Radiofrequency ablation of atypical atrial flutter after cardiac surgery or atrial fibrillation ablation: A randomized comparison of open-irrigation-tip and 8-mm-tip catheters

Objective: Intraoperative CARTO Mapping for Atrial Fibrillation ablation in cardiac surgery. Background: Surgical ablation of Atrial Fibrillation is usually performed without mapping. The study aims to determine if intraoperative CARTO can be useful to guide the ablating procedure. Methods and Findings: Fourteen patients with symptomatic and drug-refractory concomitant AF were operated on in 2003 and 2004. CARTO mapping was performed before and after surgical bipolar radio-frequency ablation. Application of energy was repeated when residual electrical activity was detected at the pulmonary veins-atrial junction. Pacing wires were applied on right and left pulmonary veins distally to the ablation line to confirm the exit block. The mapping protocol was completed in 12 patients. Acute left atrium-pulmonary vein isolation was achieved after single or double energy application in 2/12 (16.6%) and 9/12 (75%) patients, respectively. The mean duration of the mapping and ablation procedure was 67 minutes. At discharge, PV isolation persisted in 10 patients: exit block was confirmed by the absence of pacing through the pulmonary veins electrodes. After a mean follows up of 181 months, no further recurrent AF events were registered in 9/12 (69.2%) patients. Conclusions: CARTO system is useful during open-heart surgery to guide the ablating strategy.

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324 Incidence and long-term outcome of atrial flutter occurring in the post-operative course of non congenital cardiac surgery: is radiofrequency ablation immediately indicated?

EP Europace ◽

10.1016/eupace/7.supplement_1.104-b ◽

2005 ◽

Vol 7 (Supplement_1) ◽

pp. 104-104

Author(s):

M. Fatemi ◽

M. Leledy ◽

G. Le Gal ◽

Y. Lebras ◽

J-J. Blanc

Keyword(s):

Cardiac Surgery ◽

Radiofrequency Ablation ◽

Atrial Flutter ◽

Term Outcome ◽

Long Term Outcome ◽

Congenital Cardiac Surgery

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Comparison of modified MAZE with minimally invasive monopolar ablation and traditional bipolar radiofrequency ablation in the treatment of atrial fibrillation

Journal of Cardiothoracic Surgery ◽

10.1186/s13019-019-1012-x ◽

2019 ◽

Vol 14 (1) ◽

Author(s):

Wei Si ◽

Sijia Yang ◽

Linhui Pan ◽

Chengchegn Li ◽

Liang Ma

Keyword(s):

Quality Of Life ◽

Atrial Fibrillation ◽

Radiofrequency Ablation ◽

Minimally Invasive ◽

Sinus Rhythm ◽

Ablation Rate ◽

Atrial Fibrillation Ablation ◽

Bipolar Radiofrequency ◽

Postoperative Quality

Abstract Background and aim of the study Atrial fibrillation (AF) is the most common atrial arrhythmia. Our aim was to compare the outcomes of atrial fibrillation treatment with original modified minimally invasive MAZE using monopolar radiofrequency ablation (mi-MAZE) and open surgery MAZE using bipolar radiofrequency ablation (os-MAZE). Methods We searched the associated patients’ information on the medical record system of the First Affiliated Hospital, School of Medicine, Zhejiang University. Statistical Package for Social Sciences (SPSS) was used to analyse the data. The primary outcome is the atrial fibrillation ablation rate 3 months, 6 months, 12 months after operation. And secondary outcome is the postoperative quality of life. Results The mi-MAZE group included 42 patients and the os-MAZE group had 65 patients. Three months after surgery, we found that 31 patients (77.5%) in the mi-MAZE group were sinus rhythm and 44 (71.0%) recovered sinus rhythm in the os-MAZE group. We followed up these patients on the phone or in person and scored them on the SF-36 scale. The results were found to be 120.2 ± 8.10 vs 110.6 ± 6.58 (mi-MAZE vs os-MAZE, P < 0.001). Conclusions There was no significant difference of atrial fibrillation ablation rate (sinus rhythm recovery rate) between the mi-MAZE group and the os-MAZE group. The postoperative quality of life in mi-MAZE group was higher than that in os-MAZE group.

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