使用单极半常态盐水灌和双极常态盐水灌使用长时间的应用时间除的损伤特征
Takumi Kasai1, Osamu Saitoh1, Ayaka Oikawa1
1Cardiovascular Research of Graduate School of Health Sciences, Niigata University School of Medicine, Niigata, Japan.
Indian pacing and electrophysiology journal
|November 16, 2024
概括
与单极方法相比,使用正常盐水灌 (BIP-NS) 的双极射频除在厚心肌中产生了更深的病变. 在双导管放置是可行的时,BIP-NS优先用于跨壁病变.
科学领域:
- 心脏电生理学 心脏电生理学
- 最少侵入性心脏外科手术
- 无线电频率消光技术的技术
背景情况:
- 单极射频 (RF) 切除与半正常盐水灌 (UNIP-HNS) 和双极射频切除与正常盐水灌 (BIP-NS) 对于治疗厚心肌节律失常是有效的.
- 之前的研究还没有完全阐明这些废弃技术在延长应用时间期间的差异.
研究的目的:
- 为了比较UNIP-HNS,BIP-NS和单极射频除与正常盐水灌 (UNIP-NS) 在厚心肌组织中长时间应用期间的疗效和病变特征.
- 为了评估由不同的射频切除策略所造成的损伤深度,宽度和长度.
主要方法:
- 猪内心壁 (厚度≥15.0毫米) 使用UNIP-HNS,BIP-NS和UNIP-NS进行了120秒的30W和20g接触力的切除.
- 分析了包括阻抗下降,病变表面积,最大宽度,深度和长度在内的除参数.
主要成果:
- 所有的废除类型都在没有蒸汽爆发的情况下成功完成. BIP-NS显示了最大的总阻抗下降.
- 与UNIP-NS和BIP-NS相比,UNIP-HNS产生了更大的表面病变和更大的地下宽度.
- 内心病变深度在UNIP-HNS和BIP-NS中比UNIP-NS更大,在非穿越性病变中,UNIP-HNS和BIP-NS之间没有差异. BIP-NS在横心肌壁中产生了最长的病变.
结论:
- 无论是UNIP-HNS还是BIP-NS,都可用于在厚心肌中长期应用时间 (30W) 的切除.
- 建议使用正常盐水灌 (BIP-NS) 进行双极射频切除,以实现跨壁或更深的心肌病变,特别是当两个切除导管可以在目标区域双边放置时.
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