Comparison of cryoablation and radiofrequency ablation for treating atrioventricular nodal reentrant tachycardia

VernacularTitle:房室结折返性心动过速冷冻消融与射频消融治疗对比分析
Author: Ya-Hui DING ¹ ; Bai-Ming QU ; Xian-Da CHE ; Jian-Wu YU ; Chang-Hua WANG ; Hui WANG
Author Information

1. 浙江省人民医院
Keywords: Tachycardia,atrioventricular nodal reentry; Catheter ablation
From: Chinese Journal of Cardiology 2011;39(7):625-627
CountryChina
Language:Chinese
Abstract: Objective To compare the efficacy and safety between cryoablation (Cryo) and radiofrequency (RF) ablation for treating patients with atrioventricular nodal reentrant tachycardia (AVNRT). Methods Patients with AVNRT (n=304) were divided into Cryo group (n=67) and RF group (n=237). The procedure success rate, complete slow pathway block rate, atrioventricular block rate and relapse rate were compared between two groups. Results There was no statistically difference between 2 groups in the success rate (Cryo group 98.5% vs RF group 97.0%, P=0.820), complete slow pathway block rate (Cryo group 98.5% vs RF group 91.6%, P=0.088), atrioventricular block rate (Cryo group 0 vs RF group 2.5%, P=0.413), relapse rate (Cryo group 0 vs RF group 1.7%, P=0.643). But Cryo group had more advantage than RF group. Conclusion Efficacy and safety were comparable between cryoablation and radiofrequency ablation for treating patients with AVNRT.