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Ann Thorac Surg 1999;68:994
© 1999 The Society of Thoracic Surgeons

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Commentary

^a Department of Cardiac Surgery, Children’s Hospital, 300 Longwood Ave, Boston, MA 02115, USA

e-mail: jonas_r@al.tch.harvard.edu

Invited commentary

Pulmonary artery sling is a rare and very heterogeneous condition. In our experience it is almost always associated with complete tracheal rings, and often affects the entire length of the trachea. One of the common misperceptions about this condition it that tracheal stenosis occurs secondary to compression by the left pulmonary artery, as it runs its anomalous course between the distal trachea and the esophagus. However, this is almost certainly not the case since we and others have seen many variations of congenital tracheal stenosis associated with pulmonary artery sling. These can range from a profound degree of hypoplasia of the entire tracheobronchial tree, to a discrete stenosis quite separate from the sling. Interestingly, tracheomalacia is usually not a . . . [Full Text of this Article]

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