• Semih Arici, Alp Gurbet, Gürkan Türker, Belgin Yavaşcaoğlu, and Sükran Sahin.
• Department of Anesthesiology and Reanimation, Uludag University Faculty of Medicine, Bursa, Turkey.
• Agri. 2009 Apr 1;21(2):54-61.

ObjectivesParacetamol is primarily thought to be a cyclooxygenase inhibitor acting through the central nervous system. Indirect effects of paracetamol are through the serotoninergic system as a non-opioid analgesic. In this study, total abdominal hysterectomy patients were given intravenous (iv) paracetamol 1 g preoperatively or intraoperatively to assess its postoperative analgesic effects.Methods90 patients undergoing total abdominal hysterectomy were enrolled into the study. Patients were randomized into three groups: in Group I, iv paracetamol 1 g was given 30 minutes prior to induction. In Group II, iv paracetamol 1 g was given prior to skin closure. Group III served as the control group and received saline as placebo. Postoperatively, all patients received morphine via patient-controlled analgesia pump. Postoperatively, rest and activity pain scores, sedation scores, hemodynamic parameters, postoperative morphine consumption, side effects, patient satisfaction, and total hospital stay were recorded.ResultsIn the control group, at rest and movement pain scores and total morphine consumption via patient-controlled analgesia were higher than in Groups I and II. When Groups I and II were compared, total morphine consumption was much greater in Group II. Intravenous paracetamol intraoperatively and postoperatively did not result in any hemodynamic effects.ConclusionIn total abdominal hysterectomy, preemptive iv paracetamol 1 g provided good quality postoperative analgesia, with decreased consumption of morphine and minimal side effects.

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