• Sifna Tahir, Altaf Ahmad Mir, and Abdul Hameed.
• Department of Anesthesiology and Critical Care, GMC, Srinagar, Jammu and Kashmir, India.
• Anesth Essays Res. 2018 Jul 1; 12 (3): 636-643.

BackgroundIn patients undergoing laparoscopic surgeries, postoperative nausea and vomiting (PONV) is a serious concern. With an incidence of 46%-72%, PONV hampers the postoperative recovery in spite of the availability of many antiemetic drugs. The purpose of this study was to prospectively evaluate the efficacy of palonosetron and granisetron for the prevention of PONV in patients undergoing laparoscopic abdominal surgery.AimsThe aim of this study was to evaluate and compare the efficacy of palonosetron and granisetron in preventing PONV and to compare the duration of action and side effects in patients undergoing laparoscopic abdominal surgery under general anesthesia.Settings And DesignEighty patients who were comparable in all aspects were considered for this study. After their consent, they participated in this prospective, randomized, double-blinded, comparative study.Materials And MethodsIn this observational study, 80 patients of either gender who were undergoing laparoscopic abdominal surgery under general anesthesia were enrolled in the study. Based on computer randomization, these patients were divided equally into two groups of 40 patients each in double-blinded manner. The treatments were given intravenously 5 min before induction of anesthesia. The episodes of PONV, severity of nausea/vomiting, and side effects were observed during the first 48 h after surgery.Statistical TestsAt the end of study, results were compiled and SPSS® statistical package version 18.0 (SPSS Inc., Chicago, IL, USA). Two independent samples t-test was used for quantitative data, and Chi-square or Fisher's exact test was used for qualitative data. P < 0.05 was considered significant.ResultsThe incidence of PONV during 0-2 h in the postoperative period was 15% with palonosetron and 27.5% with granisetron; the incidence during 2-24 h postoperatively was 20% with palonosetron and 30% with granisetron. Both palonosetron and granisetron had comparable effectiveness as antiemetic during the early postoperative periods (0-24 h). During 24-48 h, the incidence was 17.5% and 37.5%, respectively (P = 0.04). Safety profile was similar in both the groups (P = 0.6).ConclusionThere were no significant differences in the overall incidence of PONV and complete responders for palonosetron and granisetron group in the early recovery period. However, due to its prolonged duration of action, palonosetron was more effective than granisetron for long-term prevention of PONV after laparoscopic abdominal surgery.

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