ArticleJournal of arrhythmia2021
A new interpretation of nonpulmonary vein substrates of the left atrium in patients with atrial fibrillation.
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 9 papers.
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Who cites it
9 citing papers in PubMed.
- Spatiotemporal Stability of Persistent Atrial Fibrillation Sources: Stable Source or Disease Progression?Journal of cardiovascular development and disease · 2026Article
- High-density evaluation of the arrhythmogenic substrate in persistent atrial fibrillation.Heart rhythm O2 · 2025Article
- Association between left atrial low-voltage area and induction and recurrence of macroreentrant atrial tachycardia in pulmonary vein isolation for atrial fibrillation.Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2024Article
- Catheter Ablation of Persistent AF-Where are We Now?Reviews in cardiovascular medicine · 2023Review
- Procedural Feasibility and Long-Term Efficacy of Catheter Ablation of Atypical Atrial Flutters in a Wide Spectrum of Heart Diseases: An Updated Clinical Overview.Journal of clinical medicine · 2022Review
- Early Echocardiographic Predictors for Atrial Fibrillation Propensity: The Left Atrium Oracle.Reviews in cardiovascular medicine · 2022Review
- Tailoring the Ablative Strategy for Atrial Fibrillation: A State-of-the-Art Review.Cardiology research and practice · 2022Review
- Intra-atrial activation pattern is useful to localize the areas of non-pulmonary vein triggers of atrial fibrillation.PloS one · 2022Article
- A new interpretation of nonpulmonary vein substrates of the left atrium in patients with atrial fibrillation.Journal of arrhythmia · 2021Article
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Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundSubstrate analysis of the left atrium in patients undergoing atrial fibrillation ablation has limitations when performed by means of simple bipolar acquisition.
objectiveTo evaluate the incidence of low-voltage zones (LVZs) through maps constructed by means of various catheters: multipolar (MC), omnipolar (OC), and circular catheters (CMCs) with the 3D electro-anatomical systems (3d-S) CARTO3 and EnSite Precision.
methodsTo assess LVZs, we acquired maps by means of CMC and MC in the voltage range 0.05-0.5 mV in 70 consecutive patients in sinus rhythm. In the case of OC only, we made an intra-patient comparison of bipolar maps constructed by means of the along and across, and HD-Wave configurations of the EnSite 3d-S in the ranges of 0.05-0.5 and 0.5-1.0 mV. On the basis of this comparison, we chose the range that best identified LVZs as a set of different colors (SDC) compatible with patchy fibrosis (qualitative analysis). Subsequently, we detected the voltage values corresponding to purple and gray points, close to SDC, and the value inside corresponding to blue, green, and red colors, and we evaluated the color change in other voltage ranges. Finally, we performed a quantitative analysis of LVZs by applying the qualitative characteristics described above.
resultsOn the basis of our settings, for OC, the optimal range identifying LVZs was 0.3-0.6 mV. OC revealed smaller LVZs than MC (
conclusionsIn our experience, OC does not present the limits of bipolar HD maps, though further studies are needed in order to confirm that 0.3-0.6 mV is the optimal voltage range within which to identify LVZs.
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