(1)
Department of General surgery, Fuwai Hospital, Beijing, China
21.1 General Considerations
Aortopulmonary window is also called aortopulmonary septum defect. Aortic and pulmonary valves are developed well. At the root of the AV and PV, above the position of the semilunar valve, is a septum for blood injection into the lumen. The difference between an aortopulmonary window and a persistent truncus arteriosus is the development of a semilunar valve (Fig. 21.1e–g). The proximal aortic sac suffers a developmental disorder in a patient with an aortopulmonary window, leading to septum dysplasia. Hence, this chapter describes it independently from the persistent truncus arteriosus.
21.2 Classification
The clinical classification includes:
Type I: defects occur in the proximal part of the aortopulmonary septum, just above the sinus of Valsalva, forming a window or a short tube (Fig. 21.1f).
Type II: defects occur in the distal part of the aortopulmonary septum, which are more cephalad on the ascending aorta, and the septum just above the sinus of Valsalva is intact.
Type III: defect is a combination of types I and II, and both the left and right pulmonary arteries rise from the ascending aorta.< div class='tao-gold-member'>Only gold members can continue reading. Log In or Register to continue
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