The Diagnosis and Prognostic Value of Admission Cardiac Troponin I on Acute Myocardial Infarction

Objective To investigate the value of admission cardiac troponin I(cTnI) levels in diagnosis and prognosis in patients with acute myocardial infarction(AMI).Methods The positive detection rate in patients of different courses before admission,and the incidence of the major cardiovascular events(MACE) during period of hospitalization were analyzed in 143 patients and the patients were folloed up for 3~12 months.Results The cTnI-positive rate was 98.9% in patients fallen ill from six hours to eight days.The admission cTnI Ievels(≥52.5 μg/L) and the death rate were significantly increased(P0.01),the total incidence of the MACE in cTnI-positive group was significantly increased than that in the negative group(P0.01).In patients treated by emergency stent such as medicine thrombolysis,or delayed stent,there was no difference in the total incidence of the MACE between two groups,however,the total incidence of the MACE in the positive group by drug treatment was significantly increased than that in the negative group.Conclusion The admission cTnI levels are an important evidences for AMI. The admission cTnI levels are correlated closely with the increase of the total incidence of the MACE.Patients with high cTnI levels(≥52.5 μg/L),and aged(≥70 years old) have high risk.Prognosis can be improved by early treatment.