Comparison of cryoablation catheter and radiofrequency ablation for treating atrioventricular nodal reentrant tachycardia
10.3969/j.issn.1004-8812.2017.05.004
- VernacularTitle:冷冻导管消融与射频消融治疗房室结折返性心动过速对比分析
- Author:
Chi MIAO
;
Yuanyuan ZHAO
;
Guofeng WANG
;
Xiangshan XU
;
Shaobo ZHOU
;
Yuanzhe JIN
- Keywords:
Atrioventricular nodal reentrant tachycardia;
Cryoablation catheter ablation;
Radiofrequency ablation
- From:
Chinese Journal of Interventional Cardiology
2017;25(5):261-265
- CountryChina
- Language:Chinese
-
Abstract:
Objective By comparing the efficacy and complication rates of the 8-mm-tip cryoablation catheter with the normal electrode ablation catheter in the treatment of atrioventricular nodal reentrant tachycardia,this study investigated the efficacy and feasibility of ablation with the 8-mm-tip cryoablation catheter.Methods This is a retrospective case-control study including 122 patients with AVNRT treated with CRYO (n =56) using an 8-mm-tip cryoablation catheter or RF ablation (n =66) from June 2014 to May 2016.The procedure success rate,the recurrence rate,atrioventricular block incidence,procedure time and the difference between the X-ray fluoroscopy dose were compared between the 2 groups.Results The procedure success rate was comparable between the 2 groups(100％ for CRYO vs.98.5％ for RF,P ＞0.999)and no AVB was found in both groups.The CRYO group needed shorter procedural time [(66.29±4.72)min vs.(70.00 ± 7.50) min,P =0.001] and less X-ray exposure [(674.14 ± 126.12) mSv vs.(837.52 ± 138.38) mSv,P ＞ 0.001] than the RF group.Conclusions 8-mm-tip cryoablation catheter cryoablation for atrioventricular nodal reentrant tachycardia is as safe and effective as compared to conventional radiofrequency ablation with potential advantages.
