• J. Thromb. Haemost. · Feb 2007

    Diagnosis of early coagulation abnormalities in trauma patients by rotation thrombelastography.

    • L Rugeri, A Levrat, J S David, E Delecroix, B Floccard, A Gros, B Allaouchiche, and C Negrier.
    • Laboratory of Haemostasis, Edouard Herriot Hospital, Hospices Civils de Lyon and Claude Bernard University, Lyon, France. lucia.rugeri@chu-lyon.fr
    • J. Thromb. Haemost. 2007 Feb 1;5(2):289-95.

    BackgroundReagent-supported thromboelastometry with the rotation thrombelastography (e.g. ROTEM) is a whole blood assay that evaluates the visco-elastic properties during blood clot formation and clot lysis. A hemostatic monitor capable of rapid and accurate detection of clinical coagulopathy within the resuscitation room could improve management of bleeding after trauma.ObjectivesThe goals of this study were to establish whether ROTEM correlated with standard coagulation parameters to rapidly detect bleeding disorders and whether it can help to guide transfusion.MethodsNinety trauma patients were included in the study. At admission, standard coagulation assays were performed and ROTEM parameters such as clot formation time (CFT) and clot amplitude (CA) were obtained at 15 min (CA(15)) with two activated tests (INTEM, EXTEM) and at 10 min (CA(10)) with a test analyzing specifically the fibrin component of coagulation (FIBTEM).ResultsTrauma induced significant modifications of coagulation as assessed by standard assays and ROTEM. A significant correlation was found between prothrombin time (PT) and CA(15)-EXTEM (r = 0.66, P < 0.0001), between activated partial thromboplastin time and CFT-INTEM (r = 0.91, P < 0.0001), between fibrinogen level and CA(10)-FIBTEM (r = 0.85, P < 0.0001), and between platelet count and CA(15)-INTEM (r = 0.57, P < 0.0001). A cutoff value of CA(15)-EXTEM at 32 mm and CA(10)-FIBTEM at 5 mm presented a good sensitivity (87% and 91%) and specificity (100% and 85%) to detect a PT > 1.5 of control value and a fibrinogen less than 1 g L(-1), respectively.ConclusionsROTEM is a point-of-care device that rapidly detects systemic changes of in vivo coagulation in trauma patients, and it might be a helpful device in guiding transfusion.

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