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Alterations of Orthodromic Circus Movement Tachycardia by Dual Atrioventricular Nodal Pathways in a Patient with Wolff‐Parkinson‐White Syndrome
Author(s) -
KREINER GERHARD,
HEINZ GOTTFRIED,
SIOSTRZONEK PETER,
RADOSZTICS SUSANNE,
GÖSSINGER HEINZ DAVID
Publication year - 1993
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.1540-8159.1993.tb01050.x
Subject(s) - orthodromic , medicine , tachycardia , cardiology , accessory pathway , qrs complex , paroxysmal tachycardia , concomitant , atrioventricular node , catheter ablation , electrocardiography , electrical conduction system of the heart , ablation , electrophysiology
In a patient with a left sided accessory pathway (AP) three different types of orthodromic circus movement tachycardia were observed; (1) narrow QRS complex tachycardia with a stable cycle length (CL); (2) wide QRS complex tachycardia with a functional bundle branch block ipsilateral to the AP, which, paradoxically, had a shorter CL. The decrease in CL was due to a decrease of the AH interval; and (3) narrow QRS complex tachycardia with alternating CL, due to alternations of the AH interval. These phenomena were attributed to a concomitant dual airioventricular (AV) node, which was eventually proven after successful catheter ablation of the AP.