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过导管心脏门框架的纤维组织生长

Hacina J Gill¹, Brooke G K MacLeod¹, Noah Tregobov¹

¹Centre for Cardiovascular Innovation, St. Paul's and Vancouver General Hospital, Vancouver, British Columbia, Canada; Cardiovascular Translational Laboratory, Providence Research & Centre for Heart Lung Innovation, Vancouver, British Columbia, Canada; Centre for Heart Valve Innovation, St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada.

JACC. Cardiovascular interventions

|February 25, 2026

概括

在TAVR后,穿透导管心脏门 (THV) 中纤维组织的内生常见,可能会阻碍冠状动脉接入和新洗. 这种病理可能会使未来的手术复杂化,如重复TAVR.

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
生物材料科学生物材料科学

背景情况:

冠状动脉接入和神经鼻冲洗是通过透导管进行大动脉置换 (TAVR) 后至关重要的.
穿透管心脏 (THV) 病理对这些因素的影响尚不清楚.

研究的目的:

为了评估THV框架阻塞从纤维组织内生长.
评估这种阻碍对冠状动脉通道和新鼻脉流的影响.

主要方法:

检查了34个SAPIEN和10个Evolut/CoreValve (EV/CV) 探究THV的框架细胞阻塞.
通过使用患者数据,成像和组织学来评估纤维细胞的生长.
测试了6-F导管通道,以确定通道的可行性,并模拟了重复TAVR场景.

主要成果:

79.5%的解释THV显示纤维生长,随着植入时间的增加而增加.
纤维生阻碍了13%的潜在冠状动脉接入部位的6F导管通道.
重新TAVR模型显示可访问性降低,其中76%无法通过6-F导管进行窗口.

结论:

在TAVR后,纤维THV框架的内生常见.
这种内生可以使THV的扩张复杂化,并阻碍冠状动脉的进入和新鼻洗.
病理变化可能会影响未来的干预措施,包括重复TAVR.

关键词:

在TAVRR中,我们可以看到.对于THV功能障碍来说,这是一个问题.THV 的解释.冠状动脉接入冠状动脉接入有纤维化的纤维化.

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