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Published on: August 25, 2022
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Radiofrequency Current Versus Balloon-Based Ablation for Atrial Fibrillation
Ruiko Seki1, Takahiko Nagase1, So Asano1
1Department of Cardiology, Sakakibara Heart Institute, Tokyo, Japan.
The American Journal of Cardiology
|July 11, 2022
Summary
This study compared four pulmonary vein isolation (PVI) ablation technologies for atrial fibrillation (AF). All methods were safe and effective for PVI, with variations in procedure time and complications.
Area of Science:
- Cardiology
- Electrophysiology
- Medical Devices
Background:
- Pulmonary vein isolation (PVI) is a key treatment for atrial fibrillation (AF).
- The optimal ablation technology for PVI remains debated.
- Cryoballoon (CB) is frequently used, but comparisons with other modalities are limited.
Purpose of the Study:
- To compare procedural data and long-term efficacy of four PVI ablation technologies.
- To evaluate radiofrequency current (RFC), cryoballoon (CB), hot balloon (HB), and laser balloon (LB) in a propensity score-matched cohort.
- To identify differences in procedure time, complications, and freedom from atrial tachyarrhythmia recurrence.
Main Methods:
- A propensity score-matched analysis of 819 patients undergoing PVI for AF.
- Comparison of procedural metrics and outcomes between RFC, CB, HB, and LB groups.
- Mean follow-up of 21 months to assess freedom from atrial tachyarrhythmia recurrence.
Main Results:
- Procedure times were significantly shorter for CB and HB compared to RFC and LB.
- Phrenic nerve injury was more frequent in the CB group.
- No significant differences were observed in freedom from atrial tachyarrhythmia recurrence across the four groups (76-78% at 21 months).
Conclusions:
- All four ablation technologies are safe and effective for PVI in AF patients.
- Procedural efficiency and complication profiles vary among the technologies.
- Patient selection may be influenced by specific procedural characteristics and institutional experience.
