Application of Carto3 three-dimensional electrophysiological mapping system in guiding radiofrequency ablation for paroxysmal supraventricular tachycardia: preliminary results
10.3969/j.issn.1008-794X.2017.06.004
- VernacularTitle:Carto3三维电生理标测在阵发性室上性心动过速射频消融术中应用的初步研究
- Author:
Shufeng ZONG
;
Yanfei LIU
;
Bin ZHANG
;
Wenhua QU
;
Yongle WANG
;
Yunliang WEI
- Keywords:
three-dimensional electrophysiological mapping;
paroxysmal supraventricular tachycardia;
radiofrequency ablation;
X-ray
- From:
Journal of Interventional Radiology
2017;26(6):492-495
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the feasibility,effectiveness and safety of Carto3 three-dimensional electrophysiological mapping system in guiding radiofrequency ablation (RFA) for paroxysmal supraventricular tachycardia (PSVT).Methods The clinical data of a total of 28 patients with PSVT (Carto group),who received RFA guided by Carto3 three-dimensional electrophysiological mapping system during the period from March 2015 to February 2016,were retrospectively collected.Other 36 parents with PSVT,who received fluoroscopy-guided RFA during the period from March 2014 to February 2015,were collected as control group.The X-ray irradiation time,success rate of operation,operation time,complication and recurrence rate were calculated and the results were compared between the two groups.Results The mean fluoroscopy time in Carto group was (2.6±2.3) min,which was significantly less than (15.8±9.5) min in the control group (P＜0.001),and among them zero X-ray irradiation was obtained in 8 patients who had atrioventricular nodal reentrant tachycardia (AVNRT).The operation success rates of Carto group and the control group were 100％ (28/28) and 94.4％ (35/36) respectively (P＞0.05).The operation time in Carto group and the control group was (162.7±34.4) min and (149.4±46.2) min respectively (P＞0.05).In Carto group no any complications occurred,and in the control group one patient with AVNRT developed transient degree Ⅱ atrioventricular block during ablation process.All patients were followed up for 6 months,and no recurrence was observed in all patients of both groups.Conclusion For the treatment of PSVT,RFA guided by Carto3 three-dimensional electrophysiological mapping system is safe and effective,it can significantly reduce the X-ray irradiation time,even zero X-ray radiation in some AVNRT patients,meanwhile,this technique does not increase operation time and operation risk.
