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Obstetrics & Gynecology:
Case Reports

Favorable Outcome in a Pregnancy With Complete Fetal Heart Block and Severe Bradycardia

Minassian, Vatche A. MD; Jazayeri, Allahyar MD, PhD

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Abstract

BACKGROUND: Pregnancies complicated by congenital heart block usually have a poor prognosis when there is severe fetal bradycardia.

CASE: We present a pregnancy with fetal heart rate of 40 beats per minute. She previously delivered a child with third-degree heart block by cesarean at 28 weeks. This pregnancy was complicated by a high ribonucleoprotein antibody anti-Ro/SSA titer and fetal bradycardia. The patient was treated with steroids and β-mimetics. The fetus continued to grow normally with reassuring biophysical profiles. After fetal lung maturity documentation at 34 weeks, she delivered by repeat cesarean a healthy 2349-g infant who required a permanent pacemaker.

CONCLUSION: Reassuring antepartum testing and normal growth in pregnant women with anti-Ro/SSA antibodies and congenital heart block may allow expectant management until fetal maturity.

© 2002 The American College of Obstetricians and Gynecologists

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