冠状动脉微血管功能障碍是MINOCA所有亚型的标志
Andrea Milzi1, Rosalia Dettori2, Richard Karl Lubberich2
1Department of Internal Medicine I, University Hospital of the RWTH, Aachen, Germany. amilzi@ukaachen.de.
概括
冠状动脉微血管功能障碍 (CMD) 在没有阻塞性冠状动脉疾病 (MINOCA) 亚型的所有心肌梗塞中普遍存在. 这一发现加深了对MINOCA的理解.
科学领域:
- 心脏病学 心脏病学
- 血管生物学 血管生物学
- 内部医学 内部医学
背景情况:
- 没有阻塞性冠状动脉疾病 (MINOCA) 的心肌梗塞是一种复杂的疾病,其潜在机制尚不清楚.
- 冠状动脉微血管功能障碍 (CMD) 越来越多地与MINOCA有关,但它在不同MINOCA亚型中的作用需要进一步调查.
- 了解MINOCA中CMD的流行和分布对于准确的诊断和有针对性的治疗策略至关重要.
研究的目的:
- 在被诊断为MINOCA的患者的三个冠状动脉血管中调查冠状动脉微血管功能障碍 (CMD) 的存在和程度.
- 为了确定CMD是否在MINOCA的不同临床亚型中均存在.
- 为了将CMD的发现与MINOCA的特定临床表现相关联.
主要方法:
- 追溯分析92名患者,包括64名MINOCA患者和28名对照患者.
- 评估冠状动脉微血管功能,使用基于血管学的微血管抵抗指数 (aIMR) 在所有三个冠状动脉区域.
- 将MINOCA患者分为冠状动脉原因, takotsubo心肌病变,浸性/炎症性心肌病变以及不明原因.
主要成果:
- 与对照组相比,MINOCA患者的平均aIMR显著高于对照组,这表明CMD的广泛传播.
- 不同的MINOCA亚型 (冠状动脉原因,恐惧症,透/炎症,不清楚) 之间没有观察到平均aIMR的显著差异.
- 与其他血管相比,供应受影响心肌的冠状动脉血管显示出较高aIMR的趋势.
结论:
- 冠状动脉微血管功能障碍是所有已识别的MINOCA亚型中存在的一个基本特征.
- 这项研究增强了对MINOCA病理生理学的理解,突出了CMD的一致作用.
- 这些发现表明,CMD是MINOCA全谱的统一特征,无论临床亚型如何.
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