ArticleJournal of arrhythmia2021
Optimized lesion size index (o-LSI): A novel predictor for sufficient ablation of pulmonary vein isolation.
Article in Journal of arrhythmia, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Feasibility and Safety of High-Power Settings for Electrical Isolation of the Superior Vena Cava Using a Catheter Capable of Local Impedance and Contact Force Monitoring.Journal of arrhythmia · 2026Article
- Efficacy of High-Density Three-Dimensional Mapping for Verapamil-Sensitive Left Posterior Fascicular Ventricular Tachycardia in Pediatric Patients.Pediatric cardiology · 2024Article
- Evaluation and comparison of impedance and amplitude changes in lesion index-guided pulmonary vein isolation.Journal of arrhythmia · 2024Article
- Lesion size indices for cavotricuspid isthmus ablation: superior or superfluous?Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2023Article
- Comparison of the empirical linear ablation and low voltage area-guided ablation in addition to pulmonary vein isolation in patients with persistent atrial fibrillation: a propensity score-matched analysis.BMC cardiovascular disorders · 2022Article
- Quantitative late gadolinium enhancement cardiac magnetic resonance analysis of the relationship between ablation parameter and left atrial tissue lesion following pulmonary vein isolation.Frontiers in cardiovascular medicine · 2022Article
- Optimized lesion size index (o-LSI): A novel predictor for sufficient ablation of pulmonary vein isolation.Journal of arrhythmia · 2021Article
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Authors and funding
14 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAlthough the lesion size index (LSI) has been well established, it is sometimes difficult to achieve first-pass pulmonary vein isolation (PVI) and to avoid acute pulmonary vein reconnections, even with LSI-guided procedures. The purpose of this study was to assess the predictive accuracy of a novel parameter, the optimized lesion size index (o-LSI), to perform PVI.
methodsThe voltage maps created by the Advisor™ high-density (HD) grid catheter before PVI in 35 atrial fibrillation (AF) patients were examined for an association between the voltage amplitude and insufficient ablation sites (IAS), which were defined as either (i) spontaneous reconnection sites, (ii) dormant PV conduction sites unmasked with 20 mg of adenosine triphosphate disodium hydrate (ATP) injection, or (iii) PV-LA gap sites after the initial PVI.
resultsIAS was observed in 25/1417 of the total ablation sites. IAS was significantly associated with higher bipolar voltage areas (4.20 ± 2.68 vs 2.43 ± 1.93 mV,
conclusionLow o-LSI was strongly associated with IAS, potentially providing a novel index to improve first-pass PV isolation.
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