Atrial septal defect: evaluation of the therapeutic approach in Belgium through a national database of congenital heart disease. KU Leuven
Atrial septal defect (ASD) represents approximately 10% of all congenital heart diseases (CHD) and is the third most common form of congenital heart defects. The incidence of CHD in Belgium is 1%, with ASD accounting for 25% of the cases. (Data from the database of CHD UZ Leuven.) A substantial shunt through the defect from the left to the rightatrium, causing a progressive volume overload of the right heart and pulmonary circulation, may lead ...