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Latent Atriofascicular Pathway Participating in a Wide Complex Tachycardia: Differentiation from Ventricular Tachycardia
Author(s) -
JORAT MOHAMMAD V.,
HAGHJOO MAJID,
ALIZADEH ABOLFATH,
FAZELIFAR AMIR FARJAM,
NIKOO MOHAMMAD H.,
EMKANJOO ZAHRA,
SADRAMELI MOHAMMAD A.
Publication year - 2006
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.1540-8159.2006.00559.x
Subject(s) - medicine , cardiology , accessory pathway , tachycardia , antidromic , sinus rhythm , ablation , catheter ablation , bundle branches , orthodromic , ventricular tachycardia , electrical conduction system of the heart , electrocardiography , electrophysiology , atrial fibrillation
Accessory pathways with anterograde decremental conduction properties usually are characterized by presence of antegrade preexcitation during atrial pacing. We report a 38‐year‐old man with frequent episodes of palpitation. No evidence of ventricular preexcitation was seen during sinus rhythm or atrial pacing. All electrophysiologic maneuvers were compatible with an antidromic tachycardia using atriofascicular pathway as the antegrade limb and the atrioventricular nodal pathway as retrograde limb. Radiofrequency ablation at recording site of accessory pathway potential resulted in cure of tachycardia with no recurrence during 3‐month follow‐up. This report indicated that atriofascicular pathway‐mediated tachycardia should be considered in differential diagnosis of all cases of wide complex tachycardia with left bundle branch morphology and left axis.