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Meta-analysis: ondansetron for vomiting in acute gastroenteritis in children
H Szajewska1, D Gieruszczak-Białek, M Dylag
1The Second Department of Pediatrics, The Medical University of Warsaw, Warsaw, Poland. hania@ipgate.pl
Insights
Ondansetron may help stop vomiting in children with gastroenteritis shortly after administration and reduce the need for IV rehydration. However, evidence is insufficient to recommend its routine use in pediatric acute gastroenteritis.
Area of Science:
- Pediatric Gastroenterology
- Clinical Pharmacology
Background:
- Vomiting is a frequent symptom in pediatric acute gastroenteritis.
- Current treatment strategies for vomiting in children with gastroenteritis lack consensus.
Purpose of the Study:
- To evaluate the efficacy of ondansetron compared to placebo or no intervention for treating vomiting in children with acute gastroenteritis.
- To assess ondansetron's impact on rehydration needs, hospitalization, and emergency department visits.
Main Methods:
- A systematic review of randomized-controlled trials (RCTs) was conducted.
- Electronic databases including MEDLINE, EMBASE, CINAHL, and The Cochrane Library were searched through August 2006.
- Four RCTs involving 490 pediatric patients were included in the analysis.
Main Results:
- Ondansetron significantly increased short-term vomiting cessation (RR 1.3, 95% CI 1.2-1.5).
- The drug significantly reduced the need for intravenous rehydration (RR 0.4, 95% CI 0.3-0.7).
- No significant differences were observed in hospitalization rates or return emergency department visits.
Conclusions:
- Ondansetron demonstrates short-term benefits in reducing vomiting and the need for IV rehydration in children with acute gastroenteritis.
- Insufficient evidence currently supports the routine recommendation of ondansetron for this indication in pediatric patients.
Background:
Vomiting is a common sympton in children with gastroenteritis, but its treatment remains controversial.
Aim:
To investigate potential beneficial effects of ondansetron, compared with placebo or no intervention, in treating vomiting during acute gastroenteritis in children.
Methods:
The following electronic databases were searched through August 2006: MEDLINE, EMBASE, CINAHL and The Cochrane Library; additional references were obtained from reviewed articles. Only randomized-controlled trials (RCTs) were included.
Results:
Four RCTs involving 490 patients with vomiting during acute gastroenteritis were included. Combined data from three RCTs (n = 466) showed that ondansetron compared with the control significantly increased the chance for vomiting cessation soon after drug administration [relative risk (RR): 1.3, 95% confidence interval (CI): 1.2-1.5, number needed to treat (NNT): 5, 95% CI: 4-8], but this effect was not observed at 24 h (three RCTs, n = 144, RR 1.2, 95% CI: 0.9-1.7). Ondansetron significantly reduced the risk of intravenous rehydration (two RCTs, n = 359, RR 0.4, 95% CI: 0.3-0.7, NNT 7, 95% CI: 5-14). Outcome measures not significantly different after ondansetron treatment were the need for hospitalization and return emergency department visits.
Conclusions:
Despite some clinical benefits, there is insufficient evidence to recommend the routine use of ondansetron for vomiting during acute gastroenteritis in children.
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