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Aortopulmonary Window
A rare congenital defect creating an abnormal communication between the ascending aorta and main pulmonary artery.
Full Definition
An aortopulmonary window is a congenital cardiovascular malformation characterized by an abnormal opening between the ascending aorta and the main pulmonary artery, proximal to the semilunar valves. This defect results in left-to-right shunting and can lead to congestive heart failure and pulmonary hypertension if left untreated. The condition is distinct from patent ductus arteriosus and typically requires surgical closure. It may be associated with other cardiac anomalies and can be classified by location and size.
Usage
Usage note: Often abbreviated as AP window; distinguish from PDA by anatomical location.
In Context
- "The cardiac catheterization confirmed a large aortopulmonary window with significant left-to-right shunt." — Catheterization report
- "Surgical repair of the aortopulmonary window was performed using a patch closure technique." — Operative note
Also known as
AP window
aortopulmonary septal defect
Don't confuse with
patent ductus arteriosus
truncus arteriosus