Abstract Ventricular septal defect (VSD) is the most common congenital heart defect, and its management has evolved with percutaneous closure, a minimally invasive alternative to surgery. In this context, echocardiography has established itself as the primary imaging tool, crucial in all phases of the procedure. Transthoracic echocardiography (TTE) is essential for diagnosis, anatomical classification (perimembranous, muscular, inlet and outlet), initial hemodynamic assessment, and long-term follow-up. Indication for closure is based on such criteria as the left ventricular (LV) volume overload, […]