September 9, 2026 · Journal of the American College of Cardiology · DOI: 10.1016/j.jacc.2026.06.031

Genetic Determinants of Early Heart Failure in Hypoplastic Left Heart Syndrome: A Prospective NC-DEFINE Study

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The authors aimed to determine whether ultra-rare variants in cardiomyopathy-associated genes are linked to the risk of early heart failure (HF) in infants with hypoplastic left heart syndrome (HLHS). Their findings indicate that the presence of likely pathogenic/pathogenic variants significantly increases the risk of severe HF in neonates with HLHS, suggesting that genetic screening could be beneficial for early risk stratification and tailored treatment in this vulnerable population.

Brittany N Balint, Sudeep D Sunthankar, Gabrielle Monaco, Courtney A Bair, Rachel Wolfe-Miller, Carla D Gonzalez, Cindy S Argueta Portillo, Duncan MacKenzie, Katherine Freedy, Angela C Onorato, Sarah C Greskovich, Blythe Moreland, Jeff B Gaither, Ava Willoughby, Amee M Bigelow, Kim L McBride, Allison Levin, Leonie M Kurzlechner, Judah Kreinbrook, Santita Ebangawese, Saige Mitchell, Meredith Srour, Sarah Macris, Sophia Marusic, Austin Neuerburg, Maureen C Farrell, Katherine Carlson, Angelina Sala, Zachary Girvin, Megan Lancaster, Srushti Gangireddy, James Jaworski, Wei-Qi Wei, Todd Edwards, Andersen Coleman, Joseph W Turek, Elisabeth Leong, Karen Chiswell, Andrew Allen, Jennifer S Li, Peter White, Prince J Kannankeril, Vidu Garg, Timothy M Hoffman, Andrew P Landstrom

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