Journal of UOEH
Online ISSN : 2187-2864
Print ISSN : 0387-821X
ISSN-L : 0387-821X
Association Between Diabetic Microangiopathies and Glycemic Variability Assessed by Continuous Glucose Monitoring
Satomi SONODAYosuke OKADAHiroko MORIFumi UEMURAKei SUGAIMaiko HAJIMEKenichi TANAKAAkira KUROZUMIManabu NARISAWAKeiichi TORIMOTOYoshiya TANAKA
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2018 Volume 40 Issue 1 Pages 11-18

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Abstract

The aim of this retrospective study was to elucidate the association between glucose profile using the continuous glucose monitoring system (CGMS) and microvascular complications in patients with type 2 diabetes mellitus (T2DM). The subjects were 160 inpatients with T2DM. The mean blood glucose (MBG) level, percentage of time in a 24-hour period spent with blood glucose level higher than 180 mg/dl (time at >180 mg/dl), standard deviation (SD), and mean amplitude of glycemic excursions (MAGE) were measured continuously over 48 hours using the CGMS. The primary outcome was the association between microvascular complications and glycemic variability. The secondary outcome was the association between microangiopathies and MBG. The SD and MAGE were not associated with presence of microangiopathies or number of complications. There were also no associations between abnormal vibratory sensation in the bilateral lower extremities, coefficient of variation of the R-R interval (CVRR), retinopathy stage, nephropathy stage, or microalbuminuria. MBG was associated, however, with retinopathy, retinopathy stage, and number of complications. Time at >180 mg/dl correlated with abnormal vibratory sensation in the bilateral lower extremities and presence or stage of retinopathy. MBG and time at >180 mg/dl were not associated with presence or stage of nephropathy. Our findings suggest that broad glycemic variability was not associated with microvascular complications, the number of which increased in patients with a high mean glucose level and long time spent with hyperglycemia. It is important, therefore, to reduce the mean glucose level and time spent with hyperglycemia to prevent future microangiopathies.

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© 2018 The University of Occupational and Environmental Health, Japan
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