Congenital Pulmonary Steal Phenomenon Associated with Tetralogy of Fallot, Right Aortic Arch, and Isolation of the Left Subclavian Artery |
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Authors: | N Carano P Piazza A Agnetti U Squarcia |
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Institution: | (1) Department of Pediatrics, University of Parma, Via Gramsci 14, 43100 Parma, Italy, IT;(2) Department of Neuroradiology, Ospedale Maggiore, Via Gramsci 14, 43100 Parma, Italy, IT |
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Abstract: | Isolation of the left subclavian artery has been reported in cases of tetralogy of Fallot with a right aortic arch. As the
isolated left subclavian artery is supplied by the left vertebral artery (in which the blood flow direction is inverted),
this anomaly is usually responsible for a congenital subclavian steal phenomenon. In our case the isolated left subclavian
artery was connected by a patent ductus arteriosus to the main pulmonary artery. Therefore the left vertebral artery did not
supply the distal left subclavian artery but supplied the main pulmonary artery (congenital pulmonary artery steal). |
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Keywords: | : Pulmonary steal — Aortic arch anomalies — Tetralogy of Fallot |
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