Comparative Study of Dexmedetomidine and Fentanyl as an Adjuvant to Epidural Bupivacaine for Post-operative Pain Relief in Hepato-biliary Pancreatic Surgery

Background: Postoperative pain responsible for neurohumoral changes which may cause various organ dysfunctions, prolong hospitalization and convalescence. Epidural analgesia confers excellent pain relief and complete dynamic analgesia leading to a substantial reduction in the surgical stress response