Radiofrequency Ablation of Life-Threatening Supraventricular Tachycardia Due to a Posteroseptal Accessory Pathway in an Infant
DOI:
https://doi.org/10.2015/hc.v5i2.224Abstract
Supraventricular tachycardia (SVT) in infants may be resistant to multiple medications and cause life-threatening symptoms. Despite the known risks, catheter ablation may be necessary in rare cases. We present a 4-month-old 4.5 kg infant who presented with SVT that was resistant to all antiarrhythmic medications, including a combination of propafenone, amiodarone and propranolol at maximal doses. The infant underwent successful radiofrequency ablation of a posteroseptal accessory pathway. Despite later recurrence, medical therapy with propafenone and propranolol at standard doses resulted in complete control of the tachycardia until one year of age, when all medications were stopped without further recurrences.Downloads
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