open access

Vol 66, No 6 (2008)
Other
Published online: 2008-06-23
Submitted: 2012-12-28
Get Citation

Original article
The LocaLisa system as the key to shortening the procedure duration and fluoroscopy time during ablation of atrial fibrillation

Edward Koźluk, Marcin Gawrysiak, Piotr Lodziński, Marek Kiliszek, Aleksandra Winkler, Janusz Kochanowski, Agnieszka Piątkowska, Jarosław D. Kasprzak, Dariusz Kozłowski, Grzegorz Opolski
Kardiol Pol 2008;66(6):624-629.

open access

Vol 66, No 6 (2008)
Other
Published online: 2008-06-23
Submitted: 2012-12-28

Abstract


Background: Ablation of atrial fibrillation (AF) can be difficult and time-consuming. Systems facilitating catheter navigation may be helpful.
Aim: To compare the efficacy of the LocaLisa system with the conventional mapping/ablation approach to radiofrequency (RF) ablation of AF.
Methods: Group 1, consisting of 64 patients (48 male; aged 51.5±10.6 years), underwent segmental isolation of the pulmonary veins with the Lasso catheter and the LocaLisa system. Group 2, consisting of 64 patients (44 male, aged 51.4±11.0 years), had RF ablation guided by means of a conventional fluoroscopy-based approach. Clinical and procedural data were analysed.
Results: Nine patients from group 1 and three patients from group 2 had persistent AF. In group 1 the mean number of isolated veins was 3.98&#177;0.96, while in group 2 &#8211; 4.0&#177;0.95 (NS). In group 1 cavotricuspid isthmus lines were created in four patients and lines in the roof of the left atrium in two patients. One patient needed slow pathway ablation. In group 2 six patients had ablation of the cavotricuspid isthmus and a line was created at the roof of the left atrium in one patient. Two patients had ectopic activity ablated in the crista terminalis. Procedure times were 131.6&#177;40.3 and 170.0&#177;56.5 min (p <0.0001) and fluoroscopy times were 16.93&#177;9.7 and 35.66&#177;12.7 min (p <0.0001) for groups 1 and 2, respectively. Long-term efficacy of RF ablation was similar in both groups (for example, complete success was achieved in 59% of patients using LocaLisa and 50% without using this system, NS).
Conclusions: The LocaLisa navigation system makes it possible to shorten both the duration of the procedure and the total fluoroscopy time during ablation of AF.

Abstract


Background: Ablation of atrial fibrillation (AF) can be difficult and time-consuming. Systems facilitating catheter navigation may be helpful.
Aim: To compare the efficacy of the LocaLisa system with the conventional mapping/ablation approach to radiofrequency (RF) ablation of AF.
Methods: Group 1, consisting of 64 patients (48 male; aged 51.5&#177;10.6 years), underwent segmental isolation of the pulmonary veins with the Lasso catheter and the LocaLisa system. Group 2, consisting of 64 patients (44 male, aged 51.4&#177;11.0 years), had RF ablation guided by means of a conventional fluoroscopy-based approach. Clinical and procedural data were analysed.
Results: Nine patients from group 1 and three patients from group 2 had persistent AF. In group 1 the mean number of isolated veins was 3.98&#177;0.96, while in group 2 &#8211; 4.0&#177;0.95 (NS). In group 1 cavotricuspid isthmus lines were created in four patients and lines in the roof of the left atrium in two patients. One patient needed slow pathway ablation. In group 2 six patients had ablation of the cavotricuspid isthmus and a line was created at the roof of the left atrium in one patient. Two patients had ectopic activity ablated in the crista terminalis. Procedure times were 131.6&#177;40.3 and 170.0&#177;56.5 min (p <0.0001) and fluoroscopy times were 16.93&#177;9.7 and 35.66&#177;12.7 min (p <0.0001) for groups 1 and 2, respectively. Long-term efficacy of RF ablation was similar in both groups (for example, complete success was achieved in 59% of patients using LocaLisa and 50% without using this system, NS).
Conclusions: The LocaLisa navigation system makes it possible to shorten both the duration of the procedure and the total fluoroscopy time during ablation of AF.
Get Citation

Keywords

atrial fibrillation; radiofrequency ablation; LocaLisa system; pulmonary vein isolation

About this article
Title

Original article
The LocaLisa system as the key to shortening the procedure duration and fluoroscopy time during ablation of atrial fibrillation

Journal

Kardiologia Polska (Polish Heart Journal)

Issue

Vol 66, No 6 (2008)

Pages

624-629

Published online

2008-06-23

Bibliographic record

Kardiol Pol 2008;66(6):624-629.

Keywords

atrial fibrillation
radiofrequency ablation
LocaLisa system
pulmonary vein isolation

Authors

Edward Koźluk
Marcin Gawrysiak
Piotr Lodziński
Marek Kiliszek
Aleksandra Winkler
Janusz Kochanowski
Agnieszka Piątkowska
Jarosław D. Kasprzak
Dariusz Kozłowski
Grzegorz Opolski

Important: This website uses cookies. More >>

The cookies allow us to identify your computer and find out details about your last visit. They remembering whether you've visited the site before, so that you remain logged in - or to help us work out how many new website visitors we get each month. Most internet browsers accept cookies automatically, but you can change the settings of your browser to erase cookies or prevent automatic acceptance if you prefer.

By "Via Medica sp. z o.o." sp.k., Świętokrzyska 73 street, 80–180 Gdańsk, Poland

tel.:+48 58 320 94 94, faks:+48 58 320 94 60, e-mail: viamedica@viamedica.pl