AI Article Synopsis
- The case describes a second-trimester fetus with bradyarrhythmia diagnosed at 19 weeks, linked to maternal Sjögren syndrome and specific antibodies.
- Sonographic examinations revealed that the bradycardia was caused by complete congenital heart block, likely due to autoimmune antibodies crossing the placenta.
- The fetus later developed hydrops fetalis at 21 weeks, prompting a discussion on the causes of congenital heart block and its potential effects on future pregnancies.
Article Abstract
We present the sonographic features of a second-trimester fetus diagnosed with a bradyarrhythmia at 19 weeks' gestation. The mother carried a diagnosis of Sjögren syndrome, including the presence of SSA and SSB antibodies. Ultrasound M-mode and fetal echocardiogram revealed the etiology of the bradycardia to be a complete fetal congenital heart block, likely due to transplacental passage of autoimmune anti-Ro/SSA and anti-La/SSB antibodies. Consequential to the congenital heart block, the fetus developed hydrops fetalis at 21 weeks' gestational age. We discuss the 2 major etiologies of congenital heart block and the implications in subsequent pregnancies.
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| http://dx.doi.org/10.1097/RUQ.0000000000000112 | DOI Listing |
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