评估冠状动脉微血管功能障碍使用血管图框架计数在患有心痛和非阻塞性冠状动脉的患者
Zhaoxue Sheng1, Wuqiang Che1, Shuoyan An1
1Department of Cardiology, China-Japan Friendship Hospital, Beijing, China.
The Canadian journal of cardiology
|May 8, 2025
概括
在心肌梗塞 (TIMI) 中基于血管造影的血栓溶解框架计数和框架计数储备 (FCR) 可以准确地诊断冠状动脉微血管功能障碍 (CMD) 患有心痛和非阻塞性冠状动脉 (ANOCA) 的患者. 这为更广泛的CMD评估提供了侵入性测试的无线替代方案.
科学领域:
- 心脏病学 心脏病学
- 诊断成像 诊断成像 诊断成像
- 血管生物学 血管生物学
背景情况:
- 冠状动脉微血管功能障碍 (CMD) 经常被诊断不足,原因是侵入性诊断方法的采用有限.
- 基于血管造影的无线技术可能会改善CMD的广泛评估.
- 心肌梗塞中血栓溶解的诊断价值 (TIMI) 框架计数和框架计数储备 (FCR) 在患有心痛和非阻塞性冠状动脉 (ANOCA) 的患者中仍然未被探索.
研究的目的:
- 调查血管图形TIMI数和FCR在ANOCA患者中识别CMD的诊断实用性.
- 为了比较这些血管测量措施的诊断性能与侵入性冠状动脉功能测试.
主要方法:
- 140名ANOCA患者接受了冠状动脉动图和侵入性检测 (微循环阻力 (IMR) 和冠状动脉流量储备 (CFR) 的热稀释衍生指数).
- 在CMD的定义中,CFR<2.5或IMR≥25.
- TIMI框架数 (休息[TFC休息]和高血压[TFC高血压) 和FCR (TFC休息/TFC高血压) 是从血管造影计算出来的.
主要成果:
- TFChyp与IMR的相关性更强 (r = 0.557) 和异常IMR的CMD的诊断性能更好 (AUC,0.810).
- FCR与CFR有很好的相关性 (r = 0.686) 和CMD与异常CFR的高诊断准确性 (AUC,0.871).
- TFChyp ≥19和FCR<2分别独立预测异常IMR和CFR.
结论:
- 血管学TFC和FCR提供了一个全面而准确的无线方法来诊断CMD.
- 这些方法有助于对ANOCA患者进行更广泛的CMD评估,克服了侵入性测试的局限性.
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