Hypotonic saline solutions have been used for over five decades to treat children with diarrheal dehydration. However, concern has recently been raised about the potential for iatrogenic hyponatremia as a result of this therapy. We reviewed the medical records of 531 otherwise healthy children with gastroenteritis who had been admitted to the hospital for intravenous fluid therapy. We retrospectively collected data on 141 of these children who had received two serum electrolytes (one upon admission and the other 4-24 h thereafter). The remaining 390 children were excluded because their charts lacked the required data. We analyzed data in 124 of these 141 patients whose initial serum sodium (Na) level was between 130-150 mEq/l and excluded 17 patients whose admission serum sodium fell outside this range. All patients were treated with intravenous hypotonic fluids (5% dextrose in 0.2% saline, n = 4; 5% dextrose in 0.3% saline, n = 102; 5% dextrose in 0.45% saline, n = 18 patients) as maintenance fluid therapy or maintenance fluid plus deficit therapy; 100 of these children had received an initial saline bolus of 21.05 +/- 8.5 ml/kg upon admission. The serum Na level decreased by 1.7 +/- 4.3 mEq/l in the whole group. Of the 97 children with isonatremia (Na 139.5 +/- 2.7 mEq/l) on admission, 18 (18.5%) developed mild hyponatremia (Na 133.4 +/- 0.9 mEq/l, range 131-134), with a decrease in serum Na of 5.7 +/- 3.1 mEq/l, and 79 remained isonatremic (Na 138.3 +/- 2.7 mEq/l), with a decrease in serum Na of 1.8 +/- 3.4 mEq/l (p < 0.0005). There was no significant difference in type, rate, or amount of intravenous fluid or saline bolus (26.1 +/- 10.4 vs. 20.2 +/- 8.6 ml/kg, respectively) administered in these two groups. Children who became hyponatremic were older (5.8 +/- 2.7 years) than those who remained isonatremic (2.8 +/- 3.1 years) (p < 0.0005), but there was no statistical difference in gender, degree of dehydration, and severity of metabolic acidosis between the two groups. Although serum Na increased by 3.9 +/- 2.5 mEq/l in 19 patients with mild hyponatremia upon admission (Na 132.8 +/- 1.3 to 136.7 +/- 2.6 mEq/l) and 73% of these became isonatremic, hypotonic saline solutions have the potential to cause hyponatremia in children with gastroenteritis and isonatremic dehydration.
We report an 8-month-old boy with systemic lupus erythematosus and World Health Organization class IV lupus nephritis who has gone into complete clinical and serological remission with pulse i.v. cyclophosphamide therapy. To our knowledge this is the first case of pulse i.v. cyclophosphamide therapy in infantile systemic lupus erythematosus resulting in long-term remission.
Oral hydration of diarrhoeal dehydration. Acta Paediatr Scand, 72:167, 1983.--Two groups of infants aged 2 to 20 months with moderate to severe dehydration were randomly assigned to either sucrose high sodium (90 mEq/l) or sucrose low sodium (58 mEq/l) solution in a double blind manner. Rehydration was assessed on clinical grounds and confirmed by serial determination of body weight, hematocrit, total serum protein and blood urea nitrogen. Twenty (80%) of 25 patients on sucrose high sodium solution and 20 (77%) of 26 patients on sucrose low sodium solution were successfully hydrated. Only the assigned sucrose-electrolyte solution was given during the average rehydration period of about 7 hours when the serum electrolytes were remeasured. Three patients on high sodium solution developed mild hypernatremia. Slight hyponatremia was encountered in 2 patients on low sodium solution. Purging rate was significantly higher in patients who failed as compared to those who succeeded. The results of this study suggest that oral sugar electrolyte solution with sodium concentration of 90 mEq/l is safe and effective in the majority of infants with diarrhoeal dehydration of diverse causes. However, intravenous fluids must be available particularly for those with a high purging rate as a significant number of them may fail.
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