부산대학교 도서관

Introduction: We evaluated facilities of the novel 3D surface ECG based mapping technology in patients with different atrial and ventricular arrhythmias.Methods: Before procedure noninvasive mapping using 240-lead ECG combined with CT scan based anatomy (Amycard, RUS) was performed in 82 patients. Amoung them 37 patients (mean age 35,1±14,9 years) were with ectopic non-ischemic ventricular arrhythmias (VT/PVC), 35 patients (mean age 30,8±10,7 years) with WPW syndrome, 10 patients (mean age 46,7±17,1 years) with ectopic atrial tachycardias. The findings were compared with invasive 3D mapping and successful radiofrequency ablation.Results: In 35 patients with ventricular arrhythmias (94,6%) a location of ectopic focus was similar to the invasive data and arrhythmia was successfully eliminated by single radiofrequency (RF) application. Two focal VT (5,4%) located in interventricular septum coud not be accurately identified by noninvasive mapping. Clinical target coincided in 45 (100%) patients with WPW syndrome and atrial tachycardis and successfully terminated by RF ablation. Mean distance between noninvasive target and effective point of ablation was 3,4±2,5 mm. Time of fluoroscopy in group of patients that underwent noninvasive mapping was significantly lower 4,1±2,5 min in comparison with average 10,3±4,9 min (p<0,05).Conclusion: Initial experience with a novel noninvasive 3D mapping system shows its clinical utility in various arrhythmias, feasibility of accurately locating the target and significant reduction of fluoroscopy and procedure time.