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Metabolic Control of the FreeStyle Libre System in the Pediatric Population with Type 1 Diabetes Dependent on Sensor
Isabel Leiva-Gea1,2,3, Maria F Martos-Lirio1,3, Ana Gómez-Perea1
1Pediatric Endocrinology, Hospital Regional Materno Infantil de Málaga, 29011 Malaga, Spain.
Aims:
To evaluate the relationship between daily sensor scan rates and changes in HbA1c and hypoglycemia in children.
Methods:
We enrolled 145 paediatric T1D patients into a prospective, interventional study of the impact of the FreeStyle Libre 1 system on measures of glycemic control.
Results:
HbA1c was higher at lower scan rates, and decreased as the scan rate increased to 15-20 scans, after which it rose at higher scan rates. An analysis of the change in hypoglycemia, based on the number of daily sensor scans, showed there was a significant correlation between daily scan rates and hypoglycemia. Subjects with higher daily scan rates reduced all levels of hypoglycaemia.
Conclusions:
HbA1c is higher at lower scan rates, and decreases as scan rate increases. Reductions in hypoglycemia were evident in subjects with higher daily scan rates.
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