Treatment of Refractory Supraventricular Tachycardia with Amiodarone: A Case Report

Most fetal tachyarrhythmias are benign but some types cause non-immun hydrops and fetal heart failure and result in prenatal and postnatal death. Amiodarone, a class 3 antiarrhythmic drug, can use treating for refractory fetal arrhytmias. A pregnant referred to our department at 26 weeks with hydrops fetalis. We detected supraventicular tachiacardia at 220 bpm and there was no further cardiac and structural anomaly. First of all digoxin treatment was initiated. Oral amiodarone was added when tachicardia and hydrops fetalis persisted 3 days after digoxin treatment. a pregnant delivered at 32 weeks and we did not see recurrence of supraventicular tachiacardia with treatment of amiodarone 200 mg per a day. Untreated SVT can be mortal and treatment should start immediately. Amidarone can use treating SVT alone or combination with antiarrhythmic drugs considering maternal and fetal side effects.