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Low-dose continuous intravenous insulin infusion in childhood diabetic ketoacidosis
Insights
Low-dose intravenous insulin infusion is as effective as high-dose subcutaneous injections for treating diabetic ketoacidosis in children. This method reduces risks of hypoglycemia and hypokalemia, enhancing patient safety.
Area of Science:
- Pediatrics
- Endocrinology
- Metabolic Disorders
Background:
- Diabetic ketoacidosis (DKA) is a serious complication of diabetes mellitus.
- Current treatment protocols for DKA in children vary, with different insulin administration methods employed.
- Optimizing insulin therapy is crucial for effective DKA management and minimizing adverse events.
Purpose of the Study:
- To compare the efficacy and safety of low-dose continuous intravenous insulin infusion versus high-dose intermittent subcutaneous insulin injections in pediatric DKA.
- To evaluate metabolic correction rates, incidence of hypoglycemia, and hypokalemia between the two treatment groups.
Main Methods:
- A randomized, prospective study involving 58 children diagnosed with diabetic ketoacidosis.
- Patients were assigned to receive either low-dose continuous intravenous insulin infusion or high-dose intermittent subcutaneous insulin injections.
- Key parameters monitored included admission pH, glucose levels, insulin levels, and time to metabolic correction.
Main Results:
- No significant differences were observed in admission pH, glucose levels, or time to metabolic correction between the groups.
- The incidence of hypoglycemia and hypokalemia was notably higher in the high-dose subcutaneous insulin group.
- Lower total insulin dosage (1.6 U/kg vs. 4.5 U/kg) was required for metabolic recovery with the low-dose intravenous method (p < 0.01).
Conclusions:
- Low-dose intravenous insulin infusion is a safe and effective alternative to high-dose subcutaneous injections for pediatric DKA.
- Intravenous insulin therapy in DKA offers reduced risks of hypoglycemia and hypokalemia.
- Individualized patient care remains paramount regardless of the chosen insulin administration method.
Abstract:
We studied 58 children with diabetic ketoacidosis using a random, prospective protocol, with insulin administered either as a low-dose continuous infusion or as high-dose intermittent subcutaneous injections. There were no statistically significant differences between admission pH and glucose determinations or the time to metabolic correction. The incidence of hypoglycemia and hypokalemia was higher in patients receiving subcutaneous insulin. Insulin levels in the low-dose patients were 85--160 microU/ml. The insulin required to achieve metabolic recovery was 1.6 U/kg in the low-dose group and 4.5 U/kg in the high-dose group (p less than 0.01). Glucose administered at a rate of 3 to 4 g er unit of insulin infused in the low-dose group maintained a serum glucose of 150 to 250 mg/dl. Our studies suggest that low-dose intravenous insulin therapy is safe, as effective as high-dose intermittent subcutaneous injections and avoids the risks of hypoglycemia and hypokalemia. Meticulous attention to individual patient care, however, must remain the most important single variable.