Abstract of Medical Phd thesis: Research effectiveness of postoperative pain management of continuous wound infusion levobupivacaine 0.2% via multi-hole catheter after abdominal surgery

Comparing the abdominal postoperative analgesic effect between continuous infusion of 0.2% levobupivacaine into incision through the multi-hole catheter with the two methods: (1) intravenous morphine method controlled by the patient and (2) continuous infusion outside the epidural of levobupivacaine mixture 0.125% - fentanyl 2mcg / ml.