Titre
Impact of varying ablation patterns in a simulation model of persistent atrial fibrillation
Type
article
Institution
UNIL/CHUV/Unisanté + institutions partenaires
Périodique
Auteur(s)
Rotter, M.
Auteure/Auteur
Dang, L.
Auteure/Auteur
Jacquemet, V.
Auteure/Auteur
Virag, N.
Auteure/Auteur
Kappenberger, L.
Auteure/Auteur
Haissaguerre, M.
Auteure/Auteur
Liens vers les personnes
Liens vers les unités
ISSN
0147-8389
Statut éditorial
Publié
Date de publication
2007-03
Volume
30
Numéro
3
Première page
314
Dernière page/numéro d’article
21
Notes
Journal Article
Research Support, Non-U.S. Gov't --- Old month value: Mar
Research Support, Non-U.S. Gov't --- Old month value: Mar
Résumé
BACKGROUND: Several strategies of endovascular ablation with varying success rates and proarrhythmic effects have been proposed to treat persistent atrial fibrillation (AF). Evaluation of ablation patterns by computer simulation provides a tool for examination of its effectiveness and side effects. METHODS AND RESULTS: A biophysical model of the human atria based on magnetic resonance imaging derived geometry and a membrane kinetics model was used. Uniform conduction properties were assigned to the monolayer surface representing the atria. After induction of AF by burst pacing, progressively broader ablation patterns were applied: (A) individual pulmonary vein isolation (PVI); (B) double ipsilateral PVI; (C) double PVI with a roofline; (D) double PVI with a lateral mitral isthmus line, and (E) double PVI with both linear lesions. In addition, the influence of incomplete linear lesions and dilated atria were simulated. The incidence of AF termination was found to increase from pattern (A) to (E). Atrial flutter rate increased with incomplete ablations and in dilated atria. CONCLUSION: Computer simulation of various ablation patterns in persistent AF is feasible and can reproduce clinical results of catheter ablation. This model can be used to develop and simulate new ablation patterns and anticipate success rates and potential adverse effects.
Sujets
PID Serval
serval:BIB_1DE57ED397E6
PMID
Date de création
2008-02-15T10:28:54.941Z
Date de création dans IRIS
2025-05-20T19:11:12Z