Arrhythmias & electrophysiologyCohort study
Feasibility of mapping and ablation of scar-related atrial flutter using a novel high-density 3-dimensional electroanatomic mapping system
- single-center retrospective study
- consecutive patients
Authors' conclusion
The study results demonstrate the feasibility of the Affera 3-dimensional electroanatomic mapping system to successfully map and ablate scar-related AFLs.
Study context
- Population
- Patients who underwent high-density mapping and catheter ablation of scar-related atrial flutter (AFL) using the Sphere-9 catheter and Prism-1 software (Affera mapping and ablation system)patients included
- Participants
- 65 patients
- Outcome
- Termination of the AFL at the initial ablation site or within the surrounding area
Main finding
As reported in the abstract
Termination of the clinical AFL at the initial ablation site or surrounding area
79.4% of patients
Observational data: associations, not effects.
Secondary outcomes
Previous atrial fibrillation ablation (≥1 procedure)
- Had undergone ≥1 previous atrial fibrillation ablation procedure
- 87.7%
Mapping time and points acquired on activation maps
- Median mapping time
- 8 minutes (6-10)
- Median number of points, right atrium
- 835 (510-1175)
- Median number of points, left atrium
- 1859 (1418-2531)
Termination of AFL with ablation at any site (secondary)
- Achieved in all patients
AFL recurrence (secondary) · median follow-up of 69 days (49-116)
- AFL recurrence
- 15% of patients
Original publication
Feasibility of mapping and ablation of scar-related atrial flutter using a novel high-density 3-dimensional electroanatomic mapping system. Heart Rhythm. Published 19 June 2026. doi:10.1016/j.hrthm.2026.06.015
Summarised from the published abstract; every number is checked against it