A Prospective Multi-Institutional Study Comparing the Brain Development in the Third Trimester between Opioid-Exposed...

Area of Science:

• Neuroscience
• Developmental Biology
• Radiology

Background:

• Adverse neurodevelopmental effects of prenatal opioid exposure are known.
• Causative mechanisms remain poorly understood.
• Prenatal opioid use impacts infant and child development.

Purpose of the Study:

• Compare quantitative volumetric and surface-based fetal brain features.
• Investigate differences between opioid-exposed and unexposed fetuses.
• Utilize advanced MR imaging processing techniques.

Main Methods:

• Prospective, multi-institutional study.
• Fetal MR imaging in pregnant women with and without opioid use.
• Quantitative analysis of brain volume, surface area, sulcal depth, and gyrification index.

Main Results:

• Opioid-exposed fetuses showed significantly lower global brain volume, cortical volume, surface area, sulcal depth, mean curvature, and gyrification index.
• Regional analysis revealed decreased surface area and sulcal depth in specific brain areas (Sylvian fissures, central sulci, etc.).
• Adjustments made for gestational age, sex, maternal education, polysubstance use, hypertension, and imaging site.

Conclusions:

• Prenatal opioid exposure is associated with altered fetal brain development in the third trimester.
• Findings contribute to understanding the impact of prenatal opioid exposure on the developing brain.
• This study provides quantitative evidence of neurodevelopmental alterations.