A case report of reversible dilated cardiomyopathy due to left main coronary artery ostial stenosis: optimal imaging is key

A high index of suspicion for coronary artery anomalies is required for infants presenting with suspected dilated cardiomyopathy. While CT is a potential diagnostic tool for investigating coronary abnormalities in children, image optimization on ECMO is challenging, with further imaging often required. The superior spatial and temporal resolution of cardiac angiography via catheterization allows definitive diagnosis of coronary artery abnormalities in this situation and facilitates timely surgical intervention.