Gestational diabetes complicated with preterm birth: a retrospective cohort study

Area of Science:

• Obstetrics and Gynecology
• Maternal-Fetal Medicine
• Endocrinology

Background:

• Gestational diabetes mellitus (GDM) is a significant risk factor for adverse pregnancy outcomes.
• Preterm birth (PTB) remains a leading cause of neonatal morbidity and mortality.
• Understanding the specific clinical characteristics of PTB in women with GDM is essential for targeted interventions.

Purpose of the Study:

• To delineate the clinical characteristics of preterm birth (PTB) in the context of gestational diabetes mellitus (GDM).
• To identify risk factors and clinical markers associated with early versus late PTB in GDM pregnancies.

Main Methods:

• Retrospective cohort study of 14,314 pregnant women with GDM.
• PTB stratified into early (<34 weeks) and late (34-36 weeks) gestation.
• Analysis of pregnancy complications, lipid profiles, and inflammatory markers.

Main Results:

• PTB cohort showed higher rates of premature rupture of membranes, hypertensive diseases of pregnancy (HDP), intrahepatic cholestasis of pregnancy (ICP), anemia, and cervical insufficiency compared to term births.
• Early PTB was associated with increased incidence of HDP, ICP, anemia, and cervical insufficiency compared to late PTB.
• Early PTB demonstrated altered lipid profiles (elevated triglycerides, decreased HDL-C) and inflammatory markers (increased WBC, neutrophils) in early and late pregnancy stages, respectively.

Conclusions:

• Enhanced surveillance and management of GDM, particularly for those with HDP, ICP, and anemia, are critical to reduce PTB risk.
• Lipid profiles in early pregnancy may predict early PTB in GDM patients.
• Further research is warranted to validate lipid profiles as predictive tools for early PTB.