Radiofrequency catheter ablation for idiopathic premature ventricular contraction originating in the right outflow tract: a comparative study in guidance of routine mapping or Carto XP/Carto3 electro-anatomic mapping system

Shengrong Deng; Maoqin Shu; Zhiyuan Song; Li Zhong; Yang Zhou

doi:10.16016/j.1000-5404.201608106

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Radiofrequency catheter ablation for idiopathic premature ventricular contraction originating in the right outflow tract: a comparative study in guidance of routine mapping or Carto XP/Carto3 electro-anatomic mapping system

更新时间：2026-01-09

- Radiofrequency catheter ablation for idiopathic premature ventricular contraction originating in the right outflow tract: a comparative study in guidance of routine mapping or Carto XP/Carto3 electro-anatomic mapping system
- Journal of Third Military Medical University Vol. 39, Issue 3, Pages: 265-270(2017)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.16016/j.1000-5404.201608106
  CLC：
- Received：20 August 2016，
  
  Published：15 January 2017
- 稿件说明：
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Shengrong Deng, Maoqin Shu, Zhiyuan Song, et al. Radiofrequency catheter ablation for idiopathic premature ventricular contraction originating in the right outflow tract: a comparative study in guidance of routine mapping or Carto XP/Carto3 electro-anatomic mapping system[J]. Journal of Third Military Medical University, 2017, 39(3): 265-270.
DOI：

Shengrong Deng, Maoqin Shu, Zhiyuan Song, et al. Radiofrequency catheter ablation for idiopathic premature ventricular contraction originating in the right outflow tract: a comparative study in guidance of routine mapping or Carto XP/Carto3 electro-anatomic mapping system[J]. Journal of Third Military Medical University, 2017, 39(3): 265-270. DOI： 10.16016/j.1000-5404.201608106.

摘要

Abstract

Objective

To investigate the efficacy and safety of radiofrequency catheter ablation (RFCA) guided by routine mapping or the 3-dimensional electro-anatomic mapping system (Carto XP/Carto3 electro-anatomic mapping) on idiopathic premature ventricular contraction (PVC) originating from the right ventricular outflow tract (RVOT).

Methods

A retrospective study was carried out on 144 PVC patients who underwent RFCA in our department from March 2013 to October 2015. Thirty-six patients were guided by routine mapping

and the other 108 cases by Carto XP/Carto3 electro-anatomic mapping. The mapping time

ablation time

fluoroscopic time and total procedure time were compared between the routine mapping group and Carto XP/Carto3 electro-anatomic mapping group. The levels of C reactive protein (CRP)

cardiac troponin Ⅰ (cTnⅠ) and creatine kinase-MB (CK-MB) were detected before RFCA

and in 1 and 7 d after RFCA in both groups. The efficacy was observed in 1 and 3 months of follow-up.

Results

The Carto XP/Carto3 electro-anatomic mapping group had significantly shorter mapping time

ablation time

fluoroscopic time and total procedure time of RFCA

and lower levels of CRP

cTnⅠ and CK-MB

when compared with the routine mapping group (all

0.01). The immediate success rate was 94.4% (34/36) in the routine mapping group

and was 100% (108/108) in the Carto XP/Carto3 electro-anatomic mapping group

with obvious difference between the 2 groups. At 1 month after RFCA

3 of 34 patients in the routine mapping group had recurrence of arrhythmias

but no such patient was found in the Carto XP/Carto3 electro-anatomic mapping group. At 3 months after RFCA

no recurrence of arrhythmias was observed in both groups.

Conclusion

Compared with routine mapping

Carto XP/Carto3 electro-anatomic mapping is safer

and more accurate and effective in mapping. But routine mapping has comparatively high success rate and relatively low operation cost

and is still a viable option for the patients with economic difficulties.

关键词

Keywords

references

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