Complete transposition with posteriorly located aorta and multiple ventricular septal defects.

A case of complete transposition with posterior aorta and multiple ventricular septal defects is reported. One perimembranous defect, diagnosed preoperatively, was closed while performing a Mustard operation. Three coexisting muscular ventricular septal defects, however, were missed and posed considerable problems at surgery. Although not previously reported, it should be possible to diagnose this condition preoperatively with a view to correction.