Fifteen years of experience in repair of aortopulmonary window in children

Aorto-pulmonary window is a very rare Malformation which accounts for about 0.15% of all cardiac anomalies. There is no tendency for AP windows to close spontaneously. The natural history of infants with large AP windows is as unfavorable rarely they survive to childhood and those who survive beyond early life have important pulmonary vascular disease (1). The Richardson classification system for aorto-pulmonary window includes simple defects between the ascending aorta and pulmonary trunk (type I), defects extending distally to include the origin of the right main pulmonary artery (type II), and anomalous origin of the right main pulmonary artery from the ascending aorta with no other aorto-pulmonary communication (type III).