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  • Title: Thromboelastometry as a supplementary tool for evaluation of hemostasis in severe sepsis and septic shock.
    Author: Andersen MG, Hvas CL, Tønnesen E, Hvas AM.
    Journal: Acta Anaesthesiol Scand; 2014 May; 58(5):525-33. PubMed ID: 24580049.
    Abstract:
    BACKGROUND: Sepsis leads to disruption of hemostasis, making early evaluation of coagulation essential. The aim of this study was to provide a detailed investigation of coagulation and the use of blood products in patients with severe sepsis or septic shock, admitted to a multidisciplinary intensive care unit. METHODS: Thirty-six patients with severe sepsis or septic shock were included in this prospective observational study. Blood samples and information on transfusion of blood products were obtained for up to 3 consecutive days, and day 7 if the patient was still in the intensive care unit. Thromboelastometry (ROTEM(®)), analyses of thrombin generation, and conventional coagulation tests were performed. RESULTS: ROTEM(®) revealed an overall normo-coagulable state among patients with severe sepsis or septic shock. Conventional coagulation analyses showed divergent results with hypercoagulable trends in terms of reduced antithrombin and acute phase response with increased fibrinogen and fibrin d-dimer, and on the other hand, coagulation disturbances with a decreased prothrombin time and prolonged activated partial thromboplastin time. This hypocoagulabe state was supported by a delayed and reduced thrombin generation. Twelve patients experienced 21 independent transfusion episodes with fresh frozen plasma. Of these, only five (22%) transfusions were performed because of active bleeding. CONCLUSION: ROTEM(®) demonstrated an overall normo-coagulation, whereas the conventional coagulation tests and thrombin generation analyses mainly reflected hypocoagulation. Given the dynamic and global features of ROTEM(®), this analysis may be a relevant supplementary tool for the assessment of hemostasis in patients with severe sepsis or septic shock.
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