Sinoatrial nodal disease presenting with tachy-bradycardia syndrome in a fetus of anti-SSA/SSB-positive mother

Abstract

Tachy-bradycardia syndrome (TBS) has been reported rarely in the fetus. We present here an unusual dominant involvement of sinoatrial node in a fetus presenting with TBS of anti-Sjögren'syndrome-related antigen A (SS-A) and antigen B (SS-B) autoantibodies positive mother. Prenatal imaging findings, Doppler hemodynamics, and outcomes are described.

Keywords

• atrial arrhythmia
• autoimmune associated tachy-bradycardia syndrome
• fetus