Clinical value of cardiac troponin I ( cTnI ) for the early diagnosis of acute myocardial infarction(AMI)

Objective To investigate the clinical value of cardiac troponin Ⅰ (cTnI) and creative kinas MB(CK-MB)for the early diagnosis of acute myocardial infarction (AMI).Methods The same serum sample was measured to detect the indexes of cTnI and CK-MB levels in 80 patients with AMI and 60 patients with unstable angina ( UA ).The indexes were analyzed and compared between the two groups.Results The sensitivity of cTnI was higher than that of CK-MB,and their positive rate were 63.8％ and 18.8％,respectively,there was significant differences (P ＜ 0.01 ).Conclusions cTnI,as specific markers of cardiac damage,is more sensitive and specific in the early diagnosis of AMI.As a convenient,swift and accurate measurement method,cTnI has significant clinical value. Key words: Myocardial infarction;  Cordiac troponin Ⅰ;  Diagnosis value