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Updated: Oct 10, 2025

Remote Magnetic Navigation for Accurate, Real-time Catheter Positioning and Ablation in Cardiac Electrophysiology Procedures
Published on: April 21, 2013
Catheter knot around the mitral valve apparatus: An exceptional complication of remote magnetic navigation
Karim Benali1,2, Nefissa Hammache2,3, Jean-Marc Sellal2,3
1Department of Cardiology, Saint-Etienne University Hospital, Saint-Priest-En-Jarez, France.
Abstract:
Remote magnetic navigation (RMN) is as safe and effective as manual navigation for catheter ablation of ventricular arrhythmias. This case is the first description of a soft-tip ablation catheter entrapment in the mitral valve apparatus during an RMN ablation procedure. The tight knot created by the catheter around a mitral valve chordae required surgical removal. This complication, which has never been reported before, highlights the need for closer fluoroscopic monitoring when performing catheter loops inside the ventricles when using the RMN system.
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