title: Catheter ablation of accessory atrioventricular connection between right atrial appendage to right ventricle: a case report.
abstract: A 24-year-old woman had experienced frequent attacks of orthodromic AV reciprocating tachycardia. The polarity of the delta waves suggested a right anterior or anterolateral accessory pathway. After ablation at the tricuspid annulus was unsuccessful, earliest retrograde atrial activation was recorded on the floor of the right atrial appendage, 2 cm above the tricuspid ring. Application of radiofrequency energy at this site abolished accessory pathway conduction. This unusual accessory pathway, located between the floor of the right atrial appendage and the right ventricle, was amenable to radiofrequency catheter ablation from within the right atrial appendage.
authors.affiliation: Department of Medicine, Keio University School of Medicine Tokyo, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Soejima
authors.forename: H
authors.initials: H
authors.lastname: Mitamura
authors.forename: T
authors.initials: T
authors.lastname: Miyazaki
authors.forename: S
authors.initials: S
authors.lastname: Miyoshi
authors.forename: M
authors.initials: M
authors.lastname: Murata
authors.forename: T
authors.initials: T
authors.lastname: Sato
authors.forename: K
authors.initials: K
authors.lastname: Shinagawa
authors.forename: S
authors.initials: S
authors.lastname: Takatsuki
authors.forename: S
authors.initials: S
authors.lastname: Ogawa
authors.forename: H
authors.initials: H
authors.lastname: Nakagawa
mesh_terms: D000328:Adult; D001283:Atrioventricular Node / Q000503:physiopathology* / Q000601:surgery*; D002036:Bundle of His / Q000601:surgery; D017115:Catheter Ablation / Q000379:methods; D004562:Electrocardiography; D005260:Female; D006801:Humans; D012008:Recurrence; D013614:Tachycardia, Paroxysmal / Q000503:physiopathology / Q000601:surgery