AUTHOR=Pervunina T. M. , Irtyuga O. B. , Vershinina T. L. , Babakekhyan M. V. , Lyapunova A. A. , Kostareva A. A. , Zubarev D. D. , Gorbatykh A. V. , Prokhorikhin A. A. , Grekhov E. V. , Vasichkina E. S. , Shlyakhto E. V. TITLE=Case Report: Transcatheter valve implantation in a 13-year-old teenager with critical aortic stenosis and Singleton–Merten syndrome JOURNAL=Frontiers in Cardiovascular Medicine VOLUME=Volume 12 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/cardiovascular-medicine/articles/10.3389/fcvm.2025.1506887 DOI=10.3389/fcvm.2025.1506887 ISSN=2297-055X ABSTRACT=This article presents a rare case of transcatheter aortic valve implantation (TAVI) in a critically ill teenager with Singleton–Merten syndrome. The procedure was successful, and the patient was discharged home without complication. To the best of our knowledge, this is the first report combining disease, age, and TAVI.