心型脂肪酸结合蛋白超早期诊断对急性心肌梗死的应用价值

目的:探讨心型脂肪酸结合蛋白(H-FABP)在急性心肌梗死(AMI)超早期诊断中的准确度及其应用价值。方法:75例发病12h内入院的AMI患者作为研究组,其中发病在4h内29例,4~12h 46例;25例冠脉造影正常者入选对照组。采用双抗体夹心ELISA法定量测定待测血清H-FABP和肌钙蛋白(cTnI)值,并分别绘制两指标在AMI发病4h内、4~12h两组的特征曲线(ROC),比较曲线下面积(AUC)。并按推荐CUTOFF值计算敏感性、特异性、约登指数(Youden index)、阴性预测值(NPV)、阳性预测值(PPV)。结果:4h内H-FABP和cTnI比较,AUC、敏感性、约登指数、NPV差异有统计学意义(P<0.01);4~12h内H-FABP和cTnI比较,AUC、敏感性、约登指数、NPV差异均无统计学意义(P>0.05)。结论:H-FABP在AMI早期准确度高,在发病4~12h内,与cTnI一样是优秀的AMI诊断指标;而在4h以内诊断准确度及预测价值明显高于cTnI,非常有利于AMI尽早诊断与排除。

Diagnostic efficacy and value of heart-type fatty acid-binding protein in the super early hours of acute myocardial infarction

Objective:To evaluate the diagnostic efficacy and value of heart-type fatty acid-binding protein(H-FABP)in the super early hours of acute myocardial infarction(AMI).Methods:Seventy-five patients hospitalized within 12 hours after onset of chest pain and determined as AMI were enrolled in the study group.Among them,29 patients were sent to hospital within 4 hours of onset and others within 4 to 12 h.Twenty-five healthy peoples with normal coronary angiogram(CAG)were enrolled in the control group.The AH-FABP ...