Implications of sleep-disordered breathing in pregnancy

Area of Science:

• Obstetrics and Gynecology
• Sleep Medicine
• Perinatal Health

Background:

• Sleep-disordered breathing (SDB) affects a significant portion of pregnant women, particularly those with risk factors.
• The impact of SDB on various adverse pregnancy outcomes requires further investigation.

Purpose of the Study:

• To investigate the association between sleep-disordered breathing (SDB) and adverse pregnancy outcomes in a high-risk cohort.
• To determine if SDB severity correlates with specific pregnancy complications.

Main Methods:

• Prospective cohort study of high-risk pregnant women (BMI ≥30, chronic hypertension, diabetes, prior preeclampsia, twin gestation).
• Objective assessment of SDB using apnea-hypopnea index (AHI) in early and late pregnancy.
• Pregnancy outcomes including preeclampsia, gestational diabetes, preterm birth, and infant weight were recorded.

Main Results:

• No significant association was found between SDB and preeclampsia, preterm birth (<34 weeks), or extremes of neonatal birth weight.
• A dose-dependent relationship was observed between SDB severity in early pregnancy and the risk of developing gestational diabetes.
• Women with moderate/severe SDB had a significantly higher risk of gestational diabetes compared to those without SDB.

Conclusions:

• Early pregnancy SDB is associated with an increased risk of gestational diabetes in a dose-dependent manner.
• SDB during pregnancy does not appear to be linked to preeclampsia, preterm birth, or abnormal birth weights in this high-risk cohort.