+ Clinical examination, recording vital signs when the patient is admitted to hospital: blood pressure, heart rate, echocardiography, Killip class, diagnosis non-ST-segment elevation myocardial infarction and stratification TIMI and GRACE risk score. + The test cardiac biological biomarkers hs-TnT, NT - proBNP and hs-CRP at 2 times: right at admission and aft er percutaneous coronary intervention after 24 hours.