在高功率短时间切除过程中,柔性尖端与非柔性尖端导管之间的微栓塞信号差异
Yoshiaki Mizutani1, Satoshi Yanagisawa2, Mizuki Ichikawa3
1Department of Cardiology, Yokkaichi Municipal Hospital, Yokkaichi, Japan.
Journal of cardiovascular electrophysiology
|August 26, 2025
概括
与非柔性尖端导管相比,这种新型的柔性尖端导管在高功率短时间 (HPSD) 移除过程中显著降低了微栓塞信号. 这表明柔性尖端导管可能为心房动提供更安全的HPSD切除.
科学领域:
- 心血管干预
- 医疗设备技术
- 电生理学
背景情况:
- 一种新型的柔性尖端除菌导管具有独特的远端, 旨在优化灌流量.
- 高强度短时间 (HPSD) 切除是对心房的有效治疗方法.
- 评估微栓塞信号 (MES) 对于评估除手术的安全性至关重要.
研究的目的:
- 在柔性尖端和非柔性尖端除导管之间比较HPSD射频除过程中MES的发生率.
- 评估新型柔性尖端导管在减少栓塞事件中的安全性和有效性.
主要方法:
- 对70名首次接受HPSD切除 (50W) 的患者进行了回顾性分析.
- 在肺静脉隔离过程中使用带超声波多普勒对MES的临床评估.
- 用两种类型的导管对猪心脏组织进行实验性切除以评估MES.
主要成果:
- 与非柔性尖端组相比,柔性尖端组的MES,MES每点和MES每秒的数量显著降低 (p < 0. 001).
- 在倾向性得分匹配后,MES在柔性尖端组 (p = 0.013) 中仍然明显较低,特别是泡型MES (p = 0.023).
- 实验研究证实,使用柔尖导管的MES显著减少 (p = 0.002).
结论:
- 与50W的非柔性尖端导管相比,柔性尖端导管的切除显著减少了MES检测.
- 这些发现表明,柔性尖端导管可以实现更安全的HPSD切除手术.
- 灵活尖端导管的优化灌设计可能有助于减少栓塞事件.
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