Percutaneous cardiac procedures performed in children with congenital heart defects have become a safe and minimally invasive alternative to cardiac surgery. The dynamic development of percutaneous treatment is a real challenge for the paediatrician and family doctor. In their daily medical practice, they have to deal more and more often with managing patients after such procedures on the occasion of other diseases. The widespread availability of non-invasive diagnostic methods (echocardiography, magnetic resonance imaging, computed tomography) makes it possible to plan minimally invasive diagnostic or interventional procedures, which may include a palliative procedure, the next stage of treatment or a final treatment procedure.