Association Between Glycemia, Glycemic Variability, and Pregnancy Complications in Early GDM
Jincy Immanuel1,2, N Wah Cheung3, Mahta Mohajeri1
1Western Sydney University, Campbelltown, New South Wales, Australia.
Diabetes Care
|December 12, 2024
Summary
Early glucose management in gestational diabetes mellitus (GDM) improved overall glycemia and pregnancy outcomes. Delayed treatment showed similar late-pregnancy glucose levels but fewer optimal glycemic control rates.
Area of Science:
- Obstetrics and Gynecology
- Endocrinology
- Perinatal Medicine
Background:
- Gestational diabetes mellitus (GDM) requires timely management to optimize maternal and fetal health.
- Early diagnosis and intervention for GDM are crucial for preventing complications.
Purpose of the Study:
- To examine how the timing of initiating glucose management affects glycemia, glycemic variability, and pregnancy outcomes in women with early GDM.
- To compare immediate versus delayed treatment strategies for early GDM.
Main Methods:
- A substudy of a trial involving immediate vs. delayed treatment for early GDM (diagnosed by WHO 2013 criteria).
- Participants monitored blood glucose (BG) four times daily (fasting and 2-h postprandial).
- Optimal glycemia defined as ≥95% of BG measurements between 70-140 mg/dL.
Main Results:
- Early treatment (n=213) resulted in lower mean glucose (MG) and mean fasting glucose (MFG) compared to delayed treatment (n=116).
- Optimal glycemia was achieved more frequently in the early treatment group (74.6% vs. 59.5%).
- Overall optimal glycemia was associated with fewer large-for-gestational-age infants and lower gestational weight gain.
Conclusions:
- While late-pregnancy glycemia was similar between early and delayed treatment groups, early intervention improved overall glycemic control.
- Early GDM management is associated with better glycemic control and improved pregnancy outcomes.
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