This is done angiographically as a temporary procedure for maintaining blood supply to pulmonary arteries. This is done through the femoral artery, axillary artery etc.

This is an alternative procedure at surgical option known as modified BT shunt and is done when surgical risk is high.

Indication of PDA stenting
Pulmonary atresia with or without ventricular septal defect in which PDA is only source of blood supply to lungs.

Pulmonary atresia is a situation in which there is no direct connection of ventricle with lungs as there is an atresia of pulmonary artery.

By PDA stenting, blood supply to lungs increased and so we can give pure blood to the body.

We do this procedure from leg vessel (femoral vein/artery) and occasionally we use axillary artery or carotid artery and we do this in anesthesia.