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A Case with Catecholaminergic Polymorphic Ventricular Tachycardia Unmasked after Successful Ablation of Atrial Tachycardias from Pulmonary Veins
Author(s) -
SUGIYASU AIKO,
OGINOSAWA YASUSHI,
NOGAMI AKIHIKO,
HATA YOSHITO
Publication year - 2009
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/j.1540-8159.2009.02519.x
Subject(s) - medicine , cardiology , catecholaminergic polymorphic ventricular tachycardia , catheter ablation , atrial fibrillation , atrial tachycardia , tachycardia , ablation , ventricular tachycardia , anesthesia , ryanodine receptor 2 , ryanodine receptor , calcium
Catecholaminergic polymorphic ventricular tachycardia (VT) is characterized by polymorphic VT during exercise, and the association of atrial fibrillation (AF) has been reported. However, the mechanism of AF in this disease and the relationship between VT and AF has been obscured. We described a 13‐year‐old girl who referred for catheter ablation of exercise‐induced paroxysmal AF. Multifocal atrial tachycardia mimicking AF on the surface electrocardiogram originated from multiple pulmonary veins (PVs). While AT became non‐inducible after the isolation of four PVs, polymorphic VT was initiated by isoproterenol infusion. Polymorphic VT was suppressed during rapid atrial pacing.