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Risk of Atrial Fibrillation after Ablation of Cavotricuspid Isthmus-Dependent Atrial Flutter: Is Combined Ablation of Atrial Fibrillation Worthwhile?
- Source :
-
Arquivos brasileiros de cardiologia [Arq Bras Cardiol] 2020 Mar 30; Vol. 114 (5), pp. 775-782. - Publication Year :
- 2020
-
Abstract
- Background: Simultaneous ablation of atrial fibrillation (AF) and cavotricuspid isthmus (CTI)-dependent atrial flutter can be performed when both arrythmias had been recorded before the procedure. However, the best approach has not been defined in case of patients referred for ablation with CTI-dependent atrial flutter, without history of AF.<br />Objectives: To assess the prevalence and to identify predictors of the first episode of AF after ablation of CTI-dependent atrial flutter in patients without history of AF.<br />Methods: Retrospective cohort of patients with CTI-dependent atrial flutter without history of AF undergoing catheter ablation. Clinical characteristics were compared between patients who developed AF and those who did not have AF after the procedure. Significance level was set at 5%. In the analysis of predicting factors, the primary outcome was occurrence of AF after CTI-dependent atrial flutter ablation.<br />Results: Of a total of 227 patients undergoing ablation of CTI-dependent atrial flutter (110 with history of AF and 33 without adequate follow-up), 84 were included, and 45 (53.6%) developed post-ablation AF. The HATCH and CHA2DS2-VASC scores were not different between the groups. Recurrence rate of CTI-dependent atrial flutter and complication rate were 11.5% and 1.2%, respectively, after ablation.<br />Conclusions: Although ablation of CTI-dependent atrial flutter is a safe and effective procedure, 50% of the patients developed AF after the procedure. However, the role of combined ablation (CTI-dependent atrial flutter plus AF) aiming at preventing AF is still uncertain. (Arq Bras Cardiol. 2020; [online].ahead print, PP.0-0).
- Subjects :
- Atrial Fibrillation etiology
Atrial Fibrillation prevention & control
Atrial Flutter diagnosis
Atrial Flutter epidemiology
Catheter Ablation methods
Humans
Prevalence
Recurrence
Retrospective Studies
Treatment Outcome
Atrial Fibrillation epidemiology
Atrial Flutter surgery
Catheter Ablation adverse effects
Subjects
Details
- Language :
- English; Portuguese
- ISSN :
- 1678-4170
- Volume :
- 114
- Issue :
- 5
- Database :
- MEDLINE
- Journal :
- Arquivos brasileiros de cardiologia
- Publication Type :
- Academic Journal
- Accession number :
- 32236324
- Full Text :
- https://doi.org/10.36660/abc.20190238