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  • Title: Bundle brunch reentrant ventricular tachycardia with two distinct conduction patterns in a patient with complete right bundle branch block.
    Author: Enjoji Y, Mizobuchi M, Shibata K, Ono T, Funatsu A, Kanbayashi D, Kobayashi T, Nakamura S.
    Journal: Pacing Clin Electrophysiol; 2006 Dec; 29(12):1438-41. PubMed ID: 17201855.
    Abstract:
    We report a rare case of bundle branch reentrant ventricular tachycardia [BBRVT]. A 67-year-old female was admitted for management of wide QRS tachycardia (right bundle branch block [RBBB] and a southwest axis). The mapping procedure revealed the tachycardia circuit consisted of the left anterior fascicle (LAF) as an antegrade, and the right bundle as a retrograde pathway. She presented RBBB during sinus rhythm. LAF ablation changed the tachycardia configuration to a northwest axis and prolonged the cycle length. Left posterior fascicle ablation terminated the tachycardia, and complete atrioventricular block occurred, which showed the unidirectional conduction over the right bundle.
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