Abstract：Objective To investigate the effectiveness and safety of atrial fibrillation(AF) catheter ablation guided by magnetic navigation system(MNS) during learning curve. Methods In the sequence of operation time, 90 AF patients were divided into three groups: group A, B and C, each with 30 cases. After transseptal puncture, left atrial modeling as well as left and right pulmonary vein antrum isolation were performed with irrigated MNS catheter, and confirmed by “bulleye” software after isolation. The procedure time, X-ray exposure time and dose, instant success rate of pulmonary vein isolation and procedurerelated complications were recorded and analyzed. Holter recordings for once a month were done during 3 to 6 months follow up postoperatively. Results Ablation procedures were all performed successfully in 90 AF cases. The differences of procedure durations among the three groups were not statistically significant[(158.4±23.5) min, (150.4±22.5) min and (151.3±23.6) min，P＞0.05]. The Xray exposure time and dose were significantly higher in group A than those in group B and C, but similar between the last two groups[(16.8±7.2) min, (8.2±2.6) min and (7.9±3.4) min, P<0.05 between group A and B; (583.7±460.3) mGy, (267.3±191.8) mGy and (225.0±121.0) mGy, P<0.05 between group A and B]. The instant success rate of pulmonary vein isolation was 96.2% in group A and 100% in group B and C. There was no statistically significant difference among the three groups(P＞0.05). In perioperative period, 2 patients in group A experienced hemothorax, and 1 patient experienced groin hematoma. Meanwhile, 1 patient in group B developed lacunar cerebral infarct. No complication happened in group C. There was no statistically significant difference among the three groups(P＞0.05). The success rates of operation were almost similar in the three groups during 3 to 6 months’ follow up postoperatively. Conclusion MNS guided AF catheter ablation proves to be safe and effective with a short learning curve.
郑杰, 李库林, 刘晓宇, 张常莹, 李晓燕, 李嘉萍, 郁志明, 王如兴. 磁导航系统指导下心房颤动导管消融学习曲线期间有效性和安全性分析[J]. 实用心电学杂志, 2016, 25(2): 96-100.
ZHENG Jie, LI Ku-Lin, LIU Xiao-Yu, ZHANG Chang-Ying, LI Xiao-Yan, LI Jia-Ping, YU Zhi-Ming, WANG Ru-Xing. Effectiveness and safety of atrial fibrillation catheter ablation guided by magnetic navigation system during learning curve. JOURNAL OF PRACTICAL ELECTROCARDIOLOGY, 2016, 25(2): 96-100.
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2016, Vol. 25 
