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The Niobe® magnetic navigation system can be used to access all chambers of the heart.  The scientific publication below highlights the favorable outcomes for the treatment of supraventricular tachycardias using the magnetic navigation system.

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

Kim SH, Oh YS, Kim DH, Choi IJ, Kim TS, Shin WS, Kim JH, Jang SW, Lee MY, Rho TH.
J Interv Card Electrophysiol. 2015 Mar 18. [Epub ahead of print]
Highlights:
  • The paper showed favorable long-term outcomes for the ablation of supraventricular tachycardias using remote magnetic navigation system (RMN). 
  • RMN-guided ablation may be associated with a higher success rate as compared to manual ablation when treating right-sided free wall pathways.

Abstract

BACKGROUND
Little is known about the long-term outcomes of catheter ablation of supraventricular tachycardia (SVT) using remote magneticnavigation system (RMN).

METHODS
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.

RESULTS
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).

CONCLUSIONS
RMN showed favorable long-term outcomes for the ablation of SVT. In our experience, RMN-guided ablation may be associated with a higher success rate as compared to manual ablation when treating right-sided free wall pathways.

 

For more information on clinical publications, email info@stereotaxis.com.

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