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Aortopulmonary window

Aortopulmonary window is a communication between the ascending aorta and the main trunk of the pulmonary artery. Occasionally this communication is extended like a ductus arteriosus. The pathological haemodynamic changes correspond to those of patent ductus arteriosus. However, in most cases, the shunt is considerably greater so that complications develop much sooner. Since the aortopulmonary window shows no tendency to close spontaneously, early operation is indicated.

The operation is usually performed using the heart-lung machine. In rare cases, it is possible to divide the aortopulmonary communication between two clamps. Interventional closure has also been described more recently.

Aortopulmonary window