Clinical Analysis on Radiofrequency Catheter Ablation for Patients with Tachycardia

Objective To analyze the outcomes of patients with tachycardia who underwent radiofrequecy catheter ablation and provide guidelines for further clinical works.Methods The clinical experiences of radiofrequency catheter ablation for patients with tachycardia in our department during 15 years were summarized.The clinical outcomes of 1847 patients with tachycardia who underwent radiofrequency catheter ablation were retrospectively analyzed.Results There were 810 patients with AVRT who had 869 accessory pathways,among them,532 cases with left accessory pathways,278 cases with right accessory pathways,15 cases with bilateral accessory pathways,and 21 cases with dual A-V nodal pathways and accessory pathways.There were also 753 patients with atrioventricular nodal reentrant tachycardia(AVNRT),139 patients with ventricular tachycardia(VT) and premature ventricular beats,29 patients with atrial tachycardia(AT),32 patients with atrial flutter(AF),84 patients with atrial fibrillation(A)f enrolled in this study.The overall success rate was 97.67%,in which radiofrequency catheter ablation of paroxysmal supraventricular tachycardia mediated by dual atrioventricular nodal and accessory pathway had a higher success rate(above 99%).The recurrence rate was 2.22% after radiofrequency catheter ablation.The incidence of complication s was 3.14%.Only one patient was implanted with pacemaker due to complete atrioventricular block.No patients died.Conclusion Radiofrequency catheter ablation is an effective and safe therapeutic method with high success rate,low incidence of complications,and low recurrence rat for patients with tachycardia,especially for patients with AVNRT and AVRT.It is the optimical therapy for patients with tarchycardia.