Related Experiment Videos
Nitrous oxide does not increase vomiting in children after myringotomy
W M Splinter1, D J Roberts, E J Rhine
1Department of Anaesthesia, Children's Hospital of Eastern Ontario, Ottawa, Canada.
Summary
Nitrous oxide (N2O) did not significantly increase postoperative vomiting in children undergoing myringotomy. Age was a key factor, with older children experiencing more vomiting, regardless of N2O use.
Area of Science:
- Anesthesiology
- Pediatric Surgery
Background:
- Postoperative vomiting is a common concern in pediatric surgical patients.
- Nitrous oxide (N2O) is frequently used in general anesthesia and its emetogenic potential in children is debated.
Purpose of the Study:
- To determine if nitrous oxide (N2O) administration during general anesthesia impacts the incidence of postoperative vomiting in children undergoing myringotomy.
Main Methods:
- A randomized controlled trial involving 320 healthy children (0.5-13 years) undergoing myringotomy.
- Anesthesia was induced and maintained with either 70% N2O/30% O2/halothane or 100% O2/halothane.
- Vomiting incidence was recorded in the recovery room, day care unit, and via parental follow-up 24-48 hours post-discharge.
Main Results:
- The overall incidence of postoperative vomiting was 13% in both the N2O and control groups.
- Vomiting incidence increased significantly with age, ranging from 4% in children under 3 to 31% in those aged 9-13.
- N2O administration did not alter the incidence of vomiting, nor was it influenced by sex or anesthesia duration.
Conclusions:
- Nitrous oxide does not appear to induce clinically significant postoperative vomiting in children after myringotomy.
- Age is a significant predictor of postoperative vomiting in this pediatric surgical population.
- Further research may explore other factors influencing postoperative nausea and vomiting in children.