Prevention of shoulder tip pain after right hemihepatectomy

INTERVENTION: At end of proposed surgery prior to closure of abdomen, the diaphragm will be infiltrated with 20 ml of solution consisting of either 0.25% bupivicaine or 0.9% saline by the surgeon. Solutions will be made up in Pharmacy and delivered in sterile syringes such that neither surgeon nor anaesthetist will know what has been administered. Closure of abdomen and recovery from anaesthesia will proceed in normal way and patient will be moved to recovery area. When recovered they will be assessed for presence/absence of shoulder‐tip and/or abdominal pain. (If abdominal pain is present, epidural will be topped up in usual manner). If shoulder‐tip pain is present attempts will be made to rate this as mild, moderate or severe. Rescue analgesia will be with ketorolac as is current practice. CONDITION: Signs and Symptoms: Post‐operative pain ; Signs and Symptoms ; Post‐operative pain PRIMARY OUTCOME: Not provided at time of registration SECONDARY OUTCOME: Not provided at time of registration INCLUSION CRITERIA: 40 adult patients