Emergency transcatheter closure of a stented PDA in a patient with pulmonary atresia and intact ventricular septum: be ready for the unexpected!

Patients with congenital heart disease and duct-dependent pulmonary circulation can undergo stenting of the patent ductus arteriosus (PDA). This case shows that, due to the physiological changes occurring after stent implantation, sometimes it is necessary to close the stented PDA rather than to redilate it.