在CABG的SAPHENUS静脉中的Vasa Vasorum:对形态特征的审查
1Research Department of Inflammation, Centre for Rheumatology and Connective Tissue Diseases, Division of Medicine, University College London, London, United Kingdom.
Brazilian journal of cardiovascular surgery
|October 5, 2023
概括
显微镜检查显示,在传统的软静脉 (SV) 移植中,Vasa vasorum受损,这表明危细胞参与了血管收缩和改变了底层膜结构. 需要进一步的研究来了解冠状动脉旁路移植中的这些变化.
科学领域:
- 血管生物学 血管生物学
- 显微镜技术 显微镜技术
- 手术病理学手术病理学
背景情况:
- 血管 (vasa vasorum) 将血液供应给大型血管的壁面,包括软静脉 (SV).
- 手术收获技术可能会影响SV及其血管的完整性.
- 了解血管血管结构对于优化冠状动脉旁路移植 (CABG) 中的SV移植通透度至关重要.
研究的目的:
- 为了比较使用常规 (CON) 与无触摸 (NT) 技术收获的人类沙芬静脉中vasa vasorum的超结构特征.
- 为了研究皮质细胞和底层膜在SV. vas vasorum中所扮演的角色.
- 探索vasa vasorum结构变化与CABG相关的生理性质之间的潜在相关性.
主要方法:
- 扫描电子显微镜 (SEM) 用于一般的血管体形态学.
- 传输电子显微镜 (TEM) 用于详细的超结构分析.
- 激光共聚焦显微镜检查特定蛋白质的内皮同位素.
主要成果:
- 与NT-SV相比,SEM在CON-SV中显示出血管血管的一般损伤.
- 经过TEM检测,发现底层膜层变厚/增多,以及潜在的细胞参与血管收缩,特别是在CON-SV.
- 在一些vasa微容器中观察到可诱导的氧化合成酶和endothelin-1的局部化,可能与底层膜变化有关.
结论:
- 收获技术影响着血管的完整性,CON-SV显示了更多的损伤.
- 基底膜和细胞周细胞的结构变化可能会影响 SV 的收缩性质.
- 为了改善CABG结果,需要进一步研究vasa vasorum组件的生理相互作用.
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