Efficacy of Intravenous Lidocaine on Postoperative Pain and Recovery in Patients Undergoing Hepatectomy

Patients who meet the enrollment criteria will be randomized 1:1 to either the lidocaine or the placebo group. In the lidocaine group, at the end of the induction of general anesthesia, a bolus injection of lidocaine 1.5 mg/kg, calculated using the patient's ideal body weight and given as an infusion over 10 minutes, followed by a continuous infusion of lidocaine at 1.5 mg/kg per hour for the whole surgical procedure and will be discontinued at the end of surgery. In the placebo group, the same volume of normal saline will be administered during anesthesia.