Annals of emergency medicine
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Randomized Controlled Trial
Oral Ondansetron to Reduce Vomiting in Children Receiving Intranasal Fentanyl and Inhaled Nitrous Oxide for Procedural Sedation and Analgesia: A Randomized Controlled Trial.
Intranasal fentanyl and inhaled nitrous oxide are increasingly combined to provide procedural sedation and analgesia in the pediatric emergency setting. This regimen is attractive because of its nonparenteral administration, but is associated with a higher incidence of vomiting than nitrous oxide alone. We seek to assess whether prophylactic oral ondansetron use could reduce the incidence of vomiting associated with intranasal fentanyl and nitrous oxide for procedural sedation compared with placebo. ⋯ Oral ondansetron does not significantly reduce vomiting during or shortly after procedural sedation with combined intranasal fentanyl and inhaled nitrous oxide.