Conclusion
This prospective, randomized controlled study demonstrated that novel
ablation catheter equipped with MEs was advantageous for reducing the
number of RF attempts and initial ablation time to achieve effective
ablation endpoints for AVNRT or AVRT/WPW syndrome. High-resolution
mapping with improved efficacy to visualize pathway potentials by MEs
would be helpful for precise localization of ablation target in RFA of
PSVTs.