不同左冠状动脉开口对心肌血运的影响

吴启源; 周华; 王伟; 范晓军; 李炜; 林涛; 袁明远

doi:10.12125/j.chj.202012029

不同左冠状动脉开口对心肌血运的影响

Correlation between high opening of left coronary artery and distribution of left coronary artery plaque and myocardial ischemia caused by stenosis

摘要

摘要:
目的比较左冠状动脉高位开口与正常开口对心肌血运的影响。
方法选择左冠状动脉正常开口组（正常开口）及高位开口组（高位开口）患者各84例，分析两组患者基本临床资料，比较两组患者左冠状动脉斑块发生率与两组冠脉血管各支斑块形成率和狭窄程度，比较两组CT血流储备分数（CT-FFR）有无显著差异。
结果与左冠状动脉正常开口组相比，左冠状动脉高位开口组的斑块发生率的差异无统计学意义；斑块在左主干（LM）-左前降支（LAD）及左回旋支（LCX）的分布差异无统计学意义；血管狭窄率在LAD及LCX上的分布差异无统计学意义；狭窄组患者在LAD及LCX的心肌缺血发生率的差异无统计学意义。
结论左冠高位开口与左冠状动脉斑块形成及狭窄分布均无明显相关性，不会导致心肌缺血，是一种良性解剖变异。

Abstract:
AIM To study the CT angiography (CTA) findings of the high opening of left coronary artery and its correlation with plaque distribution and stenosis of left coronary artery.
METHODS A retrospective analysis was conducted in 84 patients respectively in the high opening group and the normal opening group, and the distribution of basic clinical data, the number of left coronary artery plaque and the distribution of coronary artery stenosis caused by plaque were studied. The two groups of patients were grouped according to stenosis and the value of CT blood flow reserve fraction (CT-FFR) was compared.
RESULTS The diagnosis of 84 patients with high opening was clear. Between the two groups, There was no significant difference in clinical basic data, the number of plaque distribution, the distribution of plaque in LAD and LCX, and LAD and LCX myocardial ischemia.
CONCLUSION There is no significant corre- lation between the high opening of left coronary artery and the formation of plaque and the distribution of stenosis of left coronary artery.The left coronal high opening is a benign anatomic variation without myocardial ischemia.

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