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Reduced osmolarity oral rehydration solution for treating dehydration due to diarrhoea in children: systematic review
1Medical and Pharmaceutical Statistics Research Unit, University of Reading, Reading RG6 6FN. s.hahn@rdg.ac.uk
Insights
Reduced osmolarity oral rehydration solution (ORS) is more effective than standard WHO-ORS for children with diarrhea. It reduces intravenous infusions, stool output, and vomiting, improving hydration management.
Area of Science:
- Pediatrics
- Gastroenterology
- Public Health
Background:
- Acute diarrhea is a leading cause of dehydration in children.
- Standard World Health Organization (WHO) oral rehydration solution (ORS) is widely used but may have limitations.
- Optimizing ORS composition is crucial for effective rehydration therapy.
Purpose of the Study:
- To compare the efficacy of reduced osmolarity ORS versus standard WHO-ORS in pediatric patients.
- To evaluate the impact on unscheduled intravenous fluid administration.
- To assess effects on stool output, vomiting, and hyponatremia.
Main Methods:
- Systematic review and meta-analysis of 15 randomized controlled trials.
- Inclusion of 2397 pediatric patients with acute diarrhea.
- Analysis of primary outcome (unscheduled intravenous infusion) and secondary outcomes (stool output, vomiting, hyponatremia).
Main Results:
- Reduced osmolarity ORS significantly decreased the need for unscheduled intravenous infusions (OR 0.61).
- Lower stool output (SMD -0.214) and less frequent vomiting (OR 0.71) were observed with reduced osmolarity ORS.
- No significant difference in hyponatremia incidence between the two ORS groups.
Conclusions:
- Reduced osmolarity ORS is associated with fewer unscheduled intravenous infusions in hospitalized children with diarrhea-associated dehydration.
- This ORS formulation also leads to reduced stool volume and less vomiting.
- Reduced osmolarity ORS offers a more effective alternative to standard WHO-ORS for pediatric rehydration.
Objectives:
To compare reduced osmolarity oral rehydration solution with standard World Health Organization oral rehydration solution in children with acute diarrhoea.
Design:
Systematic review of randomised controlled trials.
Studies:
15 randomised controlled trials including 2397 randomised patients.
Outcomes:
The primary outcome was unscheduled intravenous infusion; secondary outcomes were stool output, vomiting, and hyponatraemia.
Results:
In a meta-analysis of nine trials for the primary outcome, reduced osmolarity rehydration solution was associated with fewer unscheduled intravenous infusions compared with standard WHO rehydration solution (odds ratio 0.61, 95% confidence interval 0.47 to 0.81). Three trials reported that no patients required unscheduled intravenous infusion. Trials reporting secondary outcomes suggested that in the reduced osmolarity rehydration solution group, stool output was lower (standardised mean difference in the log scale -0.214 (95% confidence interval -0.305 to -0.123; 13 trials) and vomiting was less frequent (odds ratio 0.71, 0.55 to 0.92; six trials). Six trials sought presence of hyponatraemia, with events in three studies, but no significant difference between the two arms.
Conclusion:
In children admitted to hospital with dehydration associated with diarrhoea, reduced osmolarity rehydration solution is associated with reduced need for unscheduled intravenous infusions, lower stool volume, and less vomiting compared with standard WHO rehydration solution.