检验医学 ›› 2022, Vol. 37 ›› Issue (12): 1164-1168.DOI: 10.3969/j.issn.1673-8640.2022.12.012

• 临床应用研究·论著 • 上一篇    下一篇

RDW和心肌标志物预测冠状动脉粥样硬化患者发生急性心肌梗死的价值

马建国1, 朱小林1, 丁永广2, 尹萌1, 李洪春3()   

  1. 1.沭阳中兴医院检验科,江苏 宿迁 223600
    2.沭阳中兴医院心内科,江苏 宿迁 223600
    3.徐州医科大学医学技术学院,江苏 徐州 221000
  • 收稿日期:2022-03-18 修回日期:2022-09-19 出版日期:2022-12-30 发布日期:2023-02-02
  • 通讯作者: 李洪春,E-mail:56834997@qq.com。
  • 作者简介:马建国,男,1968年生,主任技师,主要从事临床生化、免疫学检验工作。

Predictive values of red blood cell distribution width and myocardial markers for acute myocardial infarction in patients with CAS

MA Jianguo1, ZHU Xiaolin1, DING Yongguang2, YIN Meng1, LI Hongchun3()   

  1. 1. Department of Clinical Laboratory,Zhongxing Hospital of Shuyang,Suqian 223600,Jiangsu,China
    2. Department of Cardiology,Zhongxing Hospital of Shuyang,Suqian 223600,Jiangsu,China
    3. School of Medical Technology,Xuzhou Medical University,Xuzhou 221000,China
  • Received:2022-03-18 Revised:2022-09-19 Online:2022-12-30 Published:2023-02-02
  • Contact: LI Hongchun,E-mail:56834997@qq.com。

摘要:

目的 探讨红细胞平均分布宽度(RDW)对冠状动脉粥样硬化(CAS)患者发生急性心肌梗死(AMI)的预测价值。方法 选取CAS患者600例。收集所有患者的临床资料,同时检测RDW、心肌肌钙蛋白I(cTnI)、肌酸激酶MB同工酶(CK-MB)和血脂项目。对所有患者随访5年,随访终点为发生AMI、死亡或随访结束。采用受试者工作特征(ROC)曲线评估各项指标判断CAS患者发生AMI的效能。采用Kaplan-Meier生存曲线分析各组AMI发生率的差异,采用Cox回归分析评估CAS患者发生AMI的危险因素。结果 600例CAS患者中,有450例完成随访,其中有32例发生AMI。RDW、CK-MB、cTnI单项检测和联合检测判断CAS患者发生AMI的曲线下面积(AUC)分别为0.747、0.722、0.714、0.774。根据ROC曲线得出的RDW最佳临界值将所有CAS患者分为RDW≥13.8%组与RDW<13.8%组。RDW≥13.8%组年龄、CK-MB、cTnI和AMI发病率均显著高于RDW<13.8%组(P<0.001),其他临床资料和血脂项目2个组之间差异均无统计学意义(P>0.05)。Kaplan-Meier生存曲线分析结果显示,RDW≥13.8%组AMI发生率显著高于RDW<13.8%组(P<0.001)。多因素Cox回归分析结果显示,校正年龄、性别、体质量指数、吸烟史、饮酒史和糖尿病史后,RDW升高是CAS患者发生AMI的独立危险因素[风险比(HR)=1.727,95%可信区间(CI)为1.492~1.998)。结论 RDW对预测CAS患者发生AMI有较高的临床价值,联合CK-MB和cTnI或可提高对CAS患者发生AMI的预测效能。

关键词: 红细胞平均分布宽度, 心肌肌钙蛋白I, 肌酸激酶MB同工酶, 冠状动脉粥样硬化, 急性心肌梗死

Abstract:

Objective To investigate the predictive values of red blood cell distribution width(RDW) for acute myocardial infarction(AMI) in patients with coronary atherosclerosis(CAS). Methods Totally,600 patients with CAS were enrolled. The clinical data of all the patients were collected,and RDW,cardiac troponin I(cTnI),creatine kinase MB isoenzyme(CK-MB) and lipid levels were determined. All the patients were followed up for 5 years,and the end points were AMI,death or the completion of follow-up. Receiver operating characteristic(ROC) curve was used to evaluate the value of each indicator in determining the occurrence of AMI in CAS patients. Kaplan-Meier survival curve analysis was used to analyze the differences in the occurrence of AMI among all the groups,and Cox regression analysis was used to evaluate the risk factors of AMI in CAS patients. Results Follow-up was completed in 450 of 600 CAS patients,32 of whom developed AMI. The areas under curves(AUC) of RDW,CK-MB and cTnI single and combined determination for AMI in CAS patients were 0.747,0.722,0.714 and 0.774,respectively. All the CAS patients were classified into RDW≥13.8% and RDW<13.8% according to the optimal cut-off value of RDW obtained by ROC curve. The age,CK-MB,cTnI and the occurrence of AMI in RDW≥13.8% group were higher than those in RDW<13.8% group(P<0.001). There was no statistical significance in the other clinical data and blood lipids between the 2 groups(P>0.05). Kaplan-Meier survival curve analysis results showed that the occurrence of AMI in RDW≥13.8% group was higher than that in RDW<13.8% group(P<0.001). Multivariate Cox regression analysis showed that elevated RDW was an independent risk factor for AMI in CAS patients after adjusting for age,sex,body mass index,smoking history,alcohol consumption history and diabetes mellitus history [hazard ratio(HR)=1.727,95% confidence interval(CI) 1.492-1.998]. Conclusions RDW has clinical value in predicting the occurrence of AMI in patients with CAS,and the combination of CK-MB and cTnI may improve the predictive efficiency of the occurrence of AMI in patients with CAS.

Key words: Red blood cell distribution width, Cardiac troponin I, Creatine kinase MB isoenzyme, Coronary atherosclerosis, Acute myocardial infarction

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