Continuous glucose monitoring in children with type 1 diabetes: before and after insulin pump therapy
Related Experiment Video
Updated: Aug 25, 2026

Improving IV Insulin Administration in a Community Hospital
Published on: June 11, 2012
Rubina A Heptulla1, Holley F Allen, Todd M Gross
1Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX 77030-2399, USA. raheptul@texaschildrenhospital.org
Insights
Continuous subcutaneous insulin infusion (CSII) therapy significantly improved glycemic control in children with type 1 diabetes mellitus (T1DM). Insulin pump use reduced HbA1c and postprandial glucose excursions, particularly after meals.
Area of Science:
- Pediatric Endocrinology
- Metabolic Disorders
- Diabetes Management
Background:
- Type 1 diabetes mellitus (T1DM) requires intensive management to mimic physiologic insulin secretion.
- Continuous subcutaneous insulin infusion (CSII) therapy aims to optimize glycemic control in T1DM patients.
- Understanding specific improvements from CSII is crucial for treatment efficacy.
Purpose of the Study:
- To evaluate the impact of CSII on glycemic control in pediatric T1DM patients.
- To identify specific times and parameters of glucose control that improve with insulin pump therapy.
- To assess the need for further adjustments in CSII therapy.
Main Methods:
- Eight pediatric patients (7.5-17 years) with T1DM participated.
- Continuous Glucose Monitoring System (CGMS) was used for 3 days before and 3 months after CSII initiation.
- Data collected included interstitial glucose, food intake, exercise, and hypoglycemia logs.
Main Results:
- Hemoglobin A1c (HbA1c) levels significantly decreased (p < 0.007) after 3 months of CSII.
- Hourly mean glucose levels improved over 24 hours (p < 0.001).
- Maximal postprandial glycemic excursions were significantly attenuated after meals (post-breakfast, -lunch, -dinner).
Conclusions:
- Insulin pump therapy (CSII) effectively improved glycemic control in children with T1DM.
- CSII specifically reduced postprandial glucose spikes, indicating better mealtime glucose management.
- Further research may focus on refining CSII parameters for even greater control.
Objective:
The aim of continuous subcutaneous insulin infusion (CSII) therapy in patients with type 1 diabetes mellitus (T1DM) is to mimic as closely as possible the normal physiologic pattern seen in individuals without diabetes. This study was undertaken to determine the specific areas of improved glycemic control in subjects after initiation of insulin pump therapy and times where further improvement is needed.
Research Design And Methods:
Eight patients with T1DM (age 7.5-17 yr) wore the Continuous Glucose Monitoring System (CGMS) (Medtronic MiniMed, Northridge, CA, USA) for 3 d before and 3 months after initiation of insulin pump therapy. The CGMS, which measures inter- stitial glucose concentrations every 5 min for a 72-h period, was used to evaluate glucose profiles. Patients entered 4-5 fingerstick blood glucose measurements daily into the sensor for calibration. Detailed logs of food intake, exercise, and hypoglycemic symptoms were also recorded.
Results:
Hemoglobin A1c (HbA1C) was reduced (p < 0.007) following 3 months of insulin pump therapy. Post-CSII continuous glucose profiles demonstrated an overall improvement in hourly mean glucose over a 24-h period (p < 0.001) as well as a reduction in the area under the curve for glucose (27 +/- 4 prepump vs. 8.6 +/- 1.4 mg/dL/d postpump, p < 0.004). This improvement was a result of an attenuation of the maximal postprandial glycemic excursions. Postbreakfast 349 +/- 24 vs. 267 +/- 16 mg/dL, p < 0.003; lunch 340 +/- 16 vs. 217 +/- 20 mg/dL, p < 0.003. Postdinner average similarly decreased after 3 months of CSII by 22%, p < 0.04.
Conclusions:
Pump therapy specifically improved the postprandial glucose excursions in children.
Related Concept Videos
Insulin: Dosing Regimen and Adverse Effects
The basal dose constitutes about 40%-50% of the total daily dose, with the rest as premeal insulin. The mealtime insulin dose should mirror...
Diabetes Mellitus: Type 2 and Gestational
Hypoglycemia and Glucagon
Diabetes Mellitus: Overview and Type I Subtype
Type 1 diabetes is an autoimmune disease in which the immune system mistakenly attacks and destroys the insulin-producing beta cells in the pancreas. As a result, the body is unable to produce sufficient insulin, and individuals with...
Hyperglycemia
Hormones Regulating Blood Glucose
In addition to accelerating glucose uptake and utilization, insulin has...