检验医学 ›› 2018, Vol. 33 ›› Issue (1): 15-19.DOI: 10.3969/j.issn.1673-8640.2018.01.003

• 临床应用研究·论著 • 上一篇    下一篇

采用ROC曲线评价NT-proBNP、cTnI、Hcy、DD、hs-CRP对冠心病的诊断价值

杨艳, 张福军, 沈松坤, 王厚照   

  1. 厦门大学附属成功医院检验科,福建 厦门 361003
  • 收稿日期:2017-05-15 发布日期:2021-03-18
  • 作者简介:null

    作者简介:杨 艳,女,1983年生,硕士,主管技师,主要从事临床免疫学和分子生物学检验工作。

NT-proBNP,cTnI,Hcy,DD and hs-CRP for the diagnosis of coronary heart disease by ROC curves

YANG Yan, ZHANG Fujun, SHEN Songkun, WANG Houzhao   

  1. Department of Clinical Laboratory,Chenggong Hospital,Xiamen University,Xiamen 361003,Fujian,China
  • Received:2017-05-15 Published:2021-03-18

摘要:

目的 采用受试者工作特征(ROC)曲线评价氨基末端B型钠尿肽原(NT-proBNP)、心肌肌钙蛋白I(cTnI)、同型半胱氨酸(Hcy)、D-二聚体(DD)和高敏C反应蛋白(hs-CRP)在冠心病诊断中的应用价值。方法 选取87例冠心病患者,其中急性心肌梗死(AMI)31例、不稳定型心绞痛(UAP)26例、稳定型心绞痛(SAP)30例,以40名体检健康者作为正常对照组。采用时间分辨免疫荧光法检测cTnI和NT- proBNP水平,免疫比浊法检测DD和hs-CRP水平,循环酶法检测Hcy水平。采用ROC曲线分析NT-proBNP、cTnI、Hcy、DD和hs-CRP诊断冠心病的曲线下面积(AUC)、最佳临界值、敏感性和特异性。结果 冠心病组NT- proBNP、cTnI、Hcy、DD、hs-CRP水平均明显高于正常对照组(P<0.05)。SAP组、UAP组、AMI组NT-proBNP、cTnI、Hcy、DD、hs-CRP水平依次升高,各组间差异均有统计学意义(P<0.05)。SAP组除hs- CRP水平明显高于正常对照组(P<0.05)外,其他4项指标2个组之间差异均无统计学意义(P>0.05)。NT- proBNP、cTnI、Hcy、DD和hs-CRP诊断冠心病的AUC分别为0.961、0.855、0.800、0.842、0.878。NT- proBNP的最佳临界值为321.00 ng/L,敏感性为85.1%、特异性为100.0%。结论 NT-proBNP、cTnI、Hcy、DD和hs-CRP均可作为诊断冠心病有价值的指标,其中 NT-proBNP的诊断价值最大。

关键词: 氨基末端B型钠尿肽原, 心肌肌钙蛋白I, 同型半胱氨酸, D-二聚体, 高敏C反应蛋白, 受试者工作特征曲线, 冠心病

Abstract:

Objective To evaluate the roles of N-terminal pro-B-type natriuretic peptide(NT-proBNP),cardiac troponin I(cTnI),homocysteine(Hcy),D-dimer(DD) and high-sensitivity C-reactive protein (hs-CRP) for the diagnosis of coronary heart disease by receiver operating characteristic (ROC) curves. Methods A total of 87 patients with coronary heart disease were enrolled. There were 31 cases with acute myocardial infarction (AMI),26 cases with unstable angina pectoris (UAP) and 30 cases with stable angina pectoris (SAP). Totally,40 healthy subjects were enrolled as healthy control group. The levels of NT-proBNP and cTnI were determined by time-resolved immunofluorescence,DD and hs-CRP were determined by immunoturbidimetric assay,and Hcy was determined by enzymatic cycling assay. ROC curves were used to analyze optimal cut-off values,areas under curves(AUC),sensitivities and specificities of NT-proBNP,cTnI,Hcy,DD and hs-CRP. Results The levels of NT- proBNP,cTnI,Hcy,DD and hs-CRP in coronary heart disease group were higher than those in healthy control group(P<0.05). The increases of NT-proBNP,cTnI,Hcy,DD and hs-CRP from low to high in turn were SAP group,UAP group and AMI group(P<0.05). The level of hs-CRP in SAP group was higher than that in healthy control group (P<0.05),and there was no statistical significance for the other 4 indicators between the 2 groups(P>0.05). The AUC of NT-proBNP,cTnI,Hcy,DD and hs-CRP in diagnosing coronary heart disease were 0.961,0.855,0.800,0.842 and 0.878,respectively. The optimal cut-off value of NT-proBNP was 321.00 ng/L,the sensitivity was 85.1%,and the specificity was 100.0%.Conclusions NT-proBNP,cTnI,Hcy,DD and hs-CRP can be used as valuable indicators in the diagnosis of coronary heart disease,and NT-proBNP is the most valuable.

Key words: N-terminal pro-B-type natriuretic peptide, Cardiac troponin I, Homocysteine, D-dimer, High-sensitivity C-reactive protein, Receiver operating characteristic curve, Coronary heart disease

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