Objective To evaluate the efficacy and safety of the domestic Columbus®2.0 three-dimension(3D)cardiac electrophysiological mapping system and its supporting catheter in the treatment of tachyarrhythmias through a prospective,multi-center and single-arm study.Methods We selected 50 consecutive patients with tachyarrhythmias from 4 electrophysiological centers of Shanghai;20 patients(40.0％)are males,the mean age of patients is(55.38±18.14)years old.Radiofrequency ablation was performed on these patients guided by Columbus®2.0 system and its supporting catheter.The immediate success rate,operation time,X-ray exposure time and dose,and adverse events were recorded.All the patients were followed up for 6 months.Results There are 34 patients with atrioventricular nodal reentry tachycardia,11 cases with atrioventricular reentry tachycardia,one with atrial tachycardia,one with typical atrial flutter,and 3 patients with premature ventricular contraction.The immediate success rate of the procedure is 100％;no catheter ablation related adverse event occurs during the perioperative period.The average operation time is 114.00(89.75,166.25)min,the average X-ray exposure time is 5.90(3.78,8.07)min,and the average X-ray exposure dose is 23.96(8.00,50.00)mGy.There is no recurrence during 6 months of follow-up.Conclusion The efficacy and safety of Columbus® 2.0 3D cardiac electrophysiological mapping system and its supporting catheter is satisfying in treating tachyarrhythmias,especially supraventricular arrhythmias.
维普
万方数据