Cited by 46Congenital Heart Disease StudiesNeonatal and fetal brain pathologyFetal and Pediatric Neurological Disorders

Interplay of brain structure and function in neonatal congenital heart disease

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Birca, Ala, Vakorin, Vasily A., Porayette, Prashob, Madathil, Sujana, Chau, Vann, Seed, Mike, Doesburg, Sam M., Blaser, Susan +6 more·2016·Annals of Clinical and Translational Neurology

Abstract

Objective: To evaluate whether structural and microstructural brain abnormalities in neonates with congenital heart disease (CHD) correlate with neuronal network dysfunction measured by analysis of EEG connectivity. Methods: We studied a prospective cohort of 20 neonates with CHD who underwent continuous EEG monitoring before surgery to assess functional brain maturation and network connectivity, structural magnetic resonance imaging (MRI) to determine the presence of brain injury and structural brain development, and diffusion tensor MRI to assess brain microstructural development. Results: Neonates with MRI brain injury and delayed structural and microstructural brain development demonstrated significantly stronger high‐frequency (beta and gamma frequency band) connectivity. Furthermore, neonates with delayed microstructural brain development demonstrated significantly weaker low‐frequency (delta, theta, alpha frequency band) connectivity. Neonates with brain injury also displayed delayed functional maturation of EEG background activity, characterized by greater background discontinuity. Interpretation: These data provide new evidence that early structural and microstructural developmental brain abnormalities can have immediate functional consequences that manifest as characteristic alterations of neuronal network connectivity. Such early perturbations of developing neuronal networks, if sustained, may be responsible for the persistent neurocognitive impairment prevalent in adolescent survivors of CHD. These foundational insights into the complex interplay between evolving brain structure and function may have relevance for a wide spectrum of neurological disorders manifesting early developmental brain injury.

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  • Lower fractional anisotropy values are associated with altered functional connectivity on electroencephalography before surgery in infants with congenital heart disease, highlighting synchronicity between structural and functional brain development.

    “The functional impact of early microstructural abnormalities identified on dMRI in infants with CHD has been highlighted recently in a study showing that lower fractional anisotropy values are associated with altered functional connectivity using electroencephalography before surgery, 60 highlighting the synchronicity between structural and functional brain development.”

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Authors
Birca, A., Vakorin, V. A., Porayette, P., Madathil, S., Chau, V., Seed, M., Doesburg, S. M., Blaser, S., Nita, D. A., Sharma, R., Duerden, E. G., Hickey, E. J., Miller, S. P., & Hahn, C. D.
Affiliations
  • University of Toronto (CA)
  • Simon Fraser University (CA)
  • SickKids Foundation (CA)
  • Program in Neurosciences and Mental Health SickKids Research Institute Toronto Canada
Corresponding author
Hahn, Cecil D.
Venue
Annals of Clinical and Translational Neurology
Publisher
Wiley
Published
2016-08-14
Volume
3
Issue
9
Pages
708-722
ISSN
2328-9503 (ISSN-L)
OpenAlex
W2508688961
Cited by
46
References
52
Citations by year
2026: 4 · 2025: 3 · 2024: 3 · 2023: 7 · 2022: 3 · 2021: 4 · 2020: 5 · 2019: 9 · 2018: 2 · 2017: 5 · 2016: 1
FWCI
5.32
Type
journal article
Language
en
Open access
Locations
  • Annals of Clinical and Translational Neurology (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • TSpace (University of Toronto) (submittedVersion, cc-by-nc-nd)
  • Scholarship@Western (Western University) (submittedVersion)
Funders
Canadian Institutes of Health Research (MOP93780)
Topics
  • Health Sciences › Medicine › Epidemiology › Congenital Heart Disease Studies
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Neonatal and fetal brain pathology
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Fetal and Pediatric Neurological Disorders
Keywords
congenital heart disease, neonates, EEG connectivity, neuronal network dysfunction, brain injury, brain microstructure, brain development, EEG background activity, neurocognitive impairment, adolescent survivors, structural MRI, diffusion tensor imaging

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