Timing of Bolus in Children with Type 1 Diabetes Using Continuous Subcutaneous Insulin Infusion (TiBoDi Study)
- 1 February 2010
- journal article
- research article
- Published by Mary Ann Liebert Inc in Diabetes Technology & Therapeutics
- Vol. 12 (2), 149-152
- https://doi.org/10.1089/dia.2009.0117
Abstract
Background: Continuous subcutaneous insulin infusion is considered a safe and effective way to administer insulin in pediatric patients with type 1 diabetes, but achieving satisfactory and stable glycemic control is difficult. Several factors contribute to control, including fine-tuning the basal infusion rate and bolus timing. We evaluated the most effective timing of a pump-delivered, preprandial bolus in children with type 1 diabetes. Methods: We assessed the response of 30 children with type 1 diabetes to a standard meal after different timing of a bolus dose. Results: The glucose levels for 3 h after the meal were lower (i.e., closer to the therapeutic target of P = 0.044); and just before meal, 130 ± 54 mg/dL (7.22 ± 3.00 mmol/L) (P = 0.024). The area under the curve (AUC) (in mg/min) did not differ significantly with different bolus times, but the SD of the AUC was the lowest with the bolus given 15 min before the meal. Conclusions: These data support injection of the bolus before, rather than after, eating, even if the patient is hypoglycemic before meals.Keywords
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