Prenatal 2D Ultrasonic Diagnosis of Fetal Complete Atrioventricular Block and Bilateral Hydroceles with Occult Maternal SS-A

SummaryObjectiveWe present a case of fetal complete atrioventricular block, diagnosed by the M mode of two-dimensional ultrasound, that was complicated with polyhydramnios and bilateral hydroceleCase ReportThe fetus was delivered at 38 weeks' gestation by caesarean section. Postpartum autoimmune survey disclosed positive anti-Ro antibodies (SS-A) for both the mother and the newborn. Severe neonatal bradycardia with complete atrioventricular block was identified.ConclusionAntenatal evaluation for a maternal history of autoimmune disease (especially systemic lupus erythematosus) and prevention of fetal bradycardia by reducing immune-mediated injuries on the cardiac conduction system are important.