RESUMO
The aim of this study is to explore the effect of supplemental pro-operative fluids on the incidence of nausea and vomiting that occur post-operatively. We studied sixty patients, ASA I-II, undergoing laparoscopic cholecystectomy. Patients were randomly divided into groups A and B; group A [n=30 patients] received no intravenous fluids pro-operatively, whereas group B [n=30 patients] received supplemental fluids [10ml/kg of lactated Ringer's solution] one hour before induction of anaesthesia. During the first twenty four hours post-operatively, nausea and vomiting occurred in 21 patients [70%] from group A and only in 8 patients [27%] from group B [supplemental fluid group]. Post-operative nausea and vomiting can be reduced by the use of pre-operative supplemental lactated Ringer's solution, which is a cheap and safe therapy