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Preterm Neuroimaging and School-Age Cognitive Outcomes
Journal article   Open access   Peer reviewed

Preterm Neuroimaging and School-Age Cognitive Outcomes

Susan R Hintz, Betty R Vohr, Carla M Bann, H Gerry Taylor, Abhik Das, Kathryn E Gustafson, Kimberly Yolton, Victoria E Watson, Jean Lowe, Maria Elena DeAnda, …
Pediatrics (Evanston), Vol.142(1), p.e20174058
07/2018
DOI: 10.1542/peds.2017-4058
PMCID: PMC6128951
PMID: 29945955
url
https://doi.org/10.1542/peds.2017-4058View
Published (Version of record) Open Access

Abstract

Children born extremely preterm are at risk for cognitive difficulties and disability. The relative prognostic value of neonatal brain MRI and cranial ultrasound (CUS) for school-age outcomes remains unclear. Our objectives were to relate near-term conventional brain MRI and early and late CUS to cognitive impairment and disability at 6 to 7 years among children born extremely preterm and assess prognostic value. A prospective study of adverse early and late CUS and near-term conventional MRI findings to predict outcomes at 6 to 7 years including a full-scale IQ (FSIQ) <70 and disability (FSIQ <70, moderate-to-severe cerebral palsy, or severe vision or hearing impairment) in a subgroup of Surfactant Positive Airway Pressure and Pulse Oximetry Randomized Trial enrollees. Stepwise logistic regression evaluated associations of neuroimaging with outcomes, adjusting for perinatal-neonatal factors. A total of 386 children had follow-up. In unadjusted analyses, severity of white matter abnormality and cerebellar lesions on MRI and adverse CUS findings were associated with outcomes. In full regression models, both adverse late CUS findings (odds ratio [OR] 27.9; 95% confidence interval [CI] 6.0-129) and significant cerebellar lesions on MRI (OR 2.71; 95% CI 1.1-6.7) remained associated with disability, but only adverse late CUS findings (OR 20.1; 95% CI 3.6-111) were associated with FSIQ <70. Predictive accuracy of stepwise models was not substantially improved with the addition of neuroimaging. Severe but rare adverse late CUS findings were most strongly associated with cognitive impairment and disability at school age, and significant cerebellar lesions on MRI were associated with disability. Near-term conventional MRI did not substantively enhance prediction of severe early school-age outcomes.
Disability Evaluation Neuroimaging - methods Brain - diagnostic imaging Prognosis Prospective Studies Follow-Up Studies Humans Child, Preschool Magnetic Resonance Imaging - methods Infant Cognition Developmental Disabilities - diagnostic imaging Developmental Disabilities - epidemiology Echoencephalography - methods Infant, Premature Child Infant, Newborn

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