To Evaluate the Effect of Wound Infiltration With Bupivacaine for Post-operative Pain Relief After Laparoscopic Cholecystectomy

Inclusion criteria * Patients scheduled to undergo laparoscopic cholecystectomy under general anesthesia at department of surgery and department of hepatobiliary system, BSMMU * Patients who are eligible according to ASA Ⅰ -Ⅱ * Female or male, age ≥18 years * Patients who are scheduled for same anesthetic technique and surgical procedure for laparoscopic cholecystectomy * Discharge of patient between 12 hour to 36 hour after performing procedure * Patients given consent for enrollment in study Exclusion criteria * Patients known to be allergic to certain recommended drugs * If patients have history of psychiatric illness * Patients on chronic analgesic therapy for any other indication * Patients who are scheduled for different anesthetic technique and surgical procedure for laparoscopic cholecystectomy * Duration of surgery more than 1 hour * Patients undergoing laparoscopic cholecystectomy for complex gallbladder disease such as incidental gallbladder pancreatitis, gallstone pancreatitis, cholecystoduodenal fistula, mirizzi syndrome * Special population group such as children, pregnant woman, patients with cirrhosis, diabetics * Duration of operative procedure more than 1 hour