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Abstract #2538

Altered biochemical profiles in fetuses with congenital heart disease

Subechhya Pradhan1,2,3, Kushal Kapse3, Gilbert Vezina1, Mary Donofrio4, Jessica Lynn Quistorff3, Catherine Lopez3, Nicole Simard3, and Catherine Limperopoulos1,2,3

1Diagnostic Imaging and Radiology, Children's National Health System, Washington, DC, United States, 2Pediatrics, George Washington Univeristy, Bethesda, MD, United States, 3Developing Brain Research Laboratory, Children's National Health System, Washington, DC, United States, 4Fetal Heart Program, Children's National Health System, Washington, MD, United States

Brain injury is a major complication in infants with complex congenital heart disease (CHD). There is growing evidence that impaired brain development has its origins in the fetal period. We prospectively characterized in vivo fetal brain metabolic profiles in 307 fetuses (210 health fetuses and 97 with CHD). Findings from measurements of metabolite concentrations of NAA, Cr, and Cho increased with advancing GA in healthy and CHD fetuses. In CHD fetuses, tNAA/tCh ratios were significantly lower while lactate concentrations were significantly higher compared to healthy fetuses, suggesting early-life disturbances in fetal brain biochemistry.

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