Percutaneous Closure of Patent Ductus Arteriosus

A patent ductus arteriosus (PDA) is a connection between the aorta and the pulmonary artery typically the proximal LPA. It is reported in 1 in 2000 full-term births, and accounts for 10% of all congenital heart defects. Although most of these are detected early in life, some of them are picked up in the adult population. Most patients are asymptomatic; however, some present with heart failure or with pulmonary hypertension and Eisenmenger syndrome. Percutaneous closure is now considered the standard of care. This section will discuss the physiology, as well as the role of different imaging modalities in the diagnosis of a PDA, indications for closure and periprocedural assessment.