ArticleJournal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing2021
High-density versus low-density mapping in ablation of atypical atrial flutter.
Article in Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 20 citations in OpenAlex.
- Mapping Efficiency of an Octaspline Versus Pentaspline Multielectrode Catheter for High-Density Mapping of Regular Atrial Tachyarrhythmias: A Multicenter Randomized Cross-Over Trial.Journal of cardiovascular development and disease · 2026Article
- Atypical atrial flutter ablation: clinical practice on patient selection, mapping, ablation strategies, and procedural endpoints-results from a European Heart Rhythm Association survey.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2025Article
- Atypical atrial flutter ablation: follow-up and predictors of arrhythmia recurrence.Heart and vessels · 2024Article
- Outcome after ablation of atypical atrial flutter: Is induction a feasible approach?International journal of cardiology. Heart & vasculature · 2024Article
- Association between high-density mapping of atypical atrial flutter, clinical outcomes and healthcare utilization.Journal of cardiovascular electrophysiology · 2024Article
- Clinical impact of high-density mapping on the acute and long term outcome of atypical atrial flutter ablations.Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2024Article
- Atypical atrial flutter catheter ablation in the era of high-density mapping.Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2023Article
- A Grid Search of Fibrosis Thresholds for Uncertainty Quantification in Atrial Flutter Simulations.Computing in cardiology · 2023Article
- 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
- Case report: Personalized computational model guided ablation for left atrial flutter.Frontiers in cardiovascular medicine · 2022Article
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeAblation of atypical atrial flutter (AAFL) can be challenging. High-density (HD) mapping of ablation targets may potentially increase procedural success and freedom from recurrent AAFL. The objective of the present study was to explore whether employing HD mapping leads to a more favorable outcome in ablation of AAFL.
methodsWe compared baseline and procedural characteristics, procedural success, safety and outcome of mapping and ablation of atypical flutter in three groups. (1) HD Grid catheter + the high-density electroanatomical mapping (EAM) system EnSite Precision; (2) standard 10-pole circular mapping catheter (CMC) + EnSite Precision; (3) CMC + the low-density EnSite Velocity EAM. Voltage and propagation maps were constructed.
resultsMapping of 142 AAFL in 82 patients was performed. Acute ablation success was 78%, 68%, and 51% in groups 1, 2, and 3 (p = 0.037 between group 1 and 3, non-significant between groups otherwise). Moreover, 8%, 27%, and 36% of flutters were unmappable in groups 1, 2, and 3, respectively (p < 0.05 between group 1 and both groups 2 and 3). AAFL recurrence at 1-year FU was 26%, 36%, and 62% in groups 1, 2, and 3 (p = 0.007 between groups 1 and 3, p = 0.05 between groups 2 and 3). AAFL-free survival was significantly higher in patients mapped with Precision than with Velocity (p = 0.011). No strokes or mortality occurred within 30 days.
conclusionsAcute procedural success of ablation of atypical atrial flutter is higher and the number of unmappable flutters is lower using the HD Grid mapping catheter in combination with the high-density EnSite Precision system, as compared to a decapolar circular mapping catheter and the low-density EnSite Velocity EAM system. This may lead to increased freedom from recurrent AAFL at 1 year. HD mapping is safe.
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