[Antenatal diagnosis of atrioventricular block. A case report].

The authors report the case of a congenital atrio-ventricular block (AVB) diagnosed after 32 weeks of amenorrhea in a woman, suffering from AVB, fitted with a pacemaker and who had already given birth to two children suffering from congenital AVB. The authors recall the physiopathology and antenatal diagnostic criteria of AVB and how it should be managed.