title: Electrical disconnection of an arrhythmogenic superior vena cava with discrete radiofrequency current lesions guided by noncontact mapping.
abstract: This case describes a 54-year-old patient with paroxysmal atrial fibrillation and atrial flutter. Conventionally recorded local electrogram demonstrated a cycle length of 245 ms in the SVC which was conducted to the right atrium in a 2:1 fashion. The analysis of the virtual unipolar local electrogram from the noncontact mapping system demonstrated slow conduction between SVC and right atrium orthogonal to the atrial breakthrough in the upper part of the crista terminalis. RF ablation at the atrial breakthrough induced the electrical disconnection between the CVC and the right atrium.
authors.affiliation: Department of Cardiology, University Hospital Eppendorf, Hamburg, Germany. Weiss@uke.uni-hamburg.de
authors.forename: Christian
authors.initials: C
authors.lastname: Weiss
authors.forename: Stephan
authors.initials: S
authors.lastname: Willems
authors.forename: Thomas
authors.initials: T
authors.lastname: Rostock
authors.forename: Tim
authors.initials: T
authors.lastname: Risius
authors.forename: Rodolpho
authors.initials: R
authors.lastname: Ventura
authors.forename: Thomas
authors.initials: T
authors.lastname: Meinertz
mesh_terms: D001281:Atrial Fibrillation / Q000503:physiopathology / Q000601:surgery*; D001282:Atrial Flutter / Q000503:physiopathology / Q000601:surgery*; D018780:Body Surface Potential Mapping; D017115:Catheter Ablation / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D014683:Vena Cava, Superior / Q000503:physiopathology* / Q000601:surgery*