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Published on: June 11, 2012
Continuous glucose monitoring in insulin pump treated children
Emilio García-García1, Raúl Sánchez-Pérez, Rafael Galera
1Unidad de Endocrinología Pediátrica. Complejo Hospitalario Torrecárdenas. Almería. España.
Insights
Continuous glucose monitoring in children with type 1 diabetes on insulin pumps showed irregular glucose levels and frequent hyperglycemia. The continuous glucose monitoring system (CGMS) was generally well tolerated, preserving hypoglycemia symptoms.
Area of Science:
- Pediatric Endocrinology
- Diabetes Technology
- Metabolic Disorders
Background:
- Insulin pump therapy is a key strategy for managing type 1 diabetes (T1D) in children and adolescents.
- The goal of insulin pump therapy is to optimize glycemic control and minimize hypoglycemia.
- Continuous glucose monitoring systems (CGMS) offer detailed insights into glucose fluctuations.
Purpose of the Study:
- To evaluate interstitial glucose levels in pediatric T1D patients using insulin pumps.
- To assess the frequency, duration, and symptoms of hypo- and hyperglycemia via CGMS.
- To determine the tolerability of CGMS in this patient population.
Main Methods:
- A cohort of thirteen children and adolescents with T1D on insulin pump therapy was studied.
- Continuous glucose monitoring (CGMS) was employed for 72 hours to track interstitial glucose.
- Patient demographics included age, diabetes duration, pump therapy duration, insulin dosage, and HbA1c levels.
Main Results:
- Interstitial glucose concentrations averaged 187±40 mg/dl, indicating suboptimal glycemic control.
- Hyperglycemia (above 180 mg/dl) was present for 47.3%±17.4% of the time.
- Hypoglycemia (below 70 mg/dl) occurred 3.6%±5.6% of the time, with preserved adrenergic symptoms.
Conclusions:
- Children and adolescents with T1D on insulin pumps exhibit irregular interstitial glucose levels and do not achieve normoglycemia.
- Adrenergic symptoms of hypoglycemia remain intact in this population.
- The CGMS was generally well tolerated by the pediatric patients, with one exception.
Introduction:
Insulin pump therapy aims to improve glycemic control and decrease the risk of hypoglycemia in type 1 diabetes.
Objective:
To evaluate interstitial glucose levels and the frequency, duration and symptoms of hypo- and hyperglycemia through the use of a continuous glucose monitoring system (GGMS) in children and adolescents with insulin pump-treated type 1 diabetes, and to determine whether this monitoring method is well tolerated by these patients.
Patients And Method:
Thirteen patients (4 boys) with insulin pump-treated type 1 diabetes mellitus were monitored. Age was 10.6±3.5 (range, 3.2-13.6) years, diabetes duration was 5.0±3.2 years, pump therapy duration was 12.0±4.6 months, insulin dose was 0.99 ± 0.19 U/kg/day, and last hemoglobin A1c level was 7.1% ± 0.8%. The Minimed CGMS was used for 72 hours.
Results:
A 3-year-old preschool child did not tolerate the CGMS. Interstitial glucose concentration was 187±40 mg/dl. Hypoglycemia (below 70mg/dl) accounted for 3.6% ± 5.6% of total time, while hyperglycemia (above 180 mg/dl) occurred 47.3% ± 17.4% of the time. No asymptomatic hypoglycemia episodes were detected.
Conclusions:
Insulin pump-treated children and adolescents showed an irregular interstitial glucose level and did not achieve normoglycemia. In our patients, adrenergic symptoms of hypoglycemia were preserved and the CGMS was generally well tolerated.
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