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).