title: Ablation of a concealed accessory pathway within a persistent left superior vena cava: role of the LocaLisa navigation system.
abstract: We report the ablation procedure of a concealed accessory pathway (AP) localized within a persistent left superior vena cava (PLSVC) in which the use of the LocaLisa system was of great value. The AP was the source of symptomatic AV re-entrant tachycardia and located in the initial portion of a PLSVC. The LocaLisa system allowed correct catheter placement and monitoring of stability. Five cooled-radiofrequency applications within the PLSVC suppressed the AP. PLSVC is a very unusual site of APs. The use of a navigation system may be extremely helpful in improving catheter ablation placement and stability in a very dilated vessel.
authors.affiliation: Clinique des Maladies du Coeur et des Vaisseaux, Hôpital Arnaud de Villeneuve, Centre Hospitalo-Universitaire, 371, Avenue du Doyen Gaston Guiraud, 34295 Montpellier, France. a-bortone@chu-montpellier.fr
authors.forename: Agustín
authors.initials: A
authors.lastname: Bortone
authors.forename: Jean Luc
authors.initials: JL
authors.lastname: Pasquié
authors.forename: Saddik Ait
authors.initials: SA
authors.lastname: Messaoudéne
authors.forename: Dominique
authors.initials: D
authors.lastname: Lacroix
mesh_terms: D017115:Catheter Ablation; D004108:Dilatation, Pathologic / Q000601:surgery; D005260:Female; D006329:Heart Conduction System / Q000473:pathology / Q000601:surgery; D006801:Humans; D008875:Middle Aged; D025321:Surgery, Computer-Assisted / Q000295:instrumentation / Q000379:methods; D013610:Tachycardia / Q000601:surgery*; D014683:Vena Cava, Superior