A2 COMPARISON OFANALGESIC EFFECTIVENESS OF COMBINED INTRAPERITONEAL INSTILLATION AND PERIPORTAL INFILTRATION OF BUPIVACAINE WITH INTRAPERITONEAL INSTILLATION OR PERIPORTAL INFILTRATION ALONE AFTER LAPAROSCOPIC CHOLECYSTECTOMY Prajjwal Raj Bhattarai, Balkrishna Bhattarai, Birendra Prasad Sah, Shailesh Adhikary, Ashish Ghimire Anesthesiology and Critical Care and Surgery, BP Koirala Institute of Health Sciences (BPKIHS), Dharan, Nepal