A complex of congenital cardiac anomalies: Ventricular septal defect, biventricular origin of the pulmonary trunk, and subaortic stenosis

Four cases are reported that presented an anatomic complex consisting of ventricular septal defect with biventricular origin of the pulmonary trunk and subaortic stenosis. The ventricular septal defect in this complex is unusual in that it is located anteriorly in the outflow tract of the right ventricle and does not involve the membranous portion of the ventricular septum. The subaortic stenosis is the consequence of a muscular ridge that lies across the outflow tract of the left ventricle and encroaches on the width of the subaortic portion of this outflow tract. The pulmonary artery is not transposed and overrides the ventricular septal defect. Associated anomalies of the aortic arch were present in all cases. Early infantile death from pulmonary hemorrhage and edema occurred in these cases. Es reportate quatro casos que presentava un complexo anatomic de defecto del septo ventricular combinate con origine biventricular del trunco pulmonar e stenosis subaorotic. Le defecto septoventricular in iste complexo es inusual in tanto que illo se trova anteriormente in le tracto de effluxo del ventriculo dextere e non involve le portion membranose del septo ventricular. Le stenosis subaortic resulta de un elevation muscular que transversa le tracto de effluxo del ventriculo sinistre e assi reduce le largor de su portion subaortic. Le arteria pulmonar non es transponite e se superimpone al defecto del septo ventricular. Anomalias associate del arco aortic esseva presente in omne casos. In iste casos precoce morte in infantia resultava de hemorrhagia e edema del pulmones.