Key result
Transplacental digoxin therapy initially restored fetal rhythm in a case of fetal SVT, but recurrent paroxysms led to premature delivery at 32 weeks.
Case Report (n=1)
Transplacental digoxin can be used for fetal SVT, but refractory cases may require additional antiarrhythmics or premature delivery.
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May support initial digoxin in fetal SVT; leaves open optimal escalation strategies pending prospective data.
Fetal supraventricular tachycardia (SVT) is the most common form of fetal tachycardia. If started early in pregnancy, it can cause non-immune fetal hydrops. Echocardiography is the preferred method for the diagnosis with simultaneous pulsed Doppler recording from the superior vena cava and ascending aorta. Transplacental therapy with digoxin is the most common way of treatment. We present a case of fetal SVT detected at 26 weeks of pregnancy. Digoxin therapy restored the rhythm initially, but later paroxysms of fetal SVT persisted necessitating the addition of second antiarrhythmic medication which was discussed with the parents. The couple chose to proceed for premature delivery at 32 weeks.
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Husain et al. (2013) conducted a case report in Fetal supraventricular tachycardia (n=1). Digoxin was evaluated on Rhythm restoration. Transplacental digoxin therapy initially restored fetal rhythm in a case of fetal SVT, but recurrent paroxysms led to premature delivery at 32 weeks.
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