Journal
PRENATAL DIAGNOSIS
Volume 23, Issue 2, Pages 152-156Publisher
WILEY
DOI: 10.1002/pd.542
Keywords
fetal supraventricular tachycardia; fetal hydrops; digoxin; flecainide; amiodarone
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Objective The aim of this study was to evaluate the role of amiodarone for the prenatal treatment of hydropic fetuses with supraventricular tachycardia. Methods A group of 26 hydropic fetuses with supraventricular tachycardia was studied retrospectively. Results Twenty-five fetuses received transplacental treatment. The overall prenatal conversion rate was 60%. Nine fetuses were converted to sinus rhythm using either flecainide (n = 7) or amiodarone (n = 2) as first line therapy, whilst digoxin alone or in association with sotalol failed to restore sinus rhythm in all cases. After first-line therapy, supraventricular tachycardia persisted in 10 fetuses. Nine fetuses received amiodarone alone or in association with digoxin as second-line therapy, five of whom were converted to sinus rhythm. Among the 11 live neonates treated by amiodarone in utero, 2 (17%) presented an elevated thyroid stimulating hormone at day 3-4. These two infants received thyroid hormone substitution therapy and had a normal outcome. Conclusion When first-line therapy fails to restore sinus rhythm in hydropic fetuses with supraventricular tachycardia, amiodarone therapy should be considered as it allows a substantial number of fetuses to be converted prenatally. Copyright (C) 2003 John Wiley Sons, Ltd.
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