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| Clinical study on catheter ablation of tachyarrhythmias guided by Columbus 2.0 three-dimension cardiac electrophysiological mapping system |
| LI Xiaorong1, YU Jinbo1, QIU Zhaohui2, ZHANG Xumin1, ZHU Zhongsheng3, CUI Haiming4, WU Yizhang1, XIE Xin1, ZHOU Jian1, WANG Xuecheng1, HU Wei2，YANG Bing1 |
| (Department of Cardiology, 1. Shanghai East Hospital, Tongji University, Shanghai 200120; 2. Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200336; 3. Shanghai Pudong Hospital, Shanghai 201399; 4. Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China) |
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Abstract Objective To evaluate the efficacy and safety of the domestic Columbus 2.0 three-dimension (3D) cardiac electrophysiological mapping system and its supporting catheter in the treatment of tachyarrhythmias through a prospective, multicenter and singlearm study. Methods We selected 50 consecutive patients with tachyarrhythmias from 4 electrophysiological centers of Shanghai; 20 patients (40.0%) are males, the mean age of patients is (55.38±18.14) years old. Radiofrequency ablation was performed on these patients guided by Columbus 2.0 system and its supporting catheter. The immediate success rate, operation time, X-ray exposure time and dose, and adverse events were recorded. All the patients were followed up for 6 months. Results There are 34 patients with atrioventricular nodal reentry tachycardia, 11 cases with atrioventricular reentry tachycardia, one with atrial tachycardia, one with typical atrial flutter, and 3 patients with premature ventricular ntraction. The immediate success rate of the procedure is 100%; no catheter ablation related adverse event occurs during the perioperative period. The average operation time is 114.00 (89.75, 166.25) min, the average X-ray exposure time is 5.90 (3.78, 8.07) min, and the average X-ray exposure dose is 23.96 (8.00, 50.00) mGy. There is no recurrence during 6 months of follow-up. Conclusion The efficacy and safety of Columbus 2.0 3D cardiac electrophysiological mapping system and its supporting catheter is satisfying in treating tachyarrhythmias, especially supraventricular arrhythmias.
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. [J]. JOURNAL OF PRACTICAL ELECTROCARDIOLOGY, 2024, 33(1): 82-83. |
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