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Ondansetron, granisetron, and dexamethasone compared for the prevention of postoperative nausea and vomiting in patients undergoing laparoscopic cholecystectomy : A randomized placebo-controlled study.

Author(s): Erhan Y, Erhan E, Aydede H, Yumus O, Yentur A

Affiliation(s): Department of Surgery, Faculty of Medicine, Celal Bayar University, Manisa, 45040, Turkey. yamacerhan@yahoo.com

Publication date & source: 2008-06, Surg Endosc., 22(6):1487-92. Epub 2007 Nov 20.

BACKGROUND: Laparoscopic cholecystectomies are associated with an appreciably high rate of postoperative nausea and vomiting (PONV). This study was designed to compare the effectiveness of ondansetron, granisetron, and dexamethasone for the prevention of PONV in patients after laparoscopic cholecystectomy. METHODS: A total of 80 American Society of Anesthesiologists (ASA) physical class I-II patients scheduled for laparoscopic cholecystectomy were included in this randomized, double blind, placebo-controlled study. All patients received a similar standardized anesthesia and operative treatment. Patients were randomly divided into four groups (n = 20 each). Group 1, consisting of control patients, received 0.9% NaCl; group 2 patients received ondansetron 4 mg i.v.; group 3 patients received granisetron 3 mg i.v.; and group 4 patients received dexamethasone 8 mg i.v., all before the induction of anesthesia. Both nausea and vomiting were assessed during the first 24 h after the procedure. RESULTS: The total incidence of PONV was 75% with placebo, 35% with ondansetron, 30% with granisetron, and 25% with dexamethasone. The incidence of PONV was significantly less frequent in groups receiving antiemetics (p < 0.05). The differences between dexamethasone, granisetron, and ondansetron were not significant. CONCLUSIONS: Prophylactic dexamethasone 8 mg i.v. significantly reduced the incidence of PONV in patients undergoing laparoscopic cholecystectomy. Dexamethasone 8 mg was as effective as ondansetron 4 mg and granisetron 3 mg, and it was more effective than placebo.

Page last updated: 2008-06-22

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