门内门TAVR自扩展门的年内门和超年内门自扩展门
John T Saxon1, Alex Wisniewski2, Ibrahim Sultan3
1Department of Medicine, Division of Cardiology, University of Virginia Health, Charlottesville, Virginia, USA.
概括
内自扩张 (IA SEV) 在内TAVR中表现出与上自扩张 (SA SEV) 相似的血液动力学. 这项研究表明IA SEV是VIV TAVR的安全选择,支持进一步的研究.
科学领域:
- 心血管医学 心血管医学
- 干预心脏病学 干预心脏病学
- 人造心脏门是一种假心脏门.
背景情况:
- 患者-假肢不匹配 (PPM) 是内透导管大动脉置换 (VIV TAVR) 的一个局限性,与生活质量下降和心力衰竭住院增加有关.
- 减轻PPM的策略对于改善VIV TAVR结果至关重要.
- 这项研究比较了VIV TAVR环境中的环内自扩张 (IA SEV) 与环外自扩张 (SA SEV).
研究的目的:
- 在VIV TAVR程序中评估和比较IA SEV与SA SEV平台的血液动力学性能和临床结果.
- 评估VIV TAVR的不同自扩展配置的安全性和有效性.
主要方法:
- 这是一项比较性研究,涉及两家中心的IV TAVR患者,接受IA SEV (Navitor) 或SA SEV (Evolut) 治疗.
- 主要终点:30天平均跨膜梯度. 二级终点包括30天有效孔径面积 (EOA) 和关键临床事件 (死亡率,中风,重新干预等). ) 的情况.
- 统计分析采用线性效应模型来调整影响PPM的因素,例如手术的内部尺寸和身体表面积.
主要成果:
- 在IA SEV (10.6 ± 3.6 mmHg) 和SA SEV (12.3 ± 6.9 mmHg) 组 (p=0.44) 之间没有观察到30天平均跨膜梯度的显著差异.
- 在未经调整的分析中,IA SEV组的有效孔面积 (EOA) 略大 (1.69 ± 0.6 cm2) 与SA SEV组 (1.40 ± 0.5 cm2) 相比,在未经调整的分析中 (p=0.04),但在调整后,这种差异并不显著.
- 一小部分IA SEV患者经历了生物假肢骨折,在30天后没有出现任何不良事件,这表明程序安全.
结论:
- 使用IA SEV的VIV TAVR在此案例系列中证明了与SA SEV相比的安全性和可比的血液动力性能.
- 这些发现支持IA SEV在VIV TAVR中的使用,并通过前性研究进行进一步调查.
- IA SEV代表了VIV TAVR的可行选择,可能有助于避免患者与假肢不匹配.
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