RESUMO
A common and distressing adverse effect following general anesthesia is nausea and vomiting. Pediatric ophthalmic surgery is associated with a high (50%-80%) incidence of postoperative emesis. Vomiting postoperatively may cause a prolonged hospital stay, and if it is persistent, may lead to unanticipated hospital admission after ambulatory surgery. The purpose of the present study was to compare the effectiveness of prophylactic antiemetic treatment with ondansetron, metoclopramide, and placebo in a study population of pediatric patients scheduled to undergo ophthalmic surgery. One hundred and one patients were included in this double-blinded study. The incidence of emesis and adverse effects were observed in the postanesthesia care unit and documented for 24 hours postoperatively. Analysis of variance showed that ondansetron significantly decreased (P = .05) the incidence of emesis in the postanesthesia care unit and during the first 24 hours postoperatively (P = .049). Additionally, parents of children in the ondansetron group reported a high degree (94%) of satisfaction with the experience.