Who is a good candidate for transcatheter ASD/VSD closure?

Ideal candidates are patients with a secundum atrial septal defect or a muscular ventricular septal defect that is anatomically suitable for device closure, typically with a defect size less than 38 mm and adequate tissue margins. Contraindications include severe pulmonary hypertension, active infections, or defects too large or irregularly shaped for safe device placement. A thorough echocardiogram and cardiac evaluation are required to confirm eligibility.