and Intraperitoneal Lidocaine Irrigation on Pain After Laparoscopic Cholecystectomy

This prospective randomized study aims to comparison the effectiveness of intravenous lidocaine injection and intraperitoneam lidocaine irrigation on the relief of pain in patients undergoing laparoscopic cholecystectomy. A total of 83 patients will be randomized into one of three groups (group C or group I or group P) based on Excel number generation. Patients in group C will receive normal saline intravenous injection, and patients in group I will receive an intravenous bolus injection of 1.5 mg/kg lidocaine followed by a continuous lidocaine infusion of 2 mg/kg/hr. Patients in group P will receive intraperitoneal lidocaine irrigation with 3.5 mg/kg lidocaine and normal saline 100cc. Visual analogue scale pain scores, fentanyl consumption and the frequency at which patients pushed the button (FPB) of a patient-controlled analgesia system will be recorded at 2, 4, 8, 12, 24, 48 hours postoperatively.