Europace Advance Access originally published online on November 10, 2006
Europace 2006 8(12):1038-1040; doi:10.1093/europace/eul115
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ELECTROPHYSIOLOGY
Ablation of a concealed accessory pathway within a persistent left superior vena cava: role of the LocaLisa navigation system
1 Clinique des Maladies du C
ur et des Vaisseaux, Hôpital Arnaud de Villeneuve, Centre Hospitalo-Universitaire, 371, Avenue du Doyen Gaston Guiraud, 34295 Montpellier, France;
2 Service de Cardiologie A, Centre Hospitalo-Universitaire Régional de Lille, France
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.
Key Words: Persistent left superior vena cava, Concealed left inferior accessory pathway, Dilated coronary sinus, LocaLisa navigation system
* Corresponding author. Tel: +33 467336215; fax: +33 467336218. E-mail address: a-bortone{at}chu-montpellier.fr