title: Modulation of the slow pathway in the presence of a persistent left superior caval vein using the novel magnetic navigation system Niobe.
abstract: OBJECTIVE
  This is the first report of a young female with typical AVNRT in the presence of a persistent left superior caval vein that underwent catheter ablation using the novel magnetic navigation system (MNS) Niobe (Stereotaxis Inc.).
  
  
  METHODS
  The MNS consists of two outer permanent magnets (about 0.1 T) that align a third small magnet integrated in the tip of a mapping and ablation catheter along its magnetic field lines. By changing the orientation of the outer magnets, the orientation of the magnetic field lines also change, thereby allowing navigation of the ablation catheter. In combination with an automated advancer system, this novel technique allows for the first time complete remote catheter ablation.
  
  
  RESULTS
  Successful slow pathway modulation was performed using a total of seven radiofrequency current applications via the magnetic ablation catheter. No complication occurred.
  
  
  CONCLUSIONS
  The novel magnetic navigation system proved to be a safe and feasible tool for remote catheter ablation of common type AVNRT in the presence of a persistent left superior caval vein.
authors.affiliation: II. Med. Abteilung (Kardiologie), Allgemeines Krankenhaus St. Georg, Lohmühlenstr. 5, 20099 Hamburg, Germany.
authors.forename: Sabine
authors.initials: S
authors.lastname: Ernst
authors.forename: Feifan
authors.initials: F
authors.lastname: Ouyang
authors.forename: Christian
authors.initials: C
authors.lastname: Linder
authors.forename: Klaus
authors.initials: K
authors.lastname: Hertting
authors.forename: Fabian
authors.initials: F
authors.lastname: Stahl
authors.forename: Julian
authors.initials: J
authors.lastname: Chun
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Hachiya
authors.forename: Ulrike
authors.initials: U
authors.lastname: Krumsdorf
authors.forename: Matthias
authors.initials: M
authors.lastname: Antz
authors.forename: Karl-Heinz
authors.initials: KH
authors.lastname: Kuck
mesh_terms: D000328:Adult; D017115:Catheter Ablation / Q000295:instrumentation* / Q000379:methods; D004574:Electromagnetic Fields; D022062:Electrophysiologic Techniques, Cardiac / Q000295:instrumentation* / Q000379:methods; D005260:Female; D006329:Heart Conduction System / Q000503:physiopathology; D006801:Humans; D012008:Recurrence; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000150:complications / Q000503:physiopathology / Q000601:surgery*; D014683:Vena Cava, Superior / Q000002:abnormalities*