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Background We compared the effects of intravenous lidocaine (IVL) with lumbar epidural lidocaine analgesia (LEA) on pain and ileus after open colonic surgery. Methods Between December 2011 and February 2013, 60 patients were randomly allocated to IVL, LEA, or control group. The IVL group received intraoperatively lidocaine 2 % intravenously (1.5 mg/kg bolus, 2 mg/kg/h infusion) and normal saline...