A new procedure for a trans-conduit puncture by grasping the dilator tip with a snare catheter: An alternative access method during catheter ablation of supraventricular tachycardias after an extracardiac Fontan operation

摘要

We report the case of a woman who presented with recurrent syncope in childhood and was treated for epilepsy at the age of 12. She was finally diagnosed as suffering from catecholaminergic polymorphic ventricular tachycardia (CPVT) at the age of about 36 when exercise testing demonstrated polymorphic ventricular tachycardia (VT; including periods of bidirectional VT), and genetic testing revealed a mutation at amino acid position 3872 in the gene, encoding the cardiac ryanodine receptor 2 gene (RyR2; CPVT-1~2; c.l 1616 C>G, Ile3872Met).