title: [Radiofrequency ablation of ventricular arrhythmia from the non-coronary cusp].
abstract: There is a close anatomical relationship between the non-coronary aortic cusp (NCC) and sites where His bundle (HB) is recorded in the right ventricle (RV). We describe a patient with frequent premature ventricular beats originating near HB. Arrhythmia was successfully ablated from the NCC although local electrogram preceded QRS in NCC and His area. When RV mapping reveals an earliest ventricular activation in the HB region, mapping in the right coronary cusp and NCC should be done to identify the area of arrhythmia origin.
authors.affiliation: Klinika Zaburzeń Tytmu Serca, Instytut Kardiologii, Warszawa-Anin.
authors.forename: Michał
authors.initials: M
authors.lastname: Orczykowski
authors.forename: Lukasz
authors.initials: L
authors.lastname: Szumowski
authors.forename: Paweł
authors.initials: P
authors.lastname: Derejko
authors.forename: Robert
authors.initials: R
authors.lastname: Bodalski
authors.forename: Piotr
authors.initials: P
authors.lastname: Urbanek
authors.forename: Emilia
authors.initials: E
authors.lastname: Zaborowska
authors.forename: Andrzej
authors.initials: A
authors.lastname: Przybylski
authors.forename: Franciszek
authors.initials: F
authors.lastname: Walczak
mesh_terms: D000293:Adolescent; D001145:Arrhythmias, Cardiac / Q000175:diagnosis / Q000601:surgery*; D018780:Body Surface Potential Mapping; D002036:Bundle of His / Q000601:surgery; D017115:Catheter Ablation / Q000379:methods*; D006801:Humans; D008297:Male