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J Pediatr. 2010 Nov;157(5):784-8.e1. doi: 10.1016/j.jpeds.2010.06.004. Epub 2010 Jul 21.

Preventing post-exercise nocturnal hypoglycemia in children with type 1 diabetes.

Author information

  • 1University of Colorado, Barbara Davis Center for Childhood Diabetes, Aurora, CO 80045, USA.

Abstract

OBJECTIVE:

To determine the effects of reducing overnight basal insulin or a bedtime dose of terbutaline on nocturnal blood glucose (BG) nadir and hypoglycemia after exercise in children with type 1 diabetes mellitus.

STUDY DESIGN:

Sixteen youth (mean age 13.3 years) on insulin pumps were studied overnight on 3 occasions after a 60-minute exercise session with BG measurements every 30 minutes. Admissions were randomized to bedtime treatment with oral terbutaline 2.5 mg, 20% basal rate insulin reduction for 6 hours, or no treatment.

RESULTS:

Mean overnight nadir BG was 188 mg/dL after terbutaline and 172 mg/dL with basal rate reduction compared with 127 mg/dL on the control night (P = .002 and .042, respectively). Terbutaline eliminated nocturnal hypoglycemia but resulted in significantly more hyperglycemia (≥250 mg/dL) when compared with the control visit (P < .0001). The basal rate reduction resulted in fewer BG readings <80 and <70 mg/dL but more readings ≥250 mg/dL when compared with the control visit.

CONCLUSIONS:

A basal insulin rate reduction was safe and effective in raising post-exercise nocturnal BG nadir and in reducing hypoglycemia in children with type 1 diabetes mellitus. Although effective at preventing hypoglycemia, a 2.5-mg dose of terbutaline was associated with hyperglycemia.

Copyright © 2010 Mosby, Inc. All rights reserved.

Comment in

PMID:
20650471
[PubMed - indexed for MEDLINE]
PMCID:
PMC2957531
Free PMC Article

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