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Pulsed field ablation: focused on atrial fibrillation ablation

Hong-Ju Kim1, Chan-Hee Lee1

  • 1Division of Cardiology, Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Korea.

The Korean Journal of Internal Medicine
|December 4, 2025
PubMed

Insights

Pulsed field ablation (PFA) offers a promising alternative for atrial fibrillation (AF) treatment. This novel catheter ablation technique shows potential for reduced collateral damage compared to traditional thermal methods.

Area of Science:

  • Cardiology
  • Medical Devices
  • Electrophysiology

Background:

  • Atrial fibrillation (AF) is a prevalent arrhythmia with significant healthcare implications.
  • Catheter ablation is a key treatment for AF patients refractory to drugs or with reduced ejection fraction.
  • Conventional ablation methods include radiofrequency ablation (RFA) and cryoablation.

Purpose of the Study:

  • To review the biophysical principles of pulsed field ablation (PFA).
  • To discuss the clinical applications and outcomes of PFA.
  • To compare the safety and efficacy of PFA against thermal ablation techniques.

Main Methods:

  • Literature review of pulsed field ablation (PFA) principles and clinical studies.
  • Comparative analysis of PFA versus radiofrequency ablation (RFA) and cryoablation.
  • Summary of safety and efficacy data from existing PFA research.

Main Results:

  • PFA utilizes electrical fields for tissue ablation, demonstrating high specificity.
  • Early clinical data suggest PFA has a favorable safety profile with minimal collateral damage.
  • PFA efficacy in treating atrial fibrillation is comparable to established thermal methods.

Conclusions:

  • Pulsed field ablation (PFA) represents a significant advancement in catheter ablation technology for atrial fibrillation.
  • Its tissue-specific mechanism offers potential advantages in reducing procedure-related complications.
  • Further research and widespread clinical adoption are anticipated for PFA.

Keywords:
Atrial fibrillationCatheter ablationConventional thermal ablationPulsed field ablationRhythm control

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