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Palliative surgical treatment of CHDs associated with UAPA can be performed with a relatively low risk. Systemic-to-pulmonary artery shunt and transluminal balloon pulmonary valvuloplasty are methods of choice in patients with non-severe hypoplasia of the single pulmonary artery. The intravascular intervention is indicated more in patients with a prevailing valvular component of the pulmonary stenosis. Palliative reconstruction of the right ventricular outflow tract is a more favourable procedure for patients with a severe hypoplasia of the single pulmonary artery.

Complete repair of congenital heart defects in patients with unilateral absence of a pulmonary artery is associated with a relatively low risk. If the hilar artery is of adequate size, surgical intervention should attempt restoration of the communication between the disconnected hilar artery and the pulmonary trunk, in addition to repairing the heart defects.

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