Background: Nausea and vomiting is a common complication after gynecological surgeries, especially laparoscopy, which can lead to discomfort and restlessness in the patients. The aim of the study was to compare the effect of ondansetron-dexamethasone and metoclopramide-dexamethasone on postoperative nausea and vomiting following gynecological laparoscopy.
Materials and methods: In this double-blind clinical trial, 68 females scheduled for gynecological laparoscopy and age range of 18-40 years were randomly divided into two groups. Group OD received ondansetron 4 mg plus dexamethasone 8 mg and group MD received metoclopramide 10 mg plus dexamethasone 8 mg, 15 min before the end of surgery. The incidence of nausea and vomiting and need for rescue medication was assessed during the recovery period, as well as at 2, 4, 6, 12, and 24 h after surgery. The data were analyzed using STATA software version 12 and a significance level of <0.05 was considered in this research.
Results: The incidence of nausea in ondansetron and metoclopramide groups was 23.3% and 33.3%, respectively, and the frequency of vomiting was 10% and 16.6%, respectively, which showed no significant difference (P > 0.05). The highest incidence of nausea and vomiting in patients belonged to the metoclopramide group inside 4-6 h after surgery.
Conclusion: Our study showed that no significant difference was observed in the incidence of nausea and vomiting between ondansetron-dexamethasone and metoclopramide-dexamethasone groups following laparoscopic gynecological surgery; however, the number of patients with nausea and vomiting was lower in the ondansetron-dexamethasone group.
Keywords: Laparoscopy; metoclopramide; ondansetron; postoperative nausea and vomiting.
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