A Comparison Study Between Ketamine Versus Tramadol for Pain Management After Major Upper Abdominal Surgery

Abstract

The purpose of the study is the comparison between ketamine and tramadol, regarding the analgesia quality and efficiency, in patients receiving Patient Controlled Analgesia (PCA) morphine, after major upper abdominal surgeries such as hepatectomies, gastrectomies, Whipple procedures and peripheral pancreatectomies. The goal is to bring out an improved analgesia scheme, which can be applied to the clinical work and refine the analgesia provided for major procedures which require increased postoperative opioids doses. In the study, half of patients will receive continuous intravenous infusion of tramadol and Patient Controlled Analgesia morphine and the other half will receive continuous intravenous infusion of ketamine and Patient Controlled Analgesia morphine postoperatively after major upper abdominal surgery. The successful combination of different drugs targets at the improvement of the analgesia provided, the reduction of complications and the exploitation of the pharmacodynamic properties of each drug.

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