Abstract
Background
Characterization of brain injury and neurodevelopmental (ND) outcomes in critical congenital heart disease (cCHD) has primarily focused on hypoplastic left heart syndrome (HLHS) and transposition of the great arteries (TGA). This study reports brain injury and ND outcomes among patients with heterogeneous cCHD diagnoses beyond HLHS and TGA.
Methods
This prospective cohort study included infants with HLHS, TGA, or heterogenous “Other cCHD” including left- or right-sided obstructive lesions, anomalous pulmonary venous return, and truncus arteriosus. Brain injury on perioperative brain MRI and ND outcomes on the Bayley-II at 30 months were compared.
Results
A total of 218 participants were included (HLHS = 60; TGA = 118; “Other cCHD” = 40, including 8 with genetic syndromes). Pre-operative (n = 209) and post-operative (n = 189) MRI showed similarly high brain injury rates across groups, regardless of cardiopulmonary bypass exposure. At 30 months, participants with “Other cCHD” had lower cognitive scores (p = 0.035) compared to those with HLHS and TGA, though worse ND outcome in this group was driven by those with genetic disorders.
Conclusions
Frequency of brain injury and neurodevelopmental delay among patients with “Other cCHD” is similar to those with HLHS or TGA. Patients with all cCHD lesions are at risk for impaired outcomes; developmental and genetic screening is indicated.
Impact
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This study adds to literature on risk of brain injury in patients with critical congenital heart disease (cCHD) diagnoses other than hypoplastic left heart syndrome (HLHS) and transposition of the great arteries (TGA), a heterogenous cohort of patients that has often been excluded from imaging studies.
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Children with cCHD beyond HLHS and TGA have similarly high rates of acquired brain injury.
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The high rate of neurodevelopmental impairment in this heterogenous group of cCHD diagnoses beyond HLHS and TGA is primarily driven by patients with comorbid genetic syndromes such as 22q11.2 deletion syndrome.
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Data availability
The datasets generated and analyzed during the current study are not publicly available due to protected health information that, if shared, would compromise the privacy of the individuals. Data are available from the corresponding author on reasonable request.
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Acknowledgements
We would like to acknowledge the neuroradiologic contributions by Dr. A. James Barkovich (A.J.B.) and Dr. Kenneth Poskitt (K.P.).
Funding
This work was supported by the NINDS grant K23 NS099422 and P01 NS082330 from the National Institutes of Health.
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R.V.: substantial contributions to analysis and interpretation of data; drafting of article, revising article critically for important intellectual content; final approval of the version to be published. S.P. and P.M.: substantial contributions to conception and design, acquisition of data, and analysis and interpretation of data; drafting/revising article critically for important intellectual content; final approval of the version to be published. D.G.: substantial contributions to conception and design, analysis and interpretation of data; revising article critically for important intellectual content; final approval of the version to be published. S.C.: substantial contributions to acquisition of data, analysis and interpretation of data; revising the article critically for important intellectual content; final approval of the version to be published. Y.Z.: substantial contributions to acquisition of data; final approval of the version to be published. S.M.: substantial contributions to conception and design, acquisition of data; final approval of the version to be published.
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Vassar, R., Peyvandi, S., Gano, D. et al. Critical congenital heart disease beyond HLHS and TGA: neonatal brain injury and early neurodevelopment. Pediatr Res 94, 691–698 (2023). https://doi.org/10.1038/s41390-023-02490-9
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DOI: https://doi.org/10.1038/s41390-023-02490-9