Circulation, Vol 54, 154-159, Copyright © 1976 by American Heart Association
S Shrivastava, SM Tadavarthy, T Fukuda and JE Edwards
Among 166 specimens with classical complete transposition, pulmonary or
subpulmonary stenosis was present in 22 cases. The bases for obstruction
were pulmonary valvular stenosis (one case), membranous subpulmonary
stenosis (nine cases), anomalous attachment of the mitral valve to the
ventricular septum (five cases) and combinations of causes (seven cases).
Conditions contributing to combinations of causes included the above, in
addition to accessory mitral or pulmonary valvular tissue and herniation of
a tricuspid valvular pouch through a related ventricular septal defect. In
addition to the 166 cases mentioned, our collection contained six cases of
atypical complete transposition characterized by a conus being present in
the each ventricel. In three of these six, subpulmonary stenosis was
present and caused by a narrow inlet to the left ventricular conus.
ARTICLES
Anatomic causes of pulmonary stenosis in complete transposition
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