The evolution of the pulmonary arterial sling syndrome, with particular reference to the need for reoperations because of untreated tracheal stenosis.

Background: We present a group of infants and children with pulmonary arterial sling and tracheal stenosis. In some of the patients, the anomalously located pulmonary artery had previously been reimplanted, but without simultaneous repair of the trachea.

Methods: From 1992 to 2007, we reimplanted the left pulmonary artery in 13 children with a pulmonary arterial sling.