• Jung-Hee Ryu, Ji-Eun Lee, Young-Jin Lim, Deok-Man Hong, Hee-Pyoung Park, Jong-In Han, Hee-Jung Baik, Hyun-Zu Kim, Kyeong-Tae Min, and Sang-Hwan Do.
• Department of Anesthesiology and Pain Medicine, Seoul National University Bundang Hospital, 166 Gumi-ro, Bundang-gu, Seongnam-si, Gyeonggi-do 463-707, South Korea ; Department of Anesthesiology and Pain Medicine, College of Medicine, Seoul National University, Seoul, South Korea.
• BMC Anesthesiol. 2014 Jan 1; 14: 63.

BackgroundCraniotomy patients have a high incidence of postoperative nausea and vomiting (PONV). This prospective, randomized, double-blind, multi-center study was performed to evaluate the efficacy of prophylactic ramosetron in preventing PONV compared with ondansetron after elective craniotomy in adult patients.MethodsA total of 160 American Society of Anesthesiologists physical status I-II patients aged 19-65 years who were scheduled to undergo elective craniotomy for various intracranial lesions were enrolled in this study. All patients received total intravenous anesthesia (TIVA) with propofol and remifentanil. Patients were randomly allocated into three groups to receive ondansetron (4 mg; group A, n  =  55), ondansetron (8 mg; group B, n  =  54), or ramosetron (0.3 mg; group C, n  =  51) intravenously at the time of dural closure. The incidence of PONV, the need for rescue antiemetics, pain score, patient-controlled analgesia (PCA) consumption, and adverse events were recorded 48 h postoperatively.ResultsAmong the initial 160 patients, 127 completed the study and were included in the final analysis. The incidences of PONV were lower (nausea, 14% vs. 59% and 41%, respectively; P  <  0.001; vomiting, P  =  0.048) and the incidence of complete response was higher (83% vs. 37% and 59%, respectively; P  <  0.001) in group C than in groups A and B at 48 h postoperatively. There were no significant differences in the incidence of PONV or need for rescue antiemetics 0-2 h postoperatively, but significant differences were observed in the incidence of PONV and complete response among the three groups 2-48 h postoperatively. No statistically significant intergroup differences were observed in postoperative pain, PCA consumption, or adverse events.ConclusionIntravenous administration of ramosetron at 0.3 mg reduced the incidence of PONV and rescue antiemetic requirement in craniotomy patients. Ramosetron at 0.3 mg was more effective than ondansetron at 4 or 8 mg for preventing PONV in adult craniotomy patients.Trial RegistrationCLINICAL RESEARCH INFORMATION SERVICE (CRIS) IDENTIFIER: KCT0000320. Registered 9 January 2012.

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