ArticleJournal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing2022
Higher than recommended lesion size index target values for pulmonary vein isolation result in better clinical outcomes in paroxysmal atrial fibrillation patients.
Article in Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Does the same lesion index mean the same efficacy and safety profile: influence of the differential power, time, and contact force on the lesion size and steam pops under the same lesion index.Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2024Article
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4 authors.
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Abstract
purposeCatheter ablation is a cornerstone of the therapy for paroxysmal atrial fibrillation. The importance of effective lesion size formation during pulmonary vein isolation is gauged through conduction recovery and recurrence of arrhythmia. Therefore, the lesion size index (LSI) is designed to utilize traditional intraprocedural parameters and predict procedural success. The impact of the optimal LSI index and the respective segments of the pulmonary veins has not been commonly evaluated. We aimed to assess whether higher and targeted LSI on the different segments of pulmonary veins could actually lead to better clinical outcomes of paroxysmal atrial fibrillation ablation.
methodsRetrospective analyses of drug-refractory paroxysmal atrial fibrillation patients who underwent first catheter ablation were conducted. Targeted LSI of 6.5 at the anterior wall and 5.2 at the posterior wall, roof, and floor of the pulmonary vein was applied. The primary endpoint was defined as arrhythmias recurrence assessed by routine electrocardiograms and 24-h ambulatory electrocardiographic monitoring at 3, 6, and 12 months post-ablation.
resultsAmong the included 39 patients, the single-procedure 12-month freedom from arrhythmias was reached in 92.3% of patients. Interestingly, there was no tendency towards an increased number of adverse effects using a higher LSI index.
conclusionsAtrial fibrillation ablation guided by targeted LSI value showed efficiency on the freedom from arrhythmias during 1-year follow-up period without harmful effects.
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