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Circulation, Vol 60, 1325-1334, Copyright © 1979 by American Heart Association

ARTICLES

Angiographic study of univentricular heart of right ventricular type

B Soto, EG Bertranou, PR Bream, A Souza Jr and LM Bargeron Jr

An angiographic analysis of 10 cases of univentricular heart of the right ventricular type is reported. This congenital malformation is characterized by a large chamber with right ventricular morphology that receives both atrioventricular valves, and a second, smaller chamber, a trabecular pouch, with left ventricular morphology. These chambers are separated by a posterior septum but are connected by an inlet septal defect. The angiographic studies were done using the angled angiographic techniques in three patients and the standard frontal and lateral angiographic views in seven cases. The atrial situs in seven patients was solitus, in one inversus, and in two it was ambiguus with left isomerism. In seven patients the usually large right ventricular chamber received two atrioventricular valves and in four patients, one atrioventricular valve was straddling. Three patients had atresia of one atrioventricular valve. The trabecular pouch was small in seven patients but relatively large in three. In six patients the trabecular pouch was located posterior and to the left of the right ventricular chamber and in four anterior and to the right. Double outlet right ventricle was present in all cases. The aorta arose anteriorly to the pulmonary artery in nine patients and posteriorly in one. An autopsy was performed in one case and its correlation with the angiographic findings was remarkable. The angiographic demonstration of the anatomicaly details of this entity and its associated anomalies was facilitated by angled angiography.

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