The Comparison of Ketorolac, Paracetamol and Pethidine on Postoperative Pain Control for Outpatient Transurethral Lithotripsy

Background and Aim: Treatment of acute postoperative pain is one of the most important measures to improve recovery. Different methods of local and regional anesthesia, and also numerous intravenous drugs have been used. In this study, the analgesic effect ketorolac, paracetamol and pethidine in the postoperative pain control of outpatient transurethral lithotripsy was evaluated. Materials and Methods: This clinical trial was performed on 96 patients who were candidates for outpatient transurethral lithotripsy in Mashhad Imam Reza Hospital. In randomized double blinded study, at the end of the operation, 30 mg of intravenous ketorolac to the first group, 1 gram paracetamol in half an hour to the second group and 50 mg of pethidine to the third group were injected. Pain was assessed every 10 minutes to half an hour and then, every half an hour to 4 hours by numerical rating scale (NRS). Finally, the data were analyzed by SPSS v16 software. The relationship between quantitative variables was analyzed by analysis of variance and the qualitative variables was assessed by Chi-square test and P