Suboptimal Nocturnal Glucose Control Is Associated With Large for Gestational Age in Treated Gestational Diabetes Mellitus

Continuous glucose monitoring (CGM) provides far greater detail about fetal exposure to maternal glucose across the 24-h day. Our aim was to examine the role of temporal glucose variation on the development of large for gestational age (LGA) infants in women with treated gestational diabetes mellitu...

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Veröffentlicht in:Diabetes care 2019-05, Vol.42 (5), p.810-815
Hauptverfasser: Law, Graham R, Alnaji, Alia, Alrefaii, Lina, Endersby, Del, Cartland, Sarah J, Gilbey, Stephen G, Jennings, Paul E, Murphy, Helen R, Scott, Eleanor M
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container_end_page 815
container_issue 5
container_start_page 810
container_title Diabetes care
container_volume 42
creator Law, Graham R
Alnaji, Alia
Alrefaii, Lina
Endersby, Del
Cartland, Sarah J
Gilbey, Stephen G
Jennings, Paul E
Murphy, Helen R
Scott, Eleanor M
description Continuous glucose monitoring (CGM) provides far greater detail about fetal exposure to maternal glucose across the 24-h day. Our aim was to examine the role of temporal glucose variation on the development of large for gestational age (LGA) infants in women with treated gestational diabetes mellitus (GDM). We performed a prospective observational study of 162 pregnant women with GDM in specialist multidisciplinary antenatal diabetes clinics. Participants undertook 7-day masked CGM at 30-32 weeks' gestation. Standard summary indices and glycemic variability measures of CGM were calculated. Functional data analysis was applied to determine differences in temporal glucose profiles. LGA was defined as birth weight ≥90th percentile adjusted for infant sex, gestational age, maternal BMI, ethnicity, and parity. Mean glucose was significantly higher in women who delivered an LGA infant (6.2 vs. 5.8 mmol/L, = 0.025, or 111.6 mg/dL vs. 104.4 mg/dL). There were no significant differences in percentage time in, above, or below the target glucose range or in glucose variability measures (all > 0.05). Functional data analysis revealed that the higher mean glucose was driven by a significantly higher glucose for 6 h overnight (0030-0630 h) in mothers of LGA infants (6.0 ± 1.0 mmol/L vs. 5.5 ± 0.8 mmol/L, = 0.005, and 108.0 ± 18.0 mg/dL vs. 99.0 ± 14.4 mg/dL). Mothers of LGA infants run significantly higher glucose overnight compared with mothers without LGA infants. Detecting and addressing nocturnal glucose control may help to further reduce rates of LGA in women with GDM.
doi_str_mv 10.2337/dc18-2212
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Our aim was to examine the role of temporal glucose variation on the development of large for gestational age (LGA) infants in women with treated gestational diabetes mellitus (GDM). We performed a prospective observational study of 162 pregnant women with GDM in specialist multidisciplinary antenatal diabetes clinics. Participants undertook 7-day masked CGM at 30-32 weeks' gestation. Standard summary indices and glycemic variability measures of CGM were calculated. Functional data analysis was applied to determine differences in temporal glucose profiles. LGA was defined as birth weight ≥90th percentile adjusted for infant sex, gestational age, maternal BMI, ethnicity, and parity. Mean glucose was significantly higher in women who delivered an LGA infant (6.2 vs. 5.8 mmol/L, = 0.025, or 111.6 mg/dL vs. 104.4 mg/dL). There were no significant differences in percentage time in, above, or below the target glucose range or in glucose variability measures (all &gt; 0.05). 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source MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals
subjects Adolescent
Adult
Age
Birth weight
Birth Weight - physiology
Blood Glucose - metabolism
Blood Glucose Self-Monitoring
Body mass
Circadian Rhythm - physiology
Data analysis
Diabetes
Diabetes mellitus
Diabetes, Gestational - blood
Diabetes, Gestational - diagnosis
Diabetes, Gestational - epidemiology
Diabetes, Gestational - therapy
Disease control
Female
Fetal Macrosomia - blood
Fetal Macrosomia - epidemiology
Fetal Macrosomia - etiology
Fetuses
Gestation
Gestational Age
Gestational diabetes
Glucose
Glucose monitoring
Glucose Tolerance Test
Humans
Infant
Infant, Newborn
Infants
Male
Maternal & child health
Middle Aged
Minority & ethnic groups
Pregnancy
Prenatal exposure
Prospective Studies
Research design
Variability
Young Adult
title Suboptimal Nocturnal Glucose Control Is Associated With Large for Gestational Age in Treated Gestational Diabetes Mellitus
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