Arq. Bras. Cardiol. 2025; 122(5): e20250078
How to Compare Clinical Outcomes between Cryoablation and Radiofrequency Ablation in Patients with Atrioventricular Nodal Reentrant Tachycardia?
Naoya Kataoka, Teruhiko Imamura
To Editor
The ablation of atrioventricular nodal reentrant tachycardia (AVNRT) using cryoablation has emerged as a viable alternative to radiofrequency (RF) ablation due to its reduced risk of inducing permanent atrioventricular block. However, this technique necessitates specific procedural considerations to minimize the recurrence of arrhythmias. The authors conducted a comparative analysis of clinical outcomes between cryoablation and conventional RF ablation, demonstrating that cryoablation was associated with reduced fluoroscopy time and was non-inferior to RF ablation in terms of efficacy and procedural feasibility for AVNRT management. Nonetheless, several critical concerns merit further discussion.
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Keywords: Cryosurgery; Radiofrequency Ablation; Tachycardia
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