Long-term outcomes of remote magnetic navigation for ablation of supraventricular tachycardias

Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing
Sung-Hwan KimTai-Ho Rho

Abstract

Little is known about the long-term outcomes of catheter ablation of supraventricular tachycardia (SVT) using remote magnetic navigation system (RMN). One hundred twenty patients underwent catheter ablation of SVTs with RMN (Niobe, Stereotaxis, USA): atrioventricular nodal re-entrant tachycardia (AVNRT; n = 59), atrioventricular re-entrant tachycardia (AVRT; n = 45), and focal atrial tachycardia (AT, n = 16). The outcome of AVRT with right free wall accessory pathway was compared with those of a group of 26 consecutive patients undergoing manual ablation. Mean follow-up period was 2.2 ± 1.4 years. Overall arrhythmia-free survival was 86%; AVRT (77%), AVNRT (96%), and focal AT (71%). After the learning period (initial 50 cases), procedural outcomes had improved for AVRT and AVNRT (91% in overall group, 90% in AVRT group, 100% in AVNRT group, and 68% in focal AT group). The recurrence-free rate was higher for the free wall accessory pathways than those of the other sites (92 vs. 73%, log-rank P = 0.06). Furthermore, when it is confined for the right free wall accessory pathway, RMN showed excellent long-term outcome (7/7, 100 %) compared to the results of manual approach (18/26, 69.2%, log-rank P = 0.07). RMN showed favorable lon...Continue Reading

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Citations

Aug 30, 2017·Clinical Research in Cardiology : Official Journal of the German Cardiac Society·Tilko ReentsGabriele Hessling
Feb 6, 2020·Journal of Cardiovascular Electrophysiology·Guillaume BassilJim W Cheung
Oct 11, 2016·Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing·J David Burkhardt

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