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Arrhythmias & electrophysiologyCohort study

Delineation of conduction gaps of linear lesions during atrial fibrillation ablation using ultra-high-density mapping

EuropacePublished

  • Retrospective study
  • ultra-high-density mapping (RHYTHMIA)
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Authors' conclusion

The entrances and exits of electrical conduction gaps were separated, especially in the roof region, indicating that epicardial conduction might contribute to gap formation.

Study context

Population
Patients with conduction gaps along pulmonary vein (PV) isolation or box ablation lesions during AF ablationmaps in 31 patients
Participants
34 patients
Exposure
Gap length by lesion region
  • Boxn = 21
  • PVIn = 13

Main finding

As reported in the abstract

Gap length (entrance–exit distance)

Roof region (box) vs Bottom region (box): P = 0.022 · Right PV (PVI) vs Left PV (PVI): P = 0.201

Observational data: associations, not effects.

Further findings

events

OutcomeRoof region (box)Bottom region (box)Right PV (PVI)Left PV (PVI)
Gap locations91294

Original publication

Delineation of conduction gaps of linear lesions during atrial fibrillation ablation using ultra-high-density mapping. Europace. Published 3 July 2023. doi:10.1093/europace/euad188
Read the original article ↗PubMedCite RIS · BibTeX

Summarised from the published abstract; every number is checked against it