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Related Experiment Videos

Fibrinolytic response to trauma.

D N Kapsch, M Metzler, M Harrington

    Surgery
    |April 1, 1984
    PubMed
    Summary

    Severe trauma impairs the body's ability to break down blood clots, leading to a hypofibrinolytic state. This fibrinolytic response is linked to injury severity and patient outcomes.

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    Area of Science:

    • Trauma and Surgical Hemostasis
    • Coagulation and Fibrinolysis Research
    • Emergency Medicine and Critical Care

    Background:

    • Trauma significantly impacts the body's coagulation system.
    • Understanding the fibrinolytic response to trauma is crucial for patient outcomes.
    • Previous research indicates a complex interplay between trauma severity and hemostatic changes.

    Purpose of the Study:

    • To investigate the fibrinolytic response to trauma in relation to injury severity.
    • To analyze coagulation parameters and fibrinolytic activity in trauma patients.
    • To correlate these findings with patient prognosis and survival.

    Main Methods:

    • Serial measurements of coagulation tests (prothrombin time, activated partial thromboplastin time, platelet count).
    • Quantification of fibrinogen, plasminogen, and fibrin degradation products.
    • Assays of euglobulin fraction fibrinolytic activity using plasminogen-rich and plasminogen-free fibrin plates.

    Main Results:

    • Trauma-related coagulopathy correlated with injury severity.
    • Initially depressed plasminogen concentrations normalized in survivors but remained elevated in non-survivors by 24 hours.
    • Increased fibrinolytic activity was observed in all groups, with the highest in non-survivors, followed by a complete absence of activity.
    • Survivors showed a return to baseline fibrinolytic activity, while non-survivors developed a hypofibrinolytic state.

    Conclusions:

    • Patients with severe trauma and poor outcomes exhibit a hypofibrinolytic state.
    • Elevated plasminogen and absent fibrinolytic activity in non-survivors suggest plasminogen activator depletion.
    • The fibrinolytic response to trauma is a critical determinant of patient survival.

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