A new study has shown that despite excellent glycemic control and low glycemic variability throughout their pregnancies, women with type 1 diabetes tended to give birth to infants who were large for gestational age. Researchers documented elevated fetal weight and abdominal circumference percentages throughout the pregnancies that were consistent with accelerated prenatal growth, as documented in Diabetes Technology & Therapeutics (DTT).
Florence Brown, MD, Harvard T.H. Chan School of Public Health, Joslin Diabetes Center, and Harvard Medical School, and coauthors from these institutions and Beth Israel Deaconess Medical Center, Boston, MA, used continuous glucose monitoring (CGM) to determine glycemic variability over a 7-day period in each trimester of the women’s pregnancies. In the article entitled “Continuous Glucose Monitoring, Glycemic Variability, and Excessive Fetal Growth in Pregnancies Complicated by Type 1 Diabetes” the researchers reported mean HbA1c of 6.5%, 6.1%, and 6.4% during the first, second, and third trimester, respectively.
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