Isolated dextrocardia, with diodrast studies

Abstract 1. 1. A case of congenital isolated dextrocardia, without “mirror-image” inversion of the chambers, but with signs of congenital heart disease and attacks of paroxysmal tachycardia is presented. 2. 2. The expected noninversion of the heart chambers was supported by diodrast and electrocardiographic studies. The “apex” of the heart was shown to be formed by the right (venous) ventricle. The left-sided aortic arch and superior vena cava were also demonstrated by diodrast visualization. 3. 3. The rarity of the long survival of the patient and of the attacks of paroxysmal tachycardia is noted.