Department of Cardiology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Qingyang Road 299, Wuxi, China.
Department of Cardiology, The Heart Centre, Rigshospitalet, Copenhagen University Hospital, Inge LehmannsVej 7, Copenhagen, Denmark.
J Interv Cardiol. 2022 Feb 1;2022:1793590. doi: 10.1155/2022/1793590. eCollection 2022.
Perimitral atrial flutter (PMAFL) is one of the most common macro-reentrant left atrial tachycardias. Mitral isthmus (MI) linear ablation is a common strategy for the treatment of PMAFLs, and anterior septum (AS) linear ablation has emerged as a novel ablation approach. We aimed at assessing the effectiveness of AS linear ablation using robotic magnetic navigation for PMAFL ablation.
In this retrospective study, a total of 36 consecutive patients presented with AFL as the unique arrhythmia or accompanied with atrial fibrillation (AF) who underwent catheter ablation were enrolled. Patients were classified into two groups according to the different ablation strategies, the MI line group (10 patients) and the AS line group (26 patients).
The clinical baseline characteristics of patients in the two groups were nearly identical. There were no significant differences in procedure time (148.7 ± 46.1 vs. 123.2 ± 30.1 min, =0.058) or radiofrequency ablation time (25.9 ± 11.4 vs. 23.5 ± 12.6 min) between the two groups. Fluoroscopy time was longer in the MI line group (8.0 ± 4.4 vs. 5.1 ± 2.7 min, =0.024), and the acute success rate was higher in the AS line group versus the MI line group (96.2% vs. 70%, =0.025). The long-term freedom from arrhythmia survival rate was higher in the AS line group (73%) than in the MI line group (40%) after a mean follow-up time of 37.4 months with a 3-month blanking period (=0.049).
AS linear ablation is an effective and safe strategy for PMAFL ablation using robotic magnetic navigation.
围绕二尖瓣峡部（MI）的线性消融是治疗房性心动过速（AFL）的常用策略，而前间隔（AS）线性消融是一种新的消融方法。我们旨在评估使用机器人磁导航进行房性心动过速消融的 AS 线性消融的有效性。
在这项回顾性研究中，共纳入了 36 例以 AFL 为唯一心律失常或伴有心房颤动（AF）的连续患者进行导管消融。根据不同的消融策略将患者分为 MI 线组（10 例）和 AS 线组（26 例）。
两组患者的临床基线特征几乎相同。两组间的手术时间（148.7 ± 46.1 与 123.2 ± 30.1 分钟，=0.058）或射频消融时间（25.9 ± 11.4 与 23.5 ± 12.6 分钟）无显著差异。MI 线组的透视时间较长（8.0 ± 4.4 与 5.1 ± 2.7 分钟，=0.024），AS 线组的即刻成功率高于 MI 线组（96.2%与 70%，=0.025）。AS 线组的长期无心律失常生存率（73%）高于 MI 线组（40%），随访时间平均为 37.4 个月，空白期为 3 个月（=0.049）。
使用机器人磁导航进行房性心动过速消融，AS 线性消融是一种有效且安全的策略。
