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{'目的探讨心肌肌钙蛋白(CTnⅠ)在诊断急性心肌梗死(AMI)和不稳定心绞痛(UAP)的应用价值.方法对31例AMI和40例不稳定心绞痛(UAP)病人进行血清CTnⅠ、肌酸激酶(CK)和肌酸激酶同功酶(CK-MB)检测,并进行两组间比较分析.结果': [0], '31例AMI病人中29例病人血清CTnⅠ明显升高,40例UAP病人中仅2例血清CTnⅠ轻度升高.血清CTnⅠ诊断AMI的敏感性为96.7%,而CK和CK-MB的敏感性分别为80%、80%.血清CTnⅠ诊断AMI的特异性为94.4%,而CK-MB的特异性为77.7%、77.7%.CTnⅠ的敏感性和特异性显著高于CK和CK-MB(P<0.01).结论心肌肌钙蛋白Ⅰ对于AMI的诊断具有很高的敏感性和特异性,能早期诊断AMI.此外,CTnⅠ在鉴别急性心肌梗死和不稳定心绞痛也具有重要的临床价值,心肌肌钙蛋白Ⅰ是一种心肌损伤的特异性标志物.': [1]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W3029989370', 'counts_by_year': [], 'updated_date': '2024-09-18T09:46:39.052430', 'created_date': '2020-06-05'}