Fetal bradycardia requires prompt ultrasound confirmation to differentiate from maternal pulse and enable early intervention.
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May support early ultrasound in fetal bradycardia; hypothesis-generating and should not yet change practice.
Persistent fetal bradycardia noted in the antenatal period can occur secondary to maternal conditions, fetal cardiac structural defects, or from congenital heart block. Fetal bradycardia can be mistaken for maternal pulse and should be confirmed with ultrasound whenever possible. Prompt evaluation of the fetus with bradycardia can lead to early interventions designed to prevent cardiac damage and/or hydrops.
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Susan S. Salazar (2006) studied this question.
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