Document Type : Case Report


Department of Obstetrics and Gynaecology, Faculty of Medicine, Dr. Soetomo General Academic Hospital, Surabaya, Indonesia


Atrioventricular block (AVB) occurs in approximately one in 15,000 to 20,000 live births. Congenital complete AV block (AVB) may arise from various mechanisms, whether immune-mediated or otherwise. In the context of immune-mediated AV block, a variety of factors contribute to its development, often including the passage of maternal autoantibodies (anti-Ro/SSA and/or anti-La/SSB) across the placenta. Of all AVBs, 40% are predominantly linked to maternal antibodies positive for SSA/Ro or SSB/La. Through placental circulation, these antibodies may cause immune-mediated inflammation or fibrosis in fetal cardiac tissues, which is crucial for conduction. Presented here is a case of complete congenital atrioventricular block in the fetus, characterized by negative maternal Ro/SSA and La/SSB but positive in the Anti Nuclear Antibody test. The baby was delivered by cesarean section at term with Apgar scores of 7 and 8, and a temporary pacemaker was installed at one day old, leading to a favorable outcome.

Graphical Abstract

A challenge in managing fetal congenital total avb with negative anti-ro and anti-la and positive anti nuclear antibody pregnant woman: A case report


Main Subjects

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