ArticleClinical cardiology2021
Defibrillation threshold of internal cardioversion prior to ablation predicts atrial fibrillation recurrence.
Article in Clinical cardiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 3 citations in OpenAlex.
- Efficacy of an alternative positioning of intracardiac defibrillation catheters in atrial fibrillation ablation.Journal of arrhythmia · 2025Article
- Optimal patient selection for maze procedure in patients undergoing mitral valve disease.Journal of cardiothoracic surgery · 2024Article
- Defibrillation threshold of internal cardioversion prior to ablation predicts atrial fibrillation recurrence.Clinical cardiology · 2021Article
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundMany studies have reported the predictors of atrial fibrillation (AF) recurrence after persistent AF (peAF) ablation. However, the correlation between the atrial defibrillation threshold (DFT) for internal cardioversion (IC) and AF recurrence rate is unknown. Here we investigated the relationship between the DFT prior to catheter ablation for peAF and AF recurrence. HYPOTHESIS: DFT prior to ablation was the predictive factor for AF recurrence after peAF ablation.
methodsFrom June 2016 to May 2019, we enrolled 82 consecutive patients (mean age, 65.0 ± 12.4 years), including 45 with peAF and 37 with long-standing peAF, at Hamamatsu Medical Center. To assess the DFT, we performed IC with gradually increasing energy prior to radiofrequency application.
resultsForty-nine and 33 patients showed DFT values less than or equal to 10 J (group A) and greater than 10 J or unsuccessful defibrillation (group B). During the mean follow-up duration of 20.5 ± 13.1 months, patients in group B showed significantly higher AF recurrence rates than those in group A after the ablation procedure (p = .017). Multivariate analysis revealed that DFT was the only predictive factor for AF recurrence (odds ratio, 1.07; 95% CI, 1.00-1.13, p = .047).
conclusionsThe DFT for IC was among the strongest prognostic factors in the peAF ablation procedure.
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