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Last Posted: Nov 21, 2023
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Implementation of Rapid Genome Sequencing for Critically Ill Infants With Complex Congenital Heart Disease.
Thomas Hays et al. Circ Genom Precis Med 2023 7 e004050

We conducted a prospective evaluation of rGS to improve the care of infants with complex CHD in our cardiac neonatal intensive care unit. In a cohort of 48 infants with complex CHD, rGS diagnosed 14 genetic disorders in 13 (27%) individuals and led to changes in clinical management in 8 (62%) cases with diagnostic results. These included 2 cases in whom genetic diagnoses helped avert intensive, futile interventions before cardiac neonatal intensive care unit discharge, and 3 cases in whom eye disease was diagnosed and treated in early childhood.

A Multicenter Cross-Sectional Study in Infants with Congenital Heart Defects Demonstrates High Diagnostic Yield of Genetic Testing but Variable Evaluation Practices
MD Durbin et al, Genet in Med Open, May 2023

A multicenter cross-sectional study of five large children’s hospitals, including 2899 children = 14 months undergoing surgical repair for CHD in 2013-2016, followed by multivariate logistics regression analysis. Genetic testing occurred in 1607 of 2899 patients (55%). Testing rates differed highly between institutions (42% - 78%, p< 0.001). Choice of testing modality also differed across institutions (i.e., chromosomal microarray, 26% - 67%, p< 0.001). Genetic testing was abnormal in 702 of 1607 patients (44%) and no major phenotypic feature drove diagnostic yield. Only 849 patients were seen by geneticists (29%).

Implementation of Newborn Screening for Conditions in the United States First Recommended during 2010–2018
S Singh et al, IJNS, April 2023

During 2010–2022, seven conditions were added to the RUSP: severe combined immunodeficiency (SCID) (2010), critical congenital heart disease (CCHD) (2011), glycogen storage disease, type II (Pompe) (2015), mucopolysaccharidosis, type I (MPS I) (2016), X-linked adrenoleukodystrophy (X-ALD) (2016), spinal muscular atrophy (SMA) (2018), and mucopolysaccharidosis, type II (MPS II) (2022). The adoption of SCID and CCHD newborn screening by programs in all 50 states and three territories (Washington, D.C.; Guam; and Puerto Rico) took 8.6 and 6.8 years, respectively.

Association of Potentially Damaging De Novo Gene Variants With Neurologic Outcomes in Congenital Heart Disease.
Sarah U Morton et al. JAMA network open 2023 1 (1) e2253191

Are damaging de novo variants in genes not previously associated with neurodevelopmental risk (dDNV-NR) associated with worse neurologic findings in individuals with congenital heart disease (CHD)? In this cross-sectional study of 221 patients with CHD, dDNV-NRs as a group were not associated with neurologic outcomes. In post hoc analyses, dDNVs and rare putative loss-of-function (pLOF) variants, especially in chromatin-modifying genes, were associated with worse neurodevelopmental and brain magnetic resonance imaging (MRI) metrics.

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Disclaimer: Articles listed in the Public Health Genomics and Precision Health Knowledge Base are selected by the CDC Office of Public Health Genomics to provide current awareness of the literature and news. Inclusion in the update does not necessarily represent the views of the Centers for Disease Control and Prevention nor does it imply endorsement of the article's methods or findings. CDC and DHHS assume no responsibility for the factual accuracy of the items presented. The selection, omission, or content of items does not imply any endorsement or other position taken by CDC or DHHS. Opinion, findings and conclusions expressed by the original authors of items included in the update, or persons quoted therein, are strictly their own and are in no way meant to represent the opinion or views of CDC or DHHS. References to publications, news sources, and non-CDC Websites are provided solely for informational purposes and do not imply endorsement by CDC or DHHS.

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