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Incessant Nonreentrant Atrioventricular Nodal Tachycardia Due to Multiple Nodal Pathways Treated by Radiofrequency Ablation of the Slow Pathways
Author(s) -
ARENA GIUSEPPE,
BONGIORNI MARIA GRAZIA,
SOLDATI EZIO,
GHERARDUCCI GHERARDO,
MARIANI MARIO
Publication year - 1999
Publication title -
journal of cardiovascular electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.193
H-Index - 138
eISSN - 1540-8167
pISSN - 1045-3873
DOI - 10.1111/j.1540-8167.1999.tb00228.x
Subject(s) - nodal , medicine , tachycardia , ablation , cardiology , radiofrequency ablation , nodal signaling , supraventricular tachycardia , catheter ablation , accessory pathway , electrical conduction system of the heart , atrioventricular node , electrocardiography , microbiology and biotechnology , embryo , gastrulation , embryogenesis , biology
Incessant Nonreentrant AVNT by Multiple Pathways. In patients with dual AV nodal physiology, simultaneous anterograde fast and slow pathway conduction resulting in an unusual form of nonreentrant A V nodal tachycardia has been observed. We describe the case of a young patient with an incessant form of complex supraventricular tachycardia who underwent electrophysiologic evaluation, which showed simultaneous conduction via multiple AV nodal pathways that caused a unique form of incessant nonreentrant AV nodal tachycardia. Radiofreqeuncy ablation of the spatially closed intermediate and slow pathways effectively treated the tachycardia. The electrophysiologic determinants of simultaneous conduction through the multiple nodal pathways and the apparently different behavior of the fast pathway before and after ablation are discussed.