Mapping and radiofrequency ablation of para-His bundle atrioventricular accessory pathways guided by CARTO3 system or routine X-ray
LIU Jian-guo
XU Ai-bin
WU Long-mei
TAN Chen
LI Jun-xia
CUI Jun-yu
Abstract：Objective To compare mapping and radiofrequency ablation (RFA) of para-His bundle atrioventricular accessory pathways guided by CARTO3 system or routine X-ray. Methods The patients (n=12) with para-His bundle atrioventricular accessory pathways treated with RFA were chosen and given intracardiac electrophysiological examinations. The target of RFA was mapped with routine X-ray in 9 patients and with CARTO3 system in 3 ones, and then all patients were given treatment of RFA. The success rate of RFA, time of X-ray exposure and complications were compared between 2 methods. Results Among 9 patients with routine X-ray mapping, 6 had successful RFA (66.7%), 2 had unsuccessful RFA and 1 abandoned RFA because of target being too near to para-His bundle atrioventricular accessory pathways. There was 1 patient had complete atrioventricular block during RFA, and the time of X-ray exposure was (36.2±13.4) min. All 3 patients with CARTO3 system mapping had successful RFA (100.0%) and the time of X-ray exposure was (14.2±7.8) min. Compared with routine X-ray mapping, CARTO3 system mapping had higher success rate and shorter time of X-ray exposure (P<0.05). Conclusion Compared with routine X-ray, CARTO3 system can more accurately indicate the spatial locations of para-His bundle atrioventricular accessory pathways and ablation catheter, shorten time of X-ray exposure, and improve success rate of RFA.
Keywords：atrioventricular accessory pathwaysHis bundleradiofrequency ablation
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：3( 333-335 )