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动态心电图联合血清内皮微粒钙整合素结合蛋白1对冠心病无症状心肌缺血的诊断价值

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摘要 目的 探讨动态心电图联合血清内皮微粒(EMP)、钙整合素结合蛋白1(CIB1)对冠心病无症状心肌缺血的诊断价值。方法 选取2020年3月至2022年9月收治的疑似冠心病无症状心肌缺血患者220例为研究对象,经冠状动脉造影(CAG)检查结果分为CAG阳性组(n=120)和CAG阴性组(n=100)。采用化学发光法检测血清EMP、CIB1表达水平。分析对比动态心电图与血清EMP、CIB1单一检测和联合检测对冠心病无症状心肌缺血的诊断效能;采用受试者工作特征(ROC)曲线评价血清EMP、CIB1对冠心病无症状心肌缺血发生的诊断价值。结果 CAG阳性组患者血清中血清EMP水平[(1 425±261)×10^(6)/L]、发作持续时间[(273±50)s]显著高于CAG阴性组[(1 185±126)×10^(6)/L,(47±4)s],血清CIB1水平(33±4)显著低于CAG阴性组(47.0±4.3),差异有统计学意义(P<0.05);CAG阴性组ST段压低1 820次,CAG阳性组ST段压低318次,发作时间主要集中6:01~12:00。CAG阴性组与CAG阳性组患者心肌缺血ST段压低发作时间分布比较差异无统计学意义(P>0.05);受试者工作特征曲线(ROC)显示,血清EMP、CIB1诊断冠心病无症状心肌缺血的曲线下面积(95%CI)分别为0.820(0.763,0.869)、0.873(0.822,0.914),截断值分别为1296×10^(6)/L、39.7,对应的灵敏度分别为72.5%、90.8%,特异度分别为84.0%、74.0%。二者联合诊断的曲线下面积(95%CI)为0.917(0.872,0.950),灵敏度为71.67%,特异度为92.00%;EMP、CIB1、动态心电图三者联合检测的敏感度及准确率均高于单一指标检测(95.8%与72.5%、90.83%、70.83%,P<0.001、<0.001;90.0%与77.7%、83.2%、73.6%,P<0.001、=0.121、<0.001、=0.036)。结论 血清EMP、CIB1水平联合动态心电图检测可提高冠心病无症状心肌缺血患者的诊断准确率、敏感度,具有较高的诊断价值。
作者 黄莉 焦东生
出处 《山西医药杂志》 CAS 2023年第21期1651-1655,共5页 Shanxi Medical Journal
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