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White Matter Injury and Structural Anomalies in Infants with Prenatal Opioid Exposure
S L Merhar1,2, N A Parikh3,2, A Braimah4
1From the Perinatal Institute, Division of Neonatology (S.L.M., N.A.P., B.B.P.) Stephanie.merhar@cchmc.org.
Insights
Prenatal opioid exposure in infants may cause brain abnormalities, including white matter lesions and septopreoptic fusion anomalies. Further research is needed to understand long-term effects.
Area of Science:
- Neuroscience
- Pediatric Imaging
- Developmental Pediatrics
Background:
- Previous research has not identified structural brain injuries in infants with prenatal opioid exposure.
- Prenatal opioid exposure is a growing public health concern with potential neurodevelopmental impacts.
Purpose of the Study:
- To evaluate structural brain magnetic resonance imaging (MRI) in infants exposed to opioids prenatally.
- To identify potential brain abnormalities associated with prenatal opioid exposure in early infancy.
Main Methods:
- Structural brain MRI scans were reviewed for 20 term infants with prenatal opioid exposure.
- A control group of 20 term infants without prenatal opioid exposure was included for comparison.
- Infants were assessed at 4-8 weeks of age.
Main Results:
- Eight of 20 opioid-exposed infants showed punctate white matter lesions or white matter signal abnormalities.
- Two opioid-exposed infants presented with a septopreoptic fusion anomaly.
- No white matter injury or structural malformations were observed in the control group.
Conclusions:
- Prenatal opioid exposure is associated with detectable structural brain abnormalities in early infancy.
- Findings highlight the need for comprehensive neuroimaging and long-term outcome studies.
- Clinical neurodevelopmental follow-up is crucial for infants with prenatal opioid exposure.
Abstract:
Previous studies have not found structural injury or brain malformations in infants and children with prenatal opioid exposure. As part of an ongoing study evaluating neuroimaging in infants with prenatal opioid exposure, we reviewed structural brain MR imaging in 20 term infants with prenatal opioid exposure and 20 term controls at 4-8 weeks of age. We found that 8 of the 20 opioid-exposed infants had punctate white matter lesions or white matter signal abnormality on structural MR imaging, and 2 of the opioid-exposed infants had a septopreoptic fusion anomaly. No controls had white matter injury or structural malformations. Our findings underscore the importance of clinical neurodevelopmental follow-up and the need for more comprehensive imaging and long-term outcomes research following prenatal opioid exposure.
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