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.
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.
Authors: T S Tischer; R Schneider; J Lauschke; C Nesselmann; G Steinhoff; Dietmar Bänsch Journal: Herzschrittmacherther Elektrophysiol Date: 2015-08-08
Authors: Robbert C Bakker; Sakir Akin; Dimitris Rizopoulos; Charles Kik; Johanna J M Takkenberg; Ad J J C Bogers Journal: Interact Cardiovasc Thorac Surg Date: 2012-10-26
Authors: Amer Harky; Christiana Bithas; Jeffrey Shi Kai Chan; Mostafa Snosi; Dimitrios Pousios; Andrew D Muir Journal: Braz J Cardiovasc Surg Date: 2020-06-01