在非阻塞性冠状动脉疾病中症状表型和冠状动脉微血管功能:超越表心缺血的洞察力
Kotaro Matsumoto1, Kenichiro Otsuka1, Shunsuke Kagawa1
1Department of Cardiovascular Medicine, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahicho, Abenoku, Osaka, 545-8585, Japan.
American heart journal plus : cardiology research and practice
|January 22, 2026
概括
冠状动脉微血管功能障碍 (CMD) 与非阻塞性冠状动脉疾病 (NOCA) 中的胸痛症状有所不同. 客观的生理测试对于准确的CMD评估至关重要,因为仅仅症状是不可靠的.
科学领域:
- 心脏病学 心脏病学
- 血管医学 血管医学
- 诊断成像 诊断成像 诊断成像
背景情况:
- 非阻塞性冠状动脉疾病 (NOCA) 影响了大量患者群体.
- 冠状动脉微血管功能障碍 (CMD) 越来越多地被认为是NOCA中心痛的原因.
- 当前的诊断方法通常依赖于症状表现,这可能不准确地反映了潜在的生理学.
研究的目的:
- 为了研究冠状动脉微血管功能障碍 (CMD) 指数和NOCA患者的胸痛表现之间的关系.
- 评估基于症状的评估的诊断性能,以检测CMD.
- 为了确定客观的生理测量是否与NOCA患者的症状严重程度相关.
主要方法:
- 对59名中期LAD狭窄和保存FFR的患者进行了回顾性观察性研究.
- 冠状动脉微血管功能的侵入性评估使用冠状动脉流量储备 (CFR),微循环阻力指数 (IMR) 和心肌阻力储备 (MRR).
- 分析症状表型 (典型的胸痛,非典型的,无症状的) 和生理指数之间的关联.
主要成果:
- 冠状动脉流量储备 (CFR) 和心肌阻力储备 (MRR) 在症状表型 (p < 0.001) 中显著不同,典型的胸痛患者显示最低值.
- 微循环阻力指数 (IMR) 在各组之间没有显著差异.
- 症状严重程度与CFR和MRR相反相关 (p < 0.005),基于症状的评估显示CMD检测的特异性高于敏感性.
结论:
- 冠状动脉微血管血管扩张储备根据NOCA患者的症状呈现有显著差异.
- 仅仅是对症状的评估,对于在NOCA中诊断CMD是不可靠的.
- 客观的生理评估对于NOCA中CMD的准确表征和管理至关重要.
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