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Ondansetron 4 mg for the prevention of nausea and vomiting after minor laparoscopic gynaecological surgery.

Author(s): Suen TK, Gin TA, Chen PP, Rowbottom YM, Critchley LA, Ray AK

Affiliation(s): Department of Anaesthesia and Intensive Care, Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, N.T.

Publication date & source: 1994-04, Anaesth Intensive Care., 22(2):142-6.

Publication type: Clinical Trial; Randomized Controlled Trial

We studied the efficacy and safety of intravenous ondansetron 4 mg for the prevention of postoperative nausea and vomiting after minor gynaecological laparoscopic surgery in Oriental women. This double-blind randomised study compared ondansetron with placebo, given before the induction of anaesthesia. The anaesthetic technique used thiopentone, fentanyl, atracurium, nitrous oxide and isoflurane. Patients were studied for 24 h with nausea assessed using a verbal numeric scale from 0-10 and emetic episodes recorded as they occurred. Results were available for 102 patients in each group. In the first postoperative hour, fewer patients in the ondansetron Group (12%) had emetic episodes compared with the placebo group (33%, P < 0.01). Nausea score over the first hour (sum of three readings at 0, 30 and 60 min) was lower in the ondansetron group (median 1.6) compared with the placebo group (3.1, P < 0.05). Over the 24 h period, fewer patients in the ondansetron group had emetic episodes (25%) or nausea (43%) compared with patients in the placebo group (56%, P < 0.01) and (58%, P < 0.05) respectively. No adverse events were seen. Ondansetron 4 mg was more effective than placebo in preventing postoperative nausea and vomiting throughout the 24 h after minor laparoscopic surgery.

Page last updated: 2006-01-31

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