Electroanatomic mapping for radiofrequency ablation of cardiac arrhythmias

Nonfluoroscopic Mapping for Cardiac Arrhythmias. Radiofrequency catheter ab lation is the current treatment of choice for several cardiac arrhythmias. The conventional approach utilizing intracardiac electrograms during sinus rhythm and during tachycardia has inherent limitations including limited tw o-dimensional fluoroscopic imaging and the ability to evaluate several pote ntial sites for ablation and to go precisely to the most suitable site. Rec ently, a nonfluoroscopic three-dimensional electroanatomic system has been developed for mapping arrhythmias. We describe in this report the advantage of utilizing the system in facilitating a successful outcome in three pati ents with different arrhythmias.