Comparison between Carto system and conventional electrophysiological mapping in ablation of frequent premature ventricular contraction
ZHANG Jun-meng
WANG Yun-long
HAN Zhi-hong
WANG Ye
CHEN Fang
REN Xue-jun
Abstract：Objective To review the advantages, disadvantages and clinical values of Carto system and conventional electrophysiological mapping through studying their guiding effects in ablation of frequent premature ventricular contraction (PVC).Methods The patients (n=371, male 149, female 222) were chosen from Jan. 31, 2011 to May 31, 2014, and then divided, according to different radiofrequency catheter ablations, into conventional group (n=94) and Carto group (n=277). The ablation power, ablation temperature, discharge time, lead time of target potential before QRS onset, X-ray exposure time, operation time, operation success rate and hospitalization costs were compared between 2 groups. The cases, percentage and the total success rate were analyzed in different years.Results The difference in ablation power, discharge time, lead time of target potential before QRS onset, X-ray exposure time and operation time had no statistical significance between 2 groups (allP>0.05). The ablation temperature was higher in conventional group than that in Carto group (P<0.01). Compared with conventional group, the operation success rate increased (85.11%vs. 93.14%), and hospitalization costs increased [(24044.37±6059.74) yuanvs. (41324.02 ±25773.09) yuan] in Carto group (allP<0.05). The percentage of patients with Carto system guiding PVC ablation increased significantly in 2012 (84.47%vs. 45.90%) and in 2013 (88.89%vs. 45.90%, allP<0.01) compared with that in 2011. The operation success rate increased significantly in 2013 compared with 2011 (94.04%vs. 80.33%, P<0.01).Conclusion Carto system guiding PVC ablation can significantly improve operation success rate compared conventional electrophysiological mapping, which is the most primary method for PVC ablation.
Keywords：Premature ventricular contractionRadiofrequency catheter ablationCarto systemElectroanatomical mapping
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 687-689,692 )