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在患有急性心肌梗塞的患者中,无回流现象和病变形态
Atsushi Tanaka1, Takahiko Kawarabayashi, Yoshiharu Nishibori
1Department of Cardiology, Baba Memorial Hospital, Sakai, Japan. m4497147@msic.med.osaka-cu.ac.jp
Circulation
|May 8, 2002
概括
在治疗前确定特定的斑块特征可以预测急性心肌梗塞 (AMI) 患者的无回流现象. 富含脂质的斑块和较大的病变区域与干预后的微血管功能不佳有关.
科学领域:
- 心脏病学 心脏病学
- 干预心脏病学 干预心脏病学
- 血管超声波是指血管超声波.
背景情况:
- 无回流现象对急性心肌梗塞 (AMI) 患者的结果产生负面影响.
- 准确识别高风险病变在初级穿皮冠状动脉干预 (PCI) 中至关重要.
- 有限的研究存在于病变形态和无反流后AMI干预之间的相关性.
研究的目的:
- 为了研究干预前血管内超声波 (IVUS) 检测到的病变形态和无反流现象的发生之间的关系.
- 确定在接受初级干预的AMI患者中,IVUS衍生的非回流的特定形态预测因子.
主要方法:
- 一项前性研究,涉及100名接受初级血管塑造或支架的AMI患者.
- 干预前进行IVUS成像,以评估病变形态.
- 进行了血管图形无反流 (心肌梗塞中血栓溶解流量级0-2) 的干预后评估,不包括机械阻塞.
主要成果:
- 在13%的患者中发生了血管学无反流.
- 单变量分析确定高胆固醇血症,斑块裂/切割,富含脂质的斑块和病变大小作为无反流的相关物.
- 多变量分析显示,富含脂质的斑块 (OR 118) 和病变外部弹性膜截面面积 (OR 1.55) 是无回流的独立预测因素.
结论:
- 具有丰富脂质斑块的大血管与AMI初级PCI后不回流的高风险有关.
- 斑块的组成,特别是脂质含量,可能会在AMI的反疗法期间导致微循环损伤.
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