title: Bundle brunch reentrant ventricular tachycardia with two distinct conduction patterns in a patient with complete right bundle branch block.
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.
authors.affiliation: Cardiovascular Center, Kyoto Katsura Hospital, Kyoto, Japan. enmomo@nifty.com
authors.forename: Yoshihisa
authors.initials: Y
authors.lastname: Enjoji
authors.forename: Masahiro
authors.initials: M
authors.lastname: Mizobuchi
authors.forename: Kensaku
authors.initials: K
authors.lastname: Shibata
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Ono
authors.forename: Atsushi
authors.initials: A
authors.lastname: Funatsu
authors.forename: Daisuke
authors.initials: D
authors.lastname: Kanbayashi
authors.forename: Tomoko
authors.initials: T
authors.lastname: Kobayashi
authors.forename: Shigeru
authors.initials: S
authors.lastname: Nakamura
mesh_terms: D000368:Aged; D018780:Body Surface Potential Mapping / Q000379:methods*; D002037:Bundle-Branch Block / Q000150:complications* / Q000175:diagnosis*; D005260:Female; D006329:Heart Conduction System; D006801:Humans; D035583:Rare Diseases / Q000175:diagnosis; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000150:complications* / Q000175:diagnosis*