• Gaby Franschman, Sjoerd Greuters, Wim H Jansen, Linda M Posthuma, Saskia M Peerdeman, Mike P Wattjes, Stephan A Loer, and Christa Boer.
• Department of Anesthesiology, Institute for Cardiovascular Research, VU University Medical Center, Amsterdam, The Netherlands. g.franschman@vumc.nl
• Brain Inj. 2012 Jan 1;26(12):1464-71.

Primary ObjectiveTo investigate whether the development of coagulopathy at different stages after isolated traumatic brain injury (TBI) is associated with distinct cranial computed tomography characteristics.Research DesignRetrospective cohort study in 226 patients with moderate-to-severe isolated TBI who were categorized as subjects without coagulopathy or with acute temporary, acute sustained or delayed coagulopathy.Methods And ProceduresCoagulopathy was defined as an activated partial thromboplastin time >40 seconds and/or prothrombin time (PT) >1.2 and/or platelet count <120*10(9)l(-1). Cranial CT scans were assigned to the six-point Traumatic Coma Data Bank (TCDB) CT-classification.Main Outcomes And ResultsCoagulopathy occurred in 44% of patients in the first 24-hours post-trauma. Patients with acute, sustained coagulopathy showed a prolonged PT (1.64 ± 0.89) when compared to patients without (1.03 ± 0.07), acute temporary (1.27 ± 0.22) or delayed coagulopathy (1.08 ± 0.06; p < 0.05). Patients with acute temporary or delayed coagulopathy had the worst TCDB CT classification scores, while mortality rates were the highest in patients with sustained or delayed coagulopathy.ConclusionsNot only the mere presence of coagulopathy, but also the course of haemostatic alterations following neurotrauma may hold predictive value for patient outcome, irrespective of the severity level of cerebral injury.

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