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Medicina (Buenos Aires)
versión impresa ISSN 0025-7680versión On-line ISSN 1669-9106
Resumen
MALVINO, Eduardo et al. Fetal supraventricular tachyarrhythmias refractory to initial therapy. Medicina (B. Aires) [online]. 2005, vol.65, n.2, pp.138-142. ISSN 0025-7680.
Fetal arrhythmia is an unusual cause of admission in critical care unit. We report three cases of pregnant patients with gestational age of 27 to 32 weeks, with diagnosis of fetal sustained supraventricular tachyarrhymias; which were resistant to digoxin as first line therapy. Two fetuses had supraventricular tachycardia and were converted with flecainide in association with digoxin. A remaining hydropic fetus suffering atrial flutter with 2:1 auriculo-ventricular conduction, failed to restore sinus rhythm with digoxin alone or in association with flecainide nor amiodarone, and required premature c-section at 30ª week of gestation. Due to amiodarone administration the neonate suffered transient neonatal hypothyroidism.
Palabras clave : fetal tachycardia; arrhythmia; supraventricular tachycardia; atrial flutter; hydrops fetalis.