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Higher burden of supraventricular ectopic complexes early after catheter ablation for atrial fibrillation is associated with increased risk of recurrent atrial fibrillation
Herlev Gentofte University Hospital, Denmark.
Herlev Gentofte University Hospital, Denmark.
Hvidovre University Hospital, Denmark.
Herlev Gentofte University Hospital, Denmark.
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2018 (English)In: Europace, ISSN 1099-5129, E-ISSN 1532-2092, Vol. 20, no 1, p. 50-57Article in journal (Refereed) Published
Abstract [en]

Aims Early identification of patients who could benefit from early re-intervention after catheter ablation is highly warranted. Our aim was to investigate the association between post-procedural burden of supraventricular ectopic complexes (SVEC) and the risk of long-term atrial fibrillation (AF) recurrence. Methods and results A total of 125 patients undergoing catheter ablation for AF were included. Patients underwent 7-day Holter recordings immediately post-procedural. The number of SVEC in post-procedural Holter recordings was categorized into quartiles: 0-72, 73-212, 213-782 and amp;gt;= 783 SVEC/day. Long-term AF recurrence was defined as a combined endpoint of AF amp;gt;= 1 min during follow-up Holter recordings, cardioversion or hospitalization for AF after a 3-month blanking period and within 24 months of follow-up. High post-procedural supraventricular ectopy burden was associated with an increased risk of long-term AF recurrence in a dose-dependent manner (amp;gt;= 783 SVEC: HR 4.6 [1.9-11.5], P amp;lt; 0.001) irrespective of AF recurrence during the blanking period or other risk factors. In patients with early AF recurrence amp;lt; 90 days after catheter ablation ectopy burden was also highly predictive of long-term AF recurrence (SVEC amp;gt;= 213: HR 3.0 [1.3-6.7], P = 0.007). Correspondingly, patients with early AF recurrence but low ectopy burden remained at low risk of long-term AF recurrence after the blanking period. Conclusion Our results indicate that post-procedural ectopy burden is highly associated with long-term AF recurrence and could be a potent risk marker for selection of patients for early re-ablation. Development of future ablation risk stratification and strategies should include focus on post-procedural ectopy burden.

Place, publisher, year, edition, pages
OXFORD UNIV PRESS , 2018. Vol. 20, no 1, p. 50-57
Keyword [en]
Arrhythmia; Atrial fibrillation; Treatment; Recurrence; Atrial premature complexes
National Category
Cardiac and Cardiovascular Systems
Identifiers
URN: urn:nbn:se:liu:diva-144568DOI: 10.1093/europace/euw329ISI: 000419659300009PubMedID: 28011799OAI: oai:DiVA.org:liu-144568DiVA: diva2:1178279
Note

Funding Agencies|Gerda and Aage Haenschs Foundation; Hans og Nora Buchards Foundation; Jens Anker Andersen Foundation; Classenske Fideicommi Foundation

Available from: 2018-01-29 Created: 2018-01-29 Last updated: 2018-01-29

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Walfridsson, Håkan
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Division of Cardiovascular MedicineFaculty of Medicine and Health SciencesDepartment of Cardiology in Linköping
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