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Ramosetron compared with granisetron for the prevention of vomiting following strabismus surgery in children.

Author(s): Fujii Y, Tanaka H, Ito M

Affiliation(s): Department of Anaesthesiology, Toride Kyodo General Hospital, Toride City, Ibaraki, Japan. yfujii@igaku.md.tsukuba.ac.jp

Publication date & source: 2001-06, Br J Ophthalmol., 85(6):670-2.

Publication type: Clinical Trial; Randomized Controlled Trial

BACKGROUND/AIMS: Postoperative vomiting occurs frequently after strabismus surgery in children. Granisetron, a selective 5-hydroxytryptamine type 3 receptor antagonist, is effective for the prevention of vomiting following paediatric strabismus surgery. Ramosetron, another new antagonist of 5-hydroxytryptamine type 3 receptor, has more potent and longer acting properties than granisetron against cisplatin induced emesis. This study was undertaken to compare the efficacy and safety of granisetron and ramosetron for the prevention of vomiting following strabismus surgery in children. METHODS: In a randomised, double blinded manner 80 children, aged 4-10 years, received intravenously granisetron 40 microg/kg or ramosetron 6 microg/kg (n=40 each) at the end of surgery. A standard general anaesthetic technique and postoperative analgesia were used. Emetic episodes and safety assessment were performed during the first 24 hours and the next 24 hours after anaesthesia. RESULTS: The percentage of patients who were emesis free during 0-24 hours after anaesthesia was 85% with granisetron and 90% with ramosetron, respectively (p = 0.369); the corresponding rate during 24-48 hours after anaesthesia was 70% and 95% (p = 0.003). No clinically serious adverse events caused by the study drug were observed in any of the groups. CONCLUSION: Prophylactic antiemetic therapy with ramosetron is comparable with granisetron for the prevention of vomiting during 0-24 hours after anaesthesia in children undergoing strabismus surgery. During 24-48 hours after anaesthesia, ramosetron is more effective than granisetron for prophylaxis against postoperative vomiting.

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