Ann Pediatr Card Close
 

Figure 2: The cartoons show the anatomy to be described in our patient. There was left-handed ventricular topology, so the right atrioventricular valve straddled between a right-sided morphologically left ventricle and a left-sided morphologically right ventricle. Unlike the anticipated situation with a ventricular septal defect, however, (left hand panel) there were dual orifices in the straddling valve. The connecting tongue separating the orifices (white star with red borders) was bound down to the crest of the ventricular septum (right hand panel), so that each valvar orifice connected to a separate ventricle, with the ventricular septum seeming to be intact

Figure 2: The cartoons show the anatomy to be described in our patient. There was left-handed ventricular topology, so the right atrioventricular valve straddled between a right-sided morphologically left ventricle and a left-sided morphologically right ventricle. Unlike the anticipated situation with a ventricular septal defect, however, (left hand panel) there were dual orifices in the straddling valve. The connecting tongue separating the orifices (white star with red borders) was bound down to the crest of the ventricular septum (right hand panel), so that each valvar orifice connected to a separate ventricle, with the ventricular septum seeming to be intact