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  • Title: Fibrinolytic activity and postoperative salvaged untreated blood for autologous transfusion in major orthopaedic surgery.
    Author: Krohn CD, Reikerås O, Bjørnsen S, Brosstad F.
    Journal: Eur J Surg; 2001 Mar; 167(3):168-72. PubMed ID: 11316399.
    Abstract:
    OBJECTIVE: To evaluate the fibrinolytic activity in a closed surgical wound, in postoperatively drained blood, and during autologous transfusion. DESIGN: Prospective study. SETTING: National hospital, Norway. PATIENTS: 9 patients operated on for thoracic scoliosis. MAIN OUTCOME MEASURE: Concentrations of plasmin/antiplasmin (PAP), alpha2-antiplasmin, and D-dimers in drained, arterial, and mixed venous blood before, during, and after infusion of 10 ml/kg body weight of postoperatively drained, untreated blood. RESULTS: In drained blood the concentration of alpha2-antiplasmin was 31% of the preoperative arterial control value. Together with the increased concentrations of PAP to 18076 microg/L and D-dimers to 126 mg/L, this indicates extensive fibrinolytic activity in the closed wound. The postoperative autologous transfusion of drained, untreated blood increased the concentration of PAP from 507 to 2453 microg/L and of D-dimer from 0.7 mg/L to 15.3 mg/L in systemic blood. CONCLUSION: The systemic concentration of fibrin(ogen) degradation products, indicated by D-dimers, after recirculation of drained, untreated blood might impair coagulation. The extensive activation of plasmin might exhaust available alpha2-antiplasmin in the wound and result in postoperative rebleeding.
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