title: Successful catheter ablation of premature ventricular contractions originating from the tricuspid annulus using a Halo-type catheter.
abstract: A 31-year-old woman with idiopathic premature ventricular contractions originating from the tricuspid annulus (TA) underwent electrophysiological testing. Activation mapping with a 20-pole bipolar Halo-type catheter positioned along the TA revealed the earliest ventricular activation at a site between 7 and 8 o'clock along the TA. A reversal in the polarity of the local ventricular electrograms was observed between the two neighbouring electrode pairs of the TA catheter. Successful catheter ablation was achieved at the ventricular site between those electrode pairs. A Halo-type catheter may be effective for mapping and catheter ablation of ventricular arrhythmias originating from the TA.
authors.affiliation: Division of Cardiovascular Disease, University of Alabama at Birmingham, 1670 University Boulevard, 1530 3rd Avenue South, Birmingham, AL 35294-0019, USA. takumi-y@fb4.so-net.ne.jp
authors.forename: Takumi
authors.initials: T
authors.lastname: Yamada
authors.forename: Jeffery Scott
authors.initials: JS
authors.lastname: Allison
authors.forename: Hugh Thomas
authors.initials: HT
authors.lastname: McElderry
authors.forename: Harish
authors.initials: H
authors.lastname: Doppalapudi
authors.forename: Andrew E
authors.initials: AE
authors.lastname: Epstein
authors.forename: Vance J
authors.initials: VJ
authors.lastname: Plumb
authors.forename: George Neal
authors.initials: GN
authors.lastname: Kay
mesh_terms: D018780:Body Surface Potential Mapping / Q000295:instrumentation* / Q000379:methods; D017115:Catheter Ablation / Q000295:instrumentation* / Q000379:methods; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006329:Heart Conduction System / Q000601:surgery*; D006801:Humans; D025321:Surgery, Computer-Assisted / Q000295:instrumentation* / Q000379:methods; D016896:Treatment Outcome; D014261:Tricuspid Valve / Q000601:surgery*; D018879:Ventricular Premature Complexes / Q000175:diagnosis* / Q000601:surgery*