TY - JOUR
T1 - Long-term results following concomitant radiofrequency modified maze ablation for atrial fibrillation
AU - Maltais, Simon
AU - Forcillo, Jessica
AU - Bouchard, Denis
AU - Carrier, Michel
AU - Cartier, Raymond
AU - Demers, Philippe
AU - Perrault, Louis P.
AU - Poirier, Nancy
AU - Ladouceur, Martin
AU - Pagé, Pierre
AU - Pellerin, Michel
PY - 2010/9
Y1 - 2010/9
N2 - Background and aim of study: This study evaluated the long-term outcome of linear, endocardial, radiofrequency (RF) atrial ablation for the treatment of atrial fibrillation (AF) concomitantly to open-heart procedures for acquired cardiac organic disease. Methods: A saline-irrigated "pen-like" RF ablation catheter (Cardioblate®, Medtronic, Minneapolis, MN, USA) was used to perform endocardial lines of conduction block in 293 patients with AF who underwent open-heart procedures between September 2000 and February 2008. Results: Patients (age of 65 ± 11 years) underwent left atrial ablation for permanent (44%), paroxysmal (51%), or undetermined (4.4%) AF. Maintenance in sinus rhythm (SR) at discharge and at the end of follow-up (average 3.3 ± 1.2 years) was observed in 52% and 71% of patients, respectively. Preoperative type or duration of AF did not influence the results (p = NS). Multivariate analysis with a logistic regression model showed left atrial diameter and increasing age were independent predictors of recurrent AF. In this study, return to SR did not influence survival. Conclusions: This study confirmed that concomitant intraoperative RF ablation is an effective technique to restore long-term SR after cardiac surgery in patients with preoperative AF but does not influence long-term survival.
AB - Background and aim of study: This study evaluated the long-term outcome of linear, endocardial, radiofrequency (RF) atrial ablation for the treatment of atrial fibrillation (AF) concomitantly to open-heart procedures for acquired cardiac organic disease. Methods: A saline-irrigated "pen-like" RF ablation catheter (Cardioblate®, Medtronic, Minneapolis, MN, USA) was used to perform endocardial lines of conduction block in 293 patients with AF who underwent open-heart procedures between September 2000 and February 2008. Results: Patients (age of 65 ± 11 years) underwent left atrial ablation for permanent (44%), paroxysmal (51%), or undetermined (4.4%) AF. Maintenance in sinus rhythm (SR) at discharge and at the end of follow-up (average 3.3 ± 1.2 years) was observed in 52% and 71% of patients, respectively. Preoperative type or duration of AF did not influence the results (p = NS). Multivariate analysis with a logistic regression model showed left atrial diameter and increasing age were independent predictors of recurrent AF. In this study, return to SR did not influence survival. Conclusions: This study confirmed that concomitant intraoperative RF ablation is an effective technique to restore long-term SR after cardiac surgery in patients with preoperative AF but does not influence long-term survival.
UR - http://www.scopus.com/inward/record.url?scp=77956338094&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77956338094&partnerID=8YFLogxK
U2 - 10.1111/j.1540-8191.2010.01087.x
DO - 10.1111/j.1540-8191.2010.01087.x
M3 - Article
C2 - 21050271
AN - SCOPUS:77956338094
SN - 0886-0440
VL - 25
SP - 608
EP - 613
JO - Journal of cardiac surgery
JF - Journal of cardiac surgery
IS - 5
ER -