检验医学 ›› 2012, Vol. 27 ›› Issue (4): 280-283.

• 生物化学检验论著 • 上一篇    下一篇

心型脂肪酸结合蛋白在急性心肌梗死早期诊断中的价值

林高贵,孟凡超,赵春,曾云祥   

  1. 1.温州市第八人民医院,浙江 温州 325028;2.温州医学院检卫学院,浙江 温州 325000
  • 收稿日期:2012-01-13 出版日期:2012-04-30 发布日期:2012-04-09
  • 作者简介:林高贵,男,1974年生,主管技师,主要从事生物化学检验工作。
  • 基金资助:

    温州市鹿城区科技计划委资助项目(S10205)

The significance of heart-type fatty acid-binding protein for early diagnosis of acute myocardial infarction

  1. 1.The Eighth People′s Hospital of Wenzhou, Zhejiang Wenzhou 325028, China; 2.The Inspection Health Institute of Wenzhou Medical College, Zhejiang Wenzhou 325000, China
  • Received:2012-01-13 Online:2012-04-30 Published:2012-04-09

摘要: 目的  探讨心型脂肪酸结合蛋白(H-FABP)在急性心肌梗死(AMI)早期诊断中的价值。方法  选择以胸痛为主要表现、疑似AMI就诊的患者144例(有90例确诊为AMI,其余54例为疑似组),使用酶联免疫吸附试验(ELISA)测定发病3 h内、6 h后的血清H-FABP、心肌肌钙蛋白I(cTnI)、肌酸激酶同工酶(CK-MB),比较其在AMI早期的敏感性、特异性、诊断正确性。同时选取年龄、性别相仿的60名健康体检者作为正常对照组。结果  在发病3 h内,AMI组H-FABP水平为(56.13±19.17) ng/mL,明显高于疑似组[(11.46±4.85) ng/mL]和正常对照组[(3.14±1.52) ng/mL](P<0.01),并且其阳性率(91.11%)、敏感性(91.11%)、特异性(98.33%)、诊断正确率(94.67%)、阳性预测值(98.80%)和阴性预测值(88.24%)均明显优于cTnI(13.33%、13.33%、96.67%、48.00%、85.71%、43.48%)和CK-MB(21.11%、21.11%、95.00%、52.67%、86.36%、48.80%)(P<0.05、P<0.01)。而cTnI及CK-MB水平在发病6 h后AMI组才明显高于疑似组和正常对照组(P<0.01)。结论  在AMI发病早期(3 h内),H-FABP具有较高的敏感性、诊断正确率及阴性预测值,可以用于AMI的早期诊断。

关键词: 心肌脂肪酸结合蛋白, 肌钙蛋白I, 肌酸激酶同工酶, 急性心肌梗死

Abstract: Objective  To investigate the significance of heart-type fatty acid-binding protein (H-FABP) for the early diagnosis of acute myocardial infarction (AMI).  Methods  A total of 144 patients suffered chest pain as the main syndrome were enrolled in the study. The patients were AMI suspected (90 truth cases and 54 suspicion cases). By enzyme-linked immunosorbent assay (ELISA), serum samples were detected respectively within 3 h and after 6 h of chest pain onset. The H-FABP, cardiac troponin I (cTnI) and creatine kinase isozyme-MB (CK-MB) were detected, and the sensitivity, specificity and diagnostic accuracy in the early diagnosis of AMI were compared. Moreover, 60 healthy subjects with similar age and sex were as the control group. Results  The level of H-FABP[(56.13±19.17) ng/mL] in AMI group was obviously higher than those in the suspected group [(11.46±4.85) ng/mL] and the control group [(3.14±1.52) ng/mL]within 3 h (P<0.01). Furthermore, its seropositive rate (91.11%),sensitivity (91.11%),specificity (98.33%), diagnostic accuracy (94.67%), positive predictive value (98.80%) and negative predictive value (88.24%) were obviously better than cTnI (13.33%,13.33%,96.67%,48.00%,85.71% and 43.48%) and CK-MB (21.11%,21.11%,95.00%,52.67%,86.36% and 48.80%)(P<0.05,P<0.01). The cTnI and CK-MB levels in AMI group were obviously higher than those in the suspected group and the control group after 6 h (P<0.01). Conclusions  Within 3 h of AMI onset,H-FABP shows good sensitivity,diagnositic accuracy and negative predictive value. H-FABP can be used in the early diagnosis of AMI.

Key words: Heart-type fatty acid-binding protein, Cardiac troponin I, Creatine kinase isozyme-MB, Acute myocardial infarction