scholarly journals Predictors of early and late left atrial tachycardia and left atrial flutter after catheter ablation of atrial fibrillation: Long-term follow-up

2015 ◽  
Vol 22 (5) ◽  
pp. 557-566 ◽  
Author(s):  
Maciej Wójcik ◽  
Alexander Berkowitsch ◽  
Sergey Zaltsberg ◽  
Christian W. Hamm ◽  
Heinz F. Pitschner ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Atrial Flutter ◽  
Left Atrial ◽  
Atrial Tachycardia ◽  
Long Term Follow Up

P3778Long-term outcome of non-pharmacologial treatment of atrial fibrillation in hypertrophic cardiomyopathy: a large single-centre experience

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
L Dinshaw ◽  
M Lemoine ◽  
J Hartmann ◽  
B Schaeffer ◽  
N Klatt ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Left Atrial ◽  
High Density ◽  
Term Outcome ◽  
Long Term Outcome ◽  
Density Mapping ◽  
Ablation Success

Abstract Introduction Atrial fibrillation (AF) is common in hypertrophic cardiomyopathy (HCM) and is generally associated with a significant deterioration of clinical status. Non-pharmacological treatment such as surgical and catheter ablation has become an established therapy for symptomatic AF but in patients with HCM often having a chronically increased left atrial pressure and extensive atrial cardiomyopathy the long-term outcome is uncertain. Purpose The present study aimed to analyse the long-term outcome of AF ablation in HCM and the mechanism of recurrent atrial arrhythmias using high-density mapping systems. Methods A total of 65 patients (age 64.5±9.9 years, 42 (64.6%) male) with HCM undergoing AF ablation for symptomatic AF were included in our study. The ablation strategy for catheter ablation included pulmonary vein isolation in all patients and biatrial ablation of complex fractionated electrograms with additional ablation lines if appropriate. In patients with suspected atrial tachycardia (AT) high-density activation and substrate mapping were performed. A surgical ablation at the time of an operative myectomy for left ventricular outflow tract obstruction was performed in 8 (12.3%) patients. The outcome was analysed using clinical assessment, Holter ECG and continuous rhythm monitoring of cardiac implantable electric devices. Results Paroxysmal AF was present in 27 (41.6%), persistent AF in 37 (56.9%) and primary AT in 1 (1.5%) patients. The mean left atrial diameter was 54.1±12.5 ml. In 11 (16.9%) patients with AT high-density mapping was used to characterize the mechanism of the ongoing tachycardia. After 1.9±1.2 ablation procedures and a follow-up of 48.5±37.2 months, ablation success was demonstrated in 58.9% of patients. The success rate for paroxysmal and persistent AF was 70.0% and 55.8%, respectively (p=0.023). Of those patients with AT high-density mapping guided ablation was successful in 44.4% of patients. The LA diameter of patients with a successful ablation was smaller (52.2 vs. 58.1 mm; p=0.003). Conclusion Non-pharmacological treatment of AF in HCM is effective during long-term follow-up. Paroxysmal AF and a smaller LA diameter are favourable for successful ablation. In patients with complex AT the use of high-density mapping can guide ablation resulting in further ablation success in a reasonable number of patients.

scholarly journals Adverse Clinical Events during Long-Term Follow-Up After Catheter Ablation of Atrial Fibrillation

2019 ◽  
Vol 60 (4) ◽  
pp. 812-821 ◽  
Author(s):  
Masaru Arai ◽  
Yasuo Okumura ◽  
Koichi Nagashima ◽  
Ichiro Watanabe ◽  
Ryuta Watanabe ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Clinical Events ◽  
Long Term Follow Up

Catheter ablation of atrial fibrillation reduces the risk of dementia and hospitalization during a very long-term follow-up

2020 ◽  
Vol 304 ◽  
pp. 75-81 ◽  
Author(s):  
Yu-Cheng Hsieh ◽  
Yun-Yu Chen ◽  
Kuo-Liong Chien ◽  
Fa-Po Chung ◽  
Li-Wei Lo ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Long Term Follow Up

Catheter ablation of atrial fibrillation in patients with atrial septal defect: long-term follow-up results

2014 ◽  
Vol 42 (1) ◽  
pp. 43-49 ◽  
Author(s):  
Jun-Gang Nie ◽  
Jian-Zeng Dong ◽  
Mohamed Salim ◽  
Song-Nan Li ◽  
Xiao-Yan Wu ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Atrial Septal Defect ◽  
Septal Defect ◽  
Long Term Follow Up
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