心脏的 troponin -- 我(cTnI ) 并且 -T (cTnT ) 是心肌的损害的敏感、特定的标记。然而,在经皮的冠的干预(一种总线标准) 的增加的 cTnI 和 cTnT 的角色联系了心肌的损害遗体争论。在这未来,单个中心并且双窗帘学习,我们试图在一张中国人口在一种总线标准相关的心肌的损害象 cTnT (cTns ) 一样决定 cTnI 的诊断、预示的价值。有稳定的心绞痛和 non-ST-segment 举起的 1,008 个病人的一个总数急性冠的症候群被招募。cTnI 和 cTnT 的层次在一种总线标准前后被检验。所有病人被跟随在上面为 26 ±;观察主要不利心脏的事件(权标) 的发生的 9 个月。我们的结果证明那一种总线标准以后的 cTnI 或 cTnT 层次被增加到多于 99 th 百分位数在 133 的上面的参考限制(URL )(13.2%) 病人,(2.2%) 22 在之中是超过 5 ×;99 th 百分位数 URL。由 univariate 分析,在在一种总线标准以后的 cTns 的举起不是增加的权标的一个独立预言者, HR 1.35 (P ; = ;0.33, 95%CI:0.74-2.46 ) 。在结论,我们的数据证明一种总线标准相关的心肌的损害的发生不在一张中国人口是普通的,次要的提高的 cTns 层次不能是为权标的一个敏感预示的标记。
Cardiac troponin-I (cTnI) and -T (cTnT) are sensitive and specific markers of myocardial injury. However, the role of increased cTnI and cTnT in percutaneous coronary intervention (PCI)-related myocardial injury remains controversial. In this prospective, single-center and double-blind study, we aimed to determine the diagnostic and prognostic value of cTnI as well as cTnT (cTns) in PCI-related myocardial injury in a Chinese population. A total of 1,008 patients with stable angina pectoris and non-ST-segment elevation acute coronary syndrome were recruited. The levels of cTnI and cTnT were examined before and after PCI. All patients were followed up for 26± 9 months to observe the incidence of major adverse cardiac events (MACEs). Our results showed that post- PCI cTnI and/or cTnT levels were increased to more than the 99^th percentile upper reference limit (URL) in 133 (13.2%) patients, among which 22 (2.2%) were more than 5 × 99^th percentile URL. By univariate analysis, an elevation in cTns after PCI was not an independent predictor of increased MACEs, HR 1.35 (P = 0.33, 95% CI: 0.74-2.46). In conclusion, our data demonstrate that the incidence of PCI-related myocardial injury is not common in a Chinese population and minor elevated cTns levels may not be a sensitive prognostic marker for MACEs.