Arrhythmias & electrophysiology

Catheter Ablation vs Antiarrhythmic Drug Therapy for Atrial Fibrillation in Cardiac Amyloidosis

JACC Clin ElectrophysiolPublished Retrospective cohort study

Authors' conclusion

Catheter ablation for AF in patients with cardiac amyloidosis is associated with improved outcomes in all-cause mortality and hospitalization compared to AAD therapy.

Study context

Population
Adults (≥18 years) with atrial fibrillation (AF) and cardiac amyloidosis, TriNetX network, 2013–2021118 per group after matching
Participants
120 vs 4,749
Exposure
Catheter ablation vs AAD therapy
  • Catheter ablationn = 120
  • AADn = 4,749reference
Outcome
All-cause mortality and cardiac adverse events
Follow-up
3 years
Methodological detailspropensity-score matched, multinational
  • Propensity-score matched
  • Multinational

Main finding

As reported in the abstract

Catheter ablation vs AADOdds ratio (95% CI)
All-cause mortality
0.404(0.182–0.896)
All-cause hospitalization
0.547(0.317–0.942)
No significant difference between the 2 groups in cerebrovascular attack
OR: 1; 95% CI: 0.400-2.500
No significant difference between the 2 groups in cardiac arrest
OR: 1; 95% CI: 0.400-2.500
No significant difference between the 2 groups in acute HF
OR: 0.688; 95% CI: 0.293-1.617

Observational data: associations, not effects.

Original publication

Catheter Ablation vs Antiarrhythmic Drug Therapy for Atrial Fibrillation in Cardiac Amyloidosis. JACC Clin Electrophysiol. Published 7 November 2025. doi:10.1016/j.jacep.2025.09.029

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