冠状动脉重塑与斑块脆弱性之间的关系
Amanda M Varnava1, Peter G Mills, Michael J Davies
1Department of Cardiology, London Chest Hospital, London, UK. avarnava@sghms.ac.uk
Circulation
|February 28, 2002
概括
冠状动脉斑块的阳性重塑显示了脂质核心和巨细胞数量的增加,表明更高的脆弱性. 这一发现将斑块脆弱性标记与冠状动脉的积极重塑联系起来.
科学领域:
- 心血管病理学心血管病理学
- 动脉重塑 动脉重塑 动脉重塑
- 动脉样硬化研究 动脉样硬化研究
背景情况:
- 复杂的斑块解剖学和破裂与外向动脉重塑有关.
- 脂质核大小和巨细胞透是斑块脆弱性的组织学标志物.
- 这些脆弱性标志物与冠状动脉重塑之间的关系以前未被探索.
研究的目的:
- 调查冠状动脉斑块重塑和脆弱性的组织学标记之间的关联.
- 为了确定正转型是否与更大的脂质核和更高的巨细胞数量相关.
主要方法:
- 研究了88名患有冠状动脉疾病的男性受试者的108个斑块.
- 分类病变为具有正重塑 (重塑>=0%) 或负重塑 (血管收缩,重塑<0%) 的病变.
- 评估每个斑块的脂质核和巨细胞数的百分比.
主要成果:
- 59.2%的斑块显示没有重塑或正重塑; 40.7%显示负重塑.
- 带有正重塑的斑块具有显著更大的脂质核 (39.0%与22.3%,P < 0.0001).
- 积极的重塑与更高的巨细胞数量有关 (15.6与8.9,P = 0.005).
结论:
- 冠状动脉斑块具有积极的重塑,表明脂质含量增加和巨细胞透.
- 这些发现确定了积极的重塑作为与斑块脆弱性相关的标记.
- 结果可能解释了在温和的光线狭窄但显著的积极重塑的部位上的斑块破裂.
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