Comparative Use of Upgraded and Conventional Electroanatomical Mapping Systems for Atrial Fibrillation Catheter Ablation

Aims. 3D electroanatomical mapping combined with intracardiac echocardiography- (EAM-ICE-) guided transseptal puncture has been proven safe and effective during the radiofrequency catheter ablation (RFCA) procedure used to treat paroxysmal atrial fibrillation (PAF). In this study, we aimed to compare the curative effect and safety of RFCA via F (fluoroscopy) and zero-fluoroscopy transseptal puncture guided by EAM-ICE in patients with PAF. Methods and Results. A prospective study in which 110 patients with PAF were included and assigned to two groups was conducted. Fifty-five (50%) patients were enrolled in the EAM-ICE group, whereas the other 55 (50%) patients were enrolled in the F group. There were no significant differences in baseline characteristics between the two groups. The transseptal duration time was longer in the EAM-ICE group (19.8 ± 3.0 min vs. 8.6 ± 1.2 min, p ≤ 0.01 ); however, fluoroscopy was not used in the EAM-ICE group compared with the F group (0 mGy vs. 109.1 ± 57.9 mGy). Similarly, there was also no significant difference in the recurrence rate of atrial fibrillation between the EAM-ICE and F groups (25.5% vs. 18.2%, p = 0.356 ). Conclusion. RFCA via EAM-ICE-guided zero-fluoroscopy transseptal puncture in patients with PAF is safe and effective for long-term follow-up.

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Rate of acquired pulmonary vein stenosis after ablation of atrial fibrillation referred to electroanatomical mapping systems: Does it matter?

Cardiology Journal ◽

10.5603/cj.a2018.0114 ◽

2019 ◽

Vol 26 (5) ◽

pp. 451-458 ◽

Cited By ~ 1

Author(s):

Katharina Schoene ◽

Arash Arya ◽

Cosima Jahnke ◽

Ingo Paetsch ◽

Nikolaos Dagres ◽

...

Keyword(s):

Atrial Fibrillation ◽

Pulmonary Vein ◽

Pulmonary Vein Stenosis ◽

Electroanatomical Mapping ◽

Vein Stenosis ◽

Mapping Systems

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Atrial Cardiomyopathy: a Role in the Pathogenesis of Atrial Fibrillation and Influence on the Results of Its Treatment

Ukrainian journal of cardiovascular surgery ◽

10.30702/ujcvs/21.4512/sa053-8589 ◽

2021 ◽

pp. 85-89

Author(s):

Oleksandr S. Stychynskyi ◽

Pavlo O. Almiz ◽

Alina V. Topchii

Keyword(s):

Atrial Fibrillation ◽

Catheter Ablation ◽

Heart Function ◽

Gene Mutations ◽

Electroanatomical Mapping ◽

Thromboembolic Complications ◽

Atrial Myocardium ◽

Magnetic Resonance Data ◽

Resonance Data

The work is dedicated to the issue of atrial cardiomyopathies (ACs). They have a significant effect on the heart function, provoke rhythm disturbances and increase the risk of thromboembolic complications. The aim. To analyze the latest publications on the topic. The material for the analysis were the papers published by the leading arrhythmological clinics. Discussion. This paper describes the origin of the term “atrial cardiomyopathy”, highlights the conditional classification of changes in the atrial myocardium according to the EHRAS classification. The causes of this nosological form may be some types of gene mutations, as well as hypertension, congestive circulatory failure, diabetes mellitus, myocarditis, etc. ACs play an important role in the occurrence of atrial fibrillation (AF) and also affect its natural course and treatment outcomes. Electroanatomical mapping and magnetic resonance data show significant fibrotic changes in the atria in individuals with this form of arrhythmia. The DECAAF study (Delayed enhancement MRI and atrial fibrillation catheter ablation) showed that fibrotic changes in the atrial myocardium are directly related to the frequency of recurrent arrhythmias after catheter ablation. The DECAAFII study confirmed the effectiveness of the influence on the fibrous substrate in the catheter treatment of AF at stages 1 and 2 of fibrosis. The results of catheter treatment depend on the severity of fibrosis, which shows the importance of taking this factor into account when determining the indications for ablation. Conclusions. Thus, AC is an important component of the pathogenesis of AF. Improvement of techniques for influencing the fibrous substrate will improve the results of catheter treatment of AF.

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