Early‑onset TTN Frame‑Shift Cardiomyopathy in a Child: Successful Rescue With VA‑ECMO

4(S1)-html/IJECMO-4(S1)/4/S(1)/10.5 1/2 ConclusionThis case highlights a rare early-onset presentation of TTN frame-shift cardiomyopathy, contrasting with the typical adult-onset pattern.Viral infection likely served as a precipitating trigger, revealing an underlying genetic vulnerability.Early initiation of VA-ECMO was pivotal, providing life-saving support during refractory cardiogenic shock and allowing myocardial recovery.This case underscores the importance of genetic testing, multidisciplinary care, and timely mechanical circulatory support in pediatric DCM.