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Relation of Retinopathy of Prematurity to Brain Volumes at Term Equivalent Age and Developmental Outcome at 2 Years of Corrected Age in Very Preterm Infants

Journal article
Authors K. Sveinsdottir
D. Ley
H. Hovel
V. Fellman
P. S. Huppi
L. E. H. Smith
Ann Hellström
I. H. Pupp
Published in Neonatology
Volume 114
Issue 1
Pages 46-52
ISSN 1661-7800
Publication year 2018
Published at Institute of Neuroscience and Physiology, Department of Clinical Neuroscience
Pages 46-52
Language en
Links dx.doi.org/10.1159/000487847
Keywords Brain volume, Developmental outcome, Magnetic resonance imaging, Mental developmental index, growth-factor-i, sonic hedgehog, neurodevelopment, proliferation, disabilities, cerebellum, Pediatrics
Subject categories Ophthalmology, Pediatrics

Abstract

Background: Retinopathy of prematurity (ROP) is a major complication of preterm birth and has been associated with later visual and nonvisual impairments. Objectives: To evaluate relationships between any stage of ROP, brain volumes, and developmental outcomes. Methods: This study included 52 very preterm infants (gestational age [mean +/- SD]: 26.4 +/- 1.9 weeks). Total brain, gray matter, unmyelinated white matter (UWMV), and cerebellar volumes were estimated in 51 out of 52 infants by magnetic resonance imaging at term-equivalent age. Bayley Scales of Infant Development were used to assess developmental outcomes in 49 out of 52 in-fants at a mean corrected age of 24.6 months. Results: Nineteen out of 52 infants developed any stage of ROP. Infants with ROP had a lower median (IQR) UWMV (173 [156-181] vs. 204 [186-216] mL, p < 0.001) and cerebellar volume (18.3 [16.5-20] vs. 22.3 [20.3-24.7] mL, p < 0.001) than infants without ROP. They also had a lower median (IQR) mental developmental index (72 [56-83] vs. 100 [88-104], p < 0.001) and a lower psychomotor developmental index (80 [60-85] vs. 92 [81-103], p = 0.002). Brain volumes and developmental outcomes did not differ among infants with different stages of ROP. Conclusion: Any stage of ROP in preterm infants was associated with a reduced brain volume and an impaired developmental outcome. These results suggest that common pathways may lead to impaired neural and neurovascular development in the brain and retina and that all stages of ROP may be considered in future studies on ROP and development. (c) 2018 S. Karger AG, Basel

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