Continuous glucose monitoring in children with type 1 diabetes: Before and after insulin pump therapy

Rubina A. Heptulla, Holley F. Allen, Todd M. Gross, Edward O. Reiter

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


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 interstitial 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.

Original languageEnglish (US)
Pages (from-to)10-15
Number of pages6
JournalPediatric Diabetes
Issue number1
StatePublished - Mar 2004
Externally publishedYes


  • Blood glucose selfmonitoring
  • Diabetes mellitus
  • Hyperglycemia
  • Hypoglycemia
  • Infusion systems
  • Insulin
  • Insulin-dependent diabetes

ASJC Scopus subject areas

  • Internal Medicine
  • Pediatrics, Perinatology, and Child Health
  • Endocrinology, Diabetes and Metabolism


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