Purpose

A new type of visualized steerable sheath (Vizigo sheath; Biosense Webster Inc., Irvine, CA, USA) has been employed in clinical treatment. This study aimed to compare the effectiveness and safety of the Vizigo sheath to a fixed sheath (Swartz sheath; St. Jude Inc., St. Paul, MN, USA) for catheter ablation of paroxysmal atrial fibrillation (PAF).

Methods

We analyzed the procedural time, fluoroscopy time, contact force (CF), and initial pulmonary vein isolation (PVI) rate. After 6 months of follow-up, the success rate of ablation between the two groups was compared.

Results

Compared to the Swartz sheath, using the Vizigo sheath can significantly reduce the total procedural time and fluoroscopy time and increase the overall average CF, especially in the anterior left pulmonary vein (LPV), superior LPV, posterior right pulmonary vein (RPV), and superior RPV. The proportion of CF within a reasonable range in the Vizigo group was significantly higher than that in the Swartz group, especially in the anterior LPV, posterior RPV, and superior RPV. Besides, the left, right, and bilateral initial PVI rates in the Vizigo group were significantly higher.

Conclusions

The visualized steerable sheath for PAF catheter ablation not only reduced radiation exposure but also significantly improved CF and initial PVI rate, all of which indicated an increased rate of successful ablation.

中文翻译：

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可视化可操纵鞘管在阵发性心房颤动导管消融中的应用

目的

一种新型可视化可操纵护套（Vizigo 护套；Biosense Webster Inc., Irvine, CA, USA）已用于临床治疗。本研究旨在比较 Vizigo 鞘管与固定鞘管（Swartz 鞘管；St. Jude Inc., St. Paul, MN, USA）在阵发性心房颤动 (PAF) 导管消融中的有效性和安全性。

方法

我们分析了手术时间、透视时间、接触力 (CF) 和初始肺静脉隔离 (PVI) 率。随访6个月后比较两组消融成功率。

结果

与 Swartz 鞘相比，使用 Vizigo 鞘可以显着减少总手术时间和透视时间并增加总体平均 CF，尤其是在左前肺静脉 (LPV)、上 LPV、右后肺静脉 (RPV) 和优越的 RPV。Vizigo组CF在合理范围内的比例明显高于Swartz组，尤其是前LPV、后RPV和上RPV。此外，Vizigo 组的左侧、右侧和双侧初始 PVI 率显着更高。

结论

用于 PAF 导管消融的可视化可操纵护套不仅减少了辐射暴露，而且显着改善了 CF 和初始 PVI 率，所有这些都表明消融成功率增加。