The Effectiveness of Hybrid Magnetic/ Electrical Impedance Based Cardiac Mapping

Abstract

This retrospective study examines whether SE catheters improve the success rate or decrease the risks compared to Biosense Thermocool catheters (Biosense Webster Inc., Irvine, California) not employing sensor-enabled technology utilizing NavX EnSite Precision algorithms. EnSite Precision technology (Abbott, Chicago, Illinois) is a novel mapping and navigation system facilitating the visualization and manipulation of intracardiac catheters during arrhythmia ablation procedures. The mapping system employs electrical impedance and magnetic data in conjunction with Sensor Enabled (SE) catheters (Abbott, Chicago, Illinois) to provide more precise mapping and navigation. It is uncertain if this results in improved clinical outcomes.  Charts of 146 patients who underwent radiofrequency ablations for supraventricular and ventricular arrhythmias between 2016 and 2019 at the Beirut Cardiac Institute were reviewed and analyzed. SE catheters have the same success rates compared to standard catheters using the EnSite Precision mapping system. However, SE catheters were associated with a lower rate of transient conduction blocks. Further prospective studies should be conducted regarding this matter.