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Double-outlet right ventricle: Pathology and angiocardiography.

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Division of Cardiology, the Hospital for Sick Children, the University of Toronto Faculty of Medicine, Toronto, Canada.


Double-outlet right ventricle is but one form of abnormal ventriculoarterial connection. The definition that more than half of each great artery originates above the morphologically right ventricle is arbitrary. As pointed out by Lecompte, those features that should be defined in hearts with the ventriculoarterial connection of double-outlet right ventricle (and indeed other forms of abnormal ventriculoarterial connection) include the nature of the infundibular septum, ventriculoinfundibular fold, trabeculoseptomargin-alis, attachments of infundibular septum to anterior or posterior limb of trabeculoseptomargin-alis, the size and position of the ventricular septal defect, the spatial relation of great artery(s) to the ventricular septal defect, the spatial relationship between the great, and the distance between the tricuspid and pulmonary valves and the semilunar valves. Copyright 2000 by W.B. Saunders Company.


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