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Do high blood glucose peaks contribute to higher HbA1c? Results from repeated continuous glucose measurements in children
Linköping University, Faculty of Health Sciences. Linköping University, Department of Clinical and Experimental Medicine, Pediatrics . Östergötlands Läns Landsting, Centre of Paediatrics and Gynecology and Obstetrics, Department of Paediatrics in Linköping.
Barnkliniken NÄL, Uddevalla.
Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Health Sciences, Pharmacology .ORCID iD: 0000-0003-3184-0427
Linköping University, Faculty of Health Sciences. Linköping University, Department of Clinical and Experimental Medicine, Pediatrics . Östergötlands Läns Landsting, Centre of Paediatrics and Gynecology and Obstetrics, Department of Paediatrics in Linköping.
2008 (English)In: World Journal of Pediatrics, ISSN 1708-8569, Vol. 4, no 3, 215-221 p.Article in journal (Refereed) Published
Abstract [en]

Background: HbA1c levels are infl uenced by the glycemic control of previous 2-3 months. Sometimes patients have surprisingly low HbA1c in spite of many correctly measured high blood glucose values, which is diffi cult to explain. As glucose sensors give an objective picture based on glucose readings several times per minute over 24 hours, we used the area under the curve (AUC) of such subcutaneous glucose profi les to evaluate their relationship with HbA1c. Methods: Thirty-two patients were randomized into two study arms, one open and the other blinded. Both arms had 8 pump users and 8 patients with multiple daily injections (MDI). After three months the two arms crossed over. Both study arms wore a continuous glucose monitoring system (CGMS) for 3 days every 2 weeks. HbA1c was determined before and after each 3-month study period. Results: There was no relationship between HbA1c and s.c. glucose AUC or between HbA1c and the number of peaks >15.0 mmol/L when all CGMS profi les during the 6 months were taken together. Children on MDI showed a positive relationship between HbA1c and AUC (P<0.01) as well as the number of peaks (P<0.01). Children with a negative relationship between HbA1c and AUC generally had fewer fluctuations in blood glucose values, whereas children with a positive relationship had wide fluctuations. Conclusions: Although there was no relationship between s.c. glucose AUC and HbA1c, the results indicate that wide blood glucose fluctuations may be related to high HbA1c values. Therefore, complications and therapeutic interventions should aim at reducing such fluctuations. © Springer 2008.

Place, publisher, year, edition, pages
2008. Vol. 4, no 3, 215-221 p.
Keyword [en]
blood glucose, diabetes, HbA1c, multiple daily injections
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-42863DOI: 10.1007/s12519-008-0040-8Local ID: 69579OAI: oai:DiVA.org:liu-42863DiVA: diva2:263720
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2013-09-03

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Samuelsson, UlfWhiss, PerLudvigsson, Johnny

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