Successful control of life-threatening polymorphic ventricular tachycardia by radiofrequency catheter ablation in an infant
We present a case of a 9-month-old girl in whom malignant polymorphic ventricular tachycardia (VT) was successfully controlled by radiofrequency catheter ablation under guidance with a three-dimensional mapping system. The VTs originated from the left ventricular lateral wall, left ventricular anterior wall, and left ventricular apex. At least six types of VTs were documented during the electrophysiology study. All VTs were successfully controlled after two sessions of radiofrequency catheter ablation, and she was discharged from our hospital on propranolol, mexiletine, flecainide, and aprindine.
KeywordsPolymorphic ventricular tachycardia Infant Automaticity Triggered activity Ventricular tachycardia Catheter ablation
The authors thank Mr. John Martin for his linguistic assistance with this article.
Conflict of interest
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