Fibrinolysis During Liver Transplantation Is Enhanced by Using Solvent/Detergent Virus-Inactivated Plasma (ESDEP®)

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Abstract
After the introduction of solvent/detergent-treated plasma (ESDEP®) in our hospital, an increased incidence of hyperfibrinolysis was observed (75% vs 29%;P = 0.005) compared with the use of fresh frozen plasma for liver transplantation. To clarify this increased incidence, intraoperative plasma samples of patients treated with fresh frozen plasma or ESDEP were analyzed in a retrospective observational study. During the anhepatic phase, plasma levels of d-dimer (6.58 vs 1.53 μg/mL;P = 0.02) and fibrinogen degradation products (60 vs 23 mg/L;P = 0.018) were significantly higher in patients treated with ESDEP. After reperfusion, differences increased to 23.5 vs 4.7 μg/mL (d-dimer, P = 0.002) and 161 vs 57 mg/L (fibrinogen degradation products, P = 0.001). The amount of plasma received per packed red blood cell concentrate, clotting tests, and levels of individual clotting factors did not show significant differences between the groups. α2-Antiplasmin levels, however, were significantly lower in patients receiving ESDEP during the anhepatic phase (0.37 vs 0.65 IU/mL;P < 0.001) and after reperfusion (0.27 vs 0.58 IU/mL;P = 0.001). Analysis of α2-antiplasmin levels in ESDEP alone showed a reduction to 0.28 IU/mL (normal >0.95 IU/mL) because of the solvent/detergent process. Therapeutic consequences for the use of ESDEP in orthotopic liver transplantation are discussed in view of an increased incidence of hyperfibrinolysis caused by reduced levels of α2-antiplasmin in the solvent/detergent-treated plasma.