Criss-cross heart with intact ventricular septum.

We report a case of a criss-cross heart in a 6-month-old male child with echocardiographic and angiocardiographic findings of concordant atrioventricular and discordant ventriculoarterial connexions and an intact ventricular septum. This entity has been described with a ventricular septal defect as part of its own anatomic spectrum. The concept of the criss-cross heart, however, is best restricted to a form of spatial atrioventricular arrangement in which the atrioventricular connexions are criss-crossed.