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[Oral hydratation with a low osmolality solution in dehydrated children with diarrheic diseases: controlled clinical

Carlos Bernal1, Claudia Velásquez, Guillermo García

  • 1Departamento de Pediatría y Puericultura, Universidad de Antioquia, Medellín, Colombia. cabp@epm.net.co

Biomedica : Revista Del Instituto Nacional De Salud
|April 17, 2003
PubMed

Insights

A low-osmolarity oral rehydration solution (ORS) proved effective in treating dehydrated children. This ORS reduced the need for intravenous fluids and corrected sodium imbalances without causing hyponatremia.

Area of Science:

  • Pediatrics
  • Gastroenterology
  • Clinical Nutrition

Background:

  • Diarrhea remains a leading cause of dehydration in children globally.
  • Standard oral rehydration solutions (ORS) recommended by the World Health Organization (WHO) are effective but can sometimes lead to electrolyte imbalances.
  • Optimizing ORS composition is crucial for improving treatment outcomes in pediatric dehydration.

Purpose of the Study:

  • To compare the efficacy of a low-osmolarity ORS with the standard WHO-ORS in treating children with dehydration due to diarrhea.
  • To evaluate differences in rehydration success rates, duration, stool output, and electrolyte balance between the two ORS formulations.
  • To assess the incidence of intravenous fluid requirement and hyponatremia in children receiving either ORS type.

Main Methods:

  • A clinical trial involving two groups of children with diarrhea-induced dehydration.
  • Group 1 received standard WHO-ORS (311 mOsm/L), while Group 2 received a low-osmolarity ORS (245 mOsm/L).
  • Key outcomes measured included rehydration success, time to rehydration, stool output, serum sodium levels, and need for intravenous therapy.

Main Results:

  • Rehydration success rates were high in both groups (88.4% for WHO-ORS vs. 92.9% for low-osmolarity ORS), with no statistically significant difference (p = 0.35).
  • The low-osmolarity ORS group showed a significantly lower requirement for intravenous solutions (9.8% vs. 23.1%, p = 0.03).
  • Serum sodium levels at rehydration completion were significantly lower in the low-osmolarity ORS group (136.7 mEq/L vs. 139.3 mEq/L, p = 0.014), indicating better correction of hypernatremia without inducing hyponatremia.

Conclusions:

  • Low-osmolarity ORS is a safe and effective alternative for treating pediatric dehydration caused by diarrhea.
  • This formulation significantly reduces the need for intravenous fluid administration compared to standard WHO-ORS.
  • Low-osmolarity ORS effectively corrects sodium imbalances in dehydrated children, posing no risk of hyponatremia.

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