Pitfalls in the definition of complex fractionated atrial electrograms for atrial fibrillation studies

2019 ◽  
Vol 31 (1) ◽  
pp. 373-374
Author(s):  
Tiago P. Almeida ◽  
Xin Li ◽  
Diogo C. Soriano ◽  
Fernando S. Schlindwein ◽  
G. André Ng
Keyword(s):  
Atrial Fibrillation ◽  
Atrial Electrograms ◽  
Definition Of ◽  
Complex Fractionated Atrial Electrograms

Abstract 5659: Regular Atrial Tachycardias After Ablation Of Complex Fractionated Atrial Electrograms (CFAE) For Atrial Fibrillation: Acute Incidence And Recurrence In Clinical Follow-up

Circulation ◽  
2008 ◽  
Vol 118 (suppl_18) ◽  
Author(s):  
Tilko Reents ◽  
Gabriele Hessling ◽  
Stephanie Fichtner ◽  
Jinjin Wu ◽  
Heidi L Estner ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Successful Ablation ◽  
Atrial Electrograms ◽  
Initial Procedure ◽  
The Impact ◽  
External Cardioversion ◽  
Complex Fractionated Atrial Electrograms

Background: The catheter ablation of atrial fibrillation (AF) can be performed by ablation of complex fractionated atrial electrograms (CFAE). Endpoint of CFAE ablation is the regularisation or termination of AF. However, the impact of regular atrial tachycardia (AT) occurring during CFAE ablation on long term outcome has not been investigated. Thus, it is not clear whether these tachycardias should be acutely targeted for ablation. Methods: In 43 patients (31 male, age 62±9 years with paroxysmal (15 patients), persistent (25 patietns) or permanent AF (3 patients) organisation of AF to regular AT was achieved by ablation of CFAE. Mapping of AT with subsequent successful ablation was performed in 14/43 patients (33%), in the remaining 29/43 patients (67%) AT was terminated with external cardioversion or pace overdrive. After ablation procedure, patients were seen in our out-patient clinic with repetitive Holter ECG after 1, 3, and subsequently every 3 months and were intensively screened for the occurrence of regular AT. Results: In follow-up 22/43 patients (51%) developed sustained AT necessitating in 20 patients repeat catheter ablation (12 patients) or external cardioversion (8 patients). AF had been paroxysmal in 7/22 and persisten in 15/22 patients with AT in follow-up. In 14/22 patients (63%), no attempt for ablation of AT had been made during the initial procedure, in 8/22 AT (36%) had been mapped and initially successful ablated. Of 21 patients without AT occurrence during follow-up, AF had been paroxysmal in 8/21 and persistent or permanent in 13/21 patients. AT had been mapped and ablated in 6 (29%) whereas in 15/21 patients (71%), AT had not been targeted. Ablation of AT during initial procedure, number of ablation applications, procedure and fluoroscopy duration were not predictive for freedom of AT in follow-up. Conclusion: In our study, mapping and successful ablation of new onset regular atrial tachycardias (AT) occurring during ablation of CFAE for atrial fibrillation was not predictive for the occurrence of AT in follow-up. Thus, results after termination of AT by cardioversion was in long-term comparable to sometimes time-consuming mapping/ablation for AT.

Automated detection and characterization of complex fractionated atrial electrograms in human left atrium during atrial fibrillation

Heart Rhythm ◽  
2007 ◽  
Vol 4 (8) ◽  
pp. 1013-1020 ◽  
Author(s):  
Daniel Scherr ◽  
Darshan Dalal ◽  
Aamir Cheema ◽  
Alan Cheng ◽  
Charles A. Henrikson ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Left Atrium ◽  
Automated Detection ◽  
Atrial Electrograms ◽  
Complex Fractionated Atrial Electrograms

Ablation of Complex Fractionated Atrial Electrograms for Atrial Fibrillation Rhythm Control: A Systematic Review and Meta-analysis

2016 ◽  
Vol 32 (6) ◽  
pp. 791-802 ◽  
Author(s):  
Opeyemi Fadahunsi ◽  
Taiwo Talabi ◽  
Abiola Olowoyeye ◽  
Anthony Iluyomade ◽  
Oluwaseun Shogbesan ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Systematic Review ◽  
Meta Analysis ◽  
Rhythm Control ◽  
Atrial Electrograms ◽  
Complex Fractionated Atrial Electrograms

Is there a relationship between complex fractionated atrial electrograms recorded during atrial fibrillation and sinus rhythm fractionation?

Heart Rhythm ◽  
2012 ◽  
Vol 9 (2) ◽  
pp. 181-188 ◽  
Author(s):  
Laszlo Saghy ◽  
David J. Callans ◽  
Fermin Garcia ◽  
David Lin ◽  
Francis E. Marchlinski ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Sinus Rhythm ◽  
Atrial Electrograms ◽  
Complex Fractionated Atrial Electrograms
Sign in / Sign up

Export Citation Format

Share Document