[Congenital complete atrioventricular block in neonatal lupus erythematosus].

Fetal bradycardia of 60 beats per minute was diagnosed in the 22nd week of a normal pregnancy. Echocardiography showed a complete fetal atrioventricular heart block. The fetal heart was without structural abnormalities. Auto-antibodies (Ro/SS-A and antinuclear antibodies) could be demonstrated in both mother and child. The mother, however, showed no signs or symptoms of a connective tissue disease. We describe neonatal lupus erythematosus as an important cause of congenital heart block.