Efficacy And Safety Of Catheter Radiofrequency Ablation For Idiopathic Ventricular Arrhythmias Guided By Carto3 System Without Fluoroscopy

Objective: To compare the catheter radiofrequency ablation for idiopathic ventricular arrhythmia guided by CARTO3 system with or without fluoroscopy,so as to evaluate the efficacy and safety of zero fluoroscopy approach.Methods: A prospective study included 106 consecutive patients of idiopathic ventricular arrhythmias(IVA,including idiopathic premature ventricular contraction and idiopathic ventricular tachycardia)whom were hospitalized from January 2017 to March 2018 in the First Affiliated Hospital of Guangxi Medical University.The catheter radiofrequency ablation were performed under Carto3 system guidance.According to the date of operation,patients were randomly divided into two groups.Of these,39 cases operated on odd numbers were bring into the zero fluoroscopy group(ZF group),and 67 cases on double numbers were included in the fluoroscopy group(F group).All the procedures were performed with contact force catheter of Biosense Webster by 2 operators.The difference between two groups of the procedure time,first mapping time,number of ablation,ablation time,fluoroscopy time,target position,immediate success rate,complications and recurrence rate were compared.Results: There was no statistical difference in baseline data such as age,sex,course of disease and echocardiographic index between the two groups.ZF group was performed completely without fluoroscopy,and the fluoroscopy time of F group was 168.0(44.8,541.3)s.In terms of general procedure data such as the procedure time,first mapping time,number of ablation,ablation time,target position,no statistical differences was found between the two groups.In the effectiveness and safety of the operation between two groups,the immediate success rate(38(97.4%)vs 61(91.0%),p=0.383),complications [0(0%)vs 2(3.0%),p=0.530] and recurrence rate [4(10.5%)vs 5(8.2%),p=0.974] had no statistical difference.Conclusion: Catheter radiofrequency ablation for idiopathic ventricular arrhythmias guided by carto3 system without fluoroscopy was efficacy and safety.And the procedure time,first mapping time,number of ablation were not increased.