A baby with congenital heart block and hydrops fetalis diagnosed prenatally was delivered at 36 weeks of gestation. Heart failure was controlled with temporary cardiac pacing which was complicated by perforation of the myocardium. She made an uneventful recovery after implantation of a permanent pacemaker. Sjögren's syndrome A antibodies were detected in her serum. Coincidentally, she also had pulmonary valvular stenosis as a structural abnormality.
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So et al. (1990) studied this question.
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