title: Radiofrequency catheter ablation of two right Mahaïm-like accessory pathways in a patient with Ebstein's anomaly.
abstract: A 17-year-old woman with Ebstein's anomaly and recurrent episodes of antidromic tachycardia with two distinct morphologies is described. The tachycardias were produced by two separate Mahaïm-like accessory pathways. These were localized by their activation potentials at the anterolateral ventricular margin of the tricuspid annulus and ablated in a single session using radiofrequency current.
authors.affiliation: Department of Cardiology, Ullevål University Hospital, Oslo, Norway.
authors.forename: R F
authors.initials: RF
authors.lastname: Berntsen
authors.forename: K T
authors.initials: KT
authors.lastname: Gjesdal
authors.forename: H
authors.initials: H
authors.lastname: Aass
authors.forename: E S
authors.initials: ES
authors.lastname: Platou
authors.forename: T
authors.initials: T
authors.lastname: Hole
authors.forename: O M
authors.initials: OM
authors.lastname: Orning
mesh_terms: D000293:Adolescent; D017115:Catheter Ablation; D004437:Ebstein Anomaly / Q000150:complications* / Q000473:pathology; D004562:Electrocardiography; D005260:Female; D006329:Heart Conduction System / Q000002:abnormalities / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D013617:Tachycardia, Supraventricular / Q000209:etiology / Q000503:physiopathology / Q000601:surgery*