Objective: To compare the efficacy of ramosetron, midazolam, and the combination of ramosetron and midazolam in the prevention of postoperative nausea and vomiting (PONV) in female patients undergoing thyroidectomy. Methods: Patients were randomized to receive 0.3 mg ramosetron (Group R), 75 μg/kg midazolam (Group M) or 0.3 mg ramosetron combined with 75 μg/kg midazolam (Group RM) before the induction of anaesthesia. PONV, use of rescue antiemetics, pain severity and fentanyl consumption were assessed for 24 h after thyroidectomy. Results: A total of 100 patients were enrolled; 94 patients completed the study. The severity of nausea was statistically significantly reduced at 0-2 h in Group RM compared with Groups R and M, and at 2-6 h in Group RM compared with Group M. The incidence of retching and vomiting was significantly lower at 0-2 h, 2-6 h, 6-12 h in Group RM than in Group M, and lower in Group R than Group M at 6-12 h. The requirement for rescue antiemetics was significantly lower at 0-2 h in group RM than in group M. Conclusion: The combination therapy of ramosetron and midazolam provided superior antiemetic efficacy compared with midazolam single therapy, but did not show any significant additional benefits compared with ramosetron single therapy.
Bibliographical noteFunding Information:
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2012R1A1A1003700).
- postoperative nausea and vomiting