Pulsed-field ablation improves lesion durability despite comparable arrhythmia recurrence after pulmonary vein isolation

Q: What is the clinical evidence from this study?

Study design: Observational. Population: Arrhythmia. Intervention: Pulsed-field ablation (PFA) vs. Cryoballoon ablation (CBA) and radiofrequency ablation (RFA). Primary outcome: Pulmonary vein durability and clinical arrhythmia recurrence.

Q: What does this research mean for the field?

Pulsed-field ablation improves pulmonary vein isolation lesion durability compared to thermal ablation despite producing comparable rates of clinical arrhythmia recurrence. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

Fabian Jordan; Arianna Sofia Bettelini; Céline Moser; Corinne Isenegger; Reto Stump; Sven Knecht; David Spreen; Philipp Krisai; Nicolas Schärli; Felix Mahfoud; Christian Sticherling; Michael Kühne; Patrick Badertscher

doi:10.1016/j.hrthm.2026.08.050

September 1, 2026Heart RhythmOpen Access

Pulsed-field ablation improves lesion durability despite comparable arrhythmia recurrence after pulmonary vein isolation

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Key result

PFA is linked to superior lesion durability over cryoballoon and radiofrequency ablation, despite similar arrhythmia recurrence.

Graphical abstract published by Heart Rhythm — Graphical abstract · Published by Heart Rhythm · CC BY 4.0

Why the study?

The relationship between improved pulmonary vein isolation lesion durability after pulsed-field ablation and clinical arrhythmia recurrence remains incompletely understood.

Does pulsed-field ablation improve lesion durability and reduce clinical arrhythmia recurrence compared to cryoballoon and radiofrequency ablation in patients undergoing pulmonary vein isolation?

Key Points

To evaluate pulmonary vein isolation durability and examine its relationship with clinical arrhythmia recurrence across pulsed-field ablation, cryoballoon ablation, and radiofrequency ablation.
Compared pulmonary vein durability and arrhythmia recurrence outcomes across pulsed-field ablation, cryoballoon ablation, and radiofrequency ablation.
Pulsed-field ablation produced greater pulmonary vein isolation durability compared with thermal ablation modalities.
Rates of clinical arrhythmia recurrence were comparable between pulsed-field ablation and thermal ablation despite the superior lesion durability achieved with pulsed fields.

Study Design

Type

Observational

Structured PICO

Does pulsed-field ablation improve lesion durability and reduce clinical arrhythmia recurrence compared to cryoballoon and radiofrequency ablation in patients undergoing pulmonary vein isolation?

P

Population

Patients undergoing pulmonary vein isolation

E

Exposure

Pulsed-field ablation (PFA)

C

Comparator

Cryoballoon ablation (CBA) and radiofrequency ablation (RFA)

O

Outcome

Pulmonary vein (PV) durability and clinical arrhythmia recurrence

Pulsed-field ablation demonstrates superior pulmonary vein lesion durability compared to thermal ablation, though this does not appear to translate into a reduction in clinical arrhythmia recurrence.

Implication

PFA's greater PVI durability may not reduce clinical recurrence; leaves open optimal endpoints for future ablation trials.

Abstract

While prior studies have demonstrated comparable efficacy of pulsed-field ablation (PFA) relative to cryoballoon ablation (CBA) and radiofrequency ablation (RFA) using conventional arrhythmia-based endpoints1–4, 5greater PVI durability after PFA compared with thermal ablation has been demonstrated. However, the relationship between this improved lesion durability and clinical arrhythmia recurrence remains incompletely understood. We therefore evaluated PV durability in the context of clinical arrhythmia recurrence across PFA, CBA, and RFA.

Discussion

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Cite This Study

Jordan et al. (2026) conducted an observational in Arrhythmia. Pulsed-field ablation (PFA) vs. Cryoballoon ablation (CBA) and radiofrequency ablation (RFA) was evaluated on Pulmonary vein durability and clinical arrhythmia recurrence. Pulsed-field ablation improved lesion durability despite comparable clinical arrhythmia recurrence compared to cryoballoon and radiofrequency ablation.

synapsesocial.com/papers/6ad0fce415427f6a840403de https://doi.org/10.1016/j.hrthm.2026.08.050

Topics

AF ablation outcomes

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Pulsed-field ablation improves lesion durability despite comparable arrhythmia recurrence after pulmonary vein isolation

Key Points

Study Design

Structured PICO

Implication

Abstract

Discussion

Cite This Study

Topics

Pulsed-field ablation improves lesion durability despite comparable arrhythmia recurrence after pulmonary vein isolation

Key Points

Study Design

Structured PICO

Implication

Abstract

Discussion

Cite This Study

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