Evaluation of Three Dimensional Electro-anatomical Mapping System in Treating the Patients With Paroxysmal Supra-ventricular Tachycardia by Radio Frequency Catheter Ablation
10.3969/j.issn.1000-3614.2014.09.008
- VernacularTitle:Carto 3三维电解剖标测系统在阵发性室上性心动过速射频消融治疗中的应用价值探讨
- Author:
Shuying QI
;
Jie LI
;
Yuhong LI
;
Aixue XI
;
Xiaoye WNAG
;
Xuebing LUAN
;
Na XU
;
Dongmei WANG
- Publication Type:Journal Article
- Keywords:
Three dimensional electro-anatomic mapping system;
Paroxysmal supra-ventricular tachycardia;
Radio frequency catheter ablation;
X-ray exposure;
Success rate;
Complication
- From:
Chinese Circulation Journal
2014;(9):686-689
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To explore the feasibility and safety of three dimensional (3D) electro-anatomical mapping system (Carto3) in treating the patients with paroxysmal supra-ventricular tachycardia (PSVT) by radiofrequency catheter ablation (RCFA).
Methods: A total of 180 PSVT patients were divided into 2 groups, n=90 in each group. 3-D group, the patients received RCFA with 3-D reconstructed valve ring model under Carto3 guidance. 2-D group, the patients received RCFA under conventional X-ray guidance. The procedural and X-ray exposure times, rates of success and complications, tachycardia recurrence at 6 months after procedure and the cost were observed and compared between 2 group.
Results: The procedural time was similar between 2 groups, P=0.1403. The patients in 3-D group had the lower X-ray exposure time (2.1 ± 0.7 vs 7.8 ± 3.6) min, particularly in those with right-sided accessory pathway (3.4 ± 0.7 vs 20.2 ± 7.1) min, and dual atrio-ventricular (A-V) nodal pathways (1.1 ± 0.3 vs 5.5 ±1.7) min, all P<0.0001. There was 1 patient in 3-D group without RCFA and all the others were successes. 2-D group had 3 patients with failed RFCA including 2 of right-sided accessory pathway, 1 of dual A-V nodal pathways and received 2nd RCFA under Carto3 guidance. 3-D group had no complication, no recurrence. In 2-D group, 1 patient suffered from complete A-V block (AVB) during ablation and 1-year later, the Holter showed II° to III° AVB;2 patients with recurrence including 1 of dual A-V nodal pathways and had successful 2nd ablation. The cost was higher in 3-D treatment.
Conclusion: RFCA was feasible for treating PSVT patients under Carto3 guidance, which had the higher success rate with lower X-ray exposure and complication.
