aortopulmonary window
A rare congenital heart defect characterized by an abnormal communication between the ascending aorta and pulmonary artery.
Full Definition
Aortopulmonary window is a rare congenital cardiac anomaly consisting of an abnormal communication between the ascending aorta and the main pulmonary artery or right pulmonary artery. This defect results from incomplete development of the spiral septum that normally separates these great vessels during embryonic development. The condition leads to left-to-right shunting with increased pulmonary blood flow and volume overload of the left ventricle. If untreated, it can progress to pulmonary vascular disease and Eisenmenger syndrome. Surgical repair involves closing the defect with a patch while preserving the integrity of both great vessels.
Usage
Usage note: May be abbreviated as AP window. Distinguish clearly from patent ductus arteriosus in clinical documentation.
In Context
- "The infant presented with congestive heart failure secondary to a large aortopulmonary window." — clinical presentation
- "Surgical repair of the aortopulmonary window was accomplished using a Gore-Tex patch." — operative note