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Continuous Glucose Monitoring for Prediabetes: Roles, Evidence, and Gaps
Salwa J Zahalka1, Halis K Akturk2, Rodolfo J Galindo3
1Division of Endocrinology, Metabolism, and Diabetes, Department of Medicine, University of Colorado Anschutz Medical Campus School of Medicine, Aurora, Colorado.
Abstract:
Continuous glucose monitoring (CGM) has transformed the care of patients with diabetes, and there is great potential to extend these benefits to prediabetes. The recent US Food and Drug Administration approval of over-the-counter CGMs has increased interest for use in individuals with prediabetes. It is of particular interest to use CGM to guide early individualized lifestyle interventions to prevent the progression of prediabetes to diabetes and support reversion to normoglycemia. In this review, we discuss published evidence regarding CGM metrics in normoglycemia, briefly review the use of CGM to diagnose prediabetes, and review available evidence for CGM use during lifestyle interventions in individuals with prediabetes. Future studies are needed to validate CGM metrics for prediabetes and evaluate effects of early intervention with CGM in this population.
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