Tropisetron or droperidol in the prevention of postoperative nausea and vomiting

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Abstract
Background: Women undergoing laparoscopic cholecystectomy are susceptible to postoperative nausea and vomiting (PONV). This study was undertaken to evaluate the efficacy of tropisetron or droperidol for preventing PONV after laparoscopic cholecystectomy.Methods: In a prospective, randomised, double‐blind trial, 120 female patients received either tropisetron 5 mg or droperidol 1.25 mg intravenously at the beginning of surgery. A standard general anaesthetic technique and postoperative analgesia were used. Nausea, emetic episodes and the need for rescue medication were recorded for 24 h postoperatively.Results: Nausea was experienced by 55% of the patients in the tropisetron group and by 62% in the droperidol group (ns). The incidence of emetic episodes was 20% and 52% (P=0.001) in the two groups, respectively. Rescue antiemetic medication was needed in 42% and 50% (ns) of the patients, respectively. Patients in the droperidol group were more drowsy in comparison with patients in the tropisetron group, mean sedation score being 6.7 vs 5.7, respectively (P=0.023). No difference in other side‐effects was observed.Conclusion: Tropisetron, when compared with droperidol, had no better efficacy on the prevention of postoperative nausea but resulted in a significantly lower incidence of vomiting after laparoscopic cholecystectomy.

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