Termination of Atrial Fibrillation by Catheter Ablation can be Successfully Predicted from Baseline ECG

Détails

Ressource 1Télécharger: BIB_958642DFFFED.P001.pdf (515.94 [Ko])
Etat: Serval
Version: de l'auteur
ID Serval
serval:BIB_958642DFFFED
Type
Actes de conférence (partie): contribution originale à la littérature scientifique, publiée à l'occasion de conférences scientifiques, dans un ouvrage de compte-rendu (proceedings), ou dans l'édition spéciale d'un journal reconnu (conference proceedings).
Collection
Publications
Titre
Termination of Atrial Fibrillation by Catheter Ablation can be Successfully Predicted from Baseline ECG
Titre de la conférence
Cardiostim 2012, 18th World Congress in Cardiac Electrophysiology and Cardiac Techniques
Auteur(s)
Buttu A., Van Zaen J., Viso A., Forclaz A., Pascale P., Narayan S.M., Vesin J.M., Pruvot E.
Adresse
Nice, France, June 13-16, 2012
ISBN
0276-6574
ISSN-L
0276-6574
Statut éditorial
Publié
Date de publication
2012
Volume
39
Série
Computing in Cardiology
Pages
189-192
Langue
anglais
Résumé
Purpose Multiple organization indices (OIs) have been used to predict the outcome of stepwise catheter ablation (step-CA) in long-standing persistent AF (pers-AF), however with limited success. Our study aims at developing innovative OIs from baseline (BL, before ablation) ECG in order to predict the outcome of step-CA. Methods Fourteen consecutive patients (pts) (60±5 y, AF duration 21±9 m) underwent a step-CA consisting in pulmonary veins isolation, left atrial (LA) defragmentation and linear ablations, and right atrial (RA) ablations if non terminated. Chest lead V6 was placed in the back (V6b). After QRST cancellation from chest leads V1 to V6b, two OIs were computed to quantify the harmonic components of ECG atrial activity: 1) phase difference variance (PD) between the AF harmonic components as a measure of AF regularity, and 2) adaptive OI (AOI) evaluating the time evolution of the AF harmonic components. Both indices were compared to classical ones: a spectrum-based OI (SOI) and ECG AF cycle length (AFCL). Results Pers-AF was terminated into sinus rhythm or atrial tachycardia in 10/14 pts during step-CA, 8 during LA (LT), 2 during RA (RT) ablation, and 4 were non terminated (NT). The figure shows that LT was best separated from RT/NT before ablation by AOI computed on lead V1 (A) and PD from lead V6b (B) as compared to SOI and AFCL respectively. Conclusion Our results suggest that adaptive OIs computed before ablation perform better than classical OIs for separating LT from RT/NT pts. These findings are indicative of a higher baseline organization in LT pts that could be used to select candidates for the restoration of sinus rhythm by step-CA.
Création de la notice
28/08/2013 11:33
Dernière modification de la notice
03/03/2018 19:40
Données d'usage