Multi-center clinical trial on efficacy of nationul-made radiofrequency ablation catheter for the treatment of atrioventricular nodal reentrant tachycardia and atrioventricular reentrant tachycardia
10.3760/cma.j.issn.0253-3758.2010.01.011
- VernacularTitle:射频消融治疗房室结或房室折返性心动过速的多中心随机临床试验
- Author:
Shu-Lin WU
1
;
Xian-Hong FANG
;
Hong JIANG
;
Yan-Sheng DING
Author Information
1. 广东省人民医院
- Keywords:
Tachycardia,supraventricular;
Catheter ablation
- From:
Chinese Journal of Cardiology
2010;38(1):35-38
- CountryChina
- Language:Chinese
-
Abstract:
Objective The aim of this trial is to compare the efficacy and safety between national-made and imported ablation catheters for the treatment of atrioventricular nodal reentrant tachycardia (AVNRT) and atrioventricular reentrant tachycardia (AVRT). Method A total of 1342 patients with AVNRV or AVRT were randomly treated with national-mode ablation catheter (Group 1, n = 672) or imported ablation catheter (Group 2, n=670). Results The immediate ablation success rate was similar in Group 1 and Group 2 (97.9% vs. 99.1%, P > 0.05). There were also no significant differences in the procedure time [(68±36) min vs. (67±34 ) min], the fluoroscopic time [(14±14) min vs. (10±11) min], the number of energy delivery [(4.5±4.5) beats vs. (4.6±3.9) beats], the ablation time [(260±218) s vs. (257±207) s] and the score of ablation catheter performance evaluation[(4.4±0.5) vs. (4.5±0.4)] between the two groups (all P > 0.05). Three patients developed pericardial effusion (1 in Croup 1 and 2 in Group 2, P>0.05). Incidence of recurrence of tachycardia during the 3 months follow up was similar between the 2 groups (14 in Group1 vs. 16 in Group 2, P > 0.05). Conclusion National-made and imported radiofrequency ablation catheters have similar efficacy and safety for treatment of AVNRT and AVRT.
