Beneficial Recognition of Glucose Variability for Adequate Lifestyle by Continuous Glucose Monitoring (CGM)

Abstract

Recently, actual changes in blood glucose can be measured by continuous glucose monitoring (CGM) using FreeStyle Libre. The case involves a 67-year-old male patient with type 2 diabetes (T2D) treated with Multiple Daily Insulin (MDI) therapy, who underwent CGM. Analysis of the CGM data revealed that hyperglycemia resulted from increased carbohydrate intake and irregular meal timings and quantities. The estimated HbA1c from CGM was 6.6%, whereas the HbA1c value recorded at the outpatient clinic during the same period was 7.3%. The use of CGM applications encourages diabetic patients to be mindful of their carbohydrate intake in daily life, leading to an increased ratio of time spent in the target range (TIR).