Clinical Research Directory

Part1 Phase I-Laboratory calibration. The electrochemical method was employed to detect the fibrinogen concentration of standard quality control materials with varying concentration gradients, and the corresponding current values were recorded for constructing a standard curve of fibrinogen concentration. Phase II-Assay performance using clinical samples. Subject is 18 years and underwent routine hemostasis analysis. using human biological samples already collected for routine hemostasis analysis, The samples were centrifuged at 2500g for 15 min at room temperature, to obtain PPP (residual platelet count of \<10 × 10\^9/L) and stored at-20℃used for determination by electrochemical method within 2 weeks, Each clinical sample was tested three times Part2 Inclusion Criteria: Subject underwent surgery for acute type A aortic dissection at our hospital, Subject is 18 years, Subject requires routine TEG measurement, Subject use human fibrinogen concentrate during surgery. Exclusion Criteria: Use Extracorporeal Membrane Oxygenation after surgery, inability to obtain written informed consent