在焦点和扩散疾病中冠状动脉样硬化现象
Koshiro Sakai1, Takuya Mizukami2, Jonathon Leipsic3
1Cardiovascular Center Aalst, OLV Clinic, Aalst, Belgium; Department of Medicine, Division of Cardiology, Showa University School of Medicine, Tokyo, Japan.
JACC. Cardiovascular imaging
|July 22, 2023
概括
焦点冠状动脉疾病 (CAD) 显示出较高的斑块负担和富含脂质的斑块与薄盖纤维肌瘤 (TCFA),而扩散的CAD则具有更多的化. 这将斑块特征与冠状动力学联系起来.
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
- 医疗成像医学成像
背景情况:
- 冠状动力学和动脉硬性斑块特征之间的关系尚未完全理解.
- 根据血液动力学,区分焦点和扩散冠状动脉疾病 (CAD) 对于理解斑块行为至关重要.
研究的目的:
- 为了比较动脉样硬化斑块表型在焦点与分散的CAD,如冠状动力学所定义的.
- 为了研究拉回压力梯度 (PPG) 和斑块形态学的关系.
主要方法:
- 一项多中心前性研究包括117名具有功能显著病变的患者 (FFR ≤0.80).
- 斑块分析使用冠状动脉计算机断层扫描血管学 (CCTA) 和光学连贯性断层扫描 (OCT).
- 通过使用机动FFR回撤来评估CAD模式,通过中位 PPG量化焦点与扩散疾病.
主要成果:
- 焦点CAD在CCTA上表现出较高的斑块负担 (87%与82%,P=0.003).
- 扩散性CAD显示出明显更多的化 (阿加斯顿得分:158比51,P=0.024).
- 在焦点CAD中,OCT显示脂质丰富斑块 (37%与4%,P=0.001) 和TCFA (47%与10%,P=0.002) 的患病率较高.
结论:
- 动脉硬性斑块表型与冠状动脉内血液动力学有关.
- 焦点CAD的特点是较高的斑块负担和富含TCFA的富含脂质斑块.
- 扩散性CAD与更普遍的化有关,突出了不同的血液动力学-形态学模式.
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