• Joseph Kim, Michelle M Gearhart, Andrew Zurick, Mario Zuccarello, Laura James, and Fred A Luchette.
• Department of Surgery, University of Cincinnati, Ohio, USA.
• J Trauma. 2002 Jul 1;53(1):38-42; discussion 43.

BackgroundProphylaxis for venous thromboembolism (VTE) in head injured patients has avoided heparin products because of concern for exacerbating intracranial bleeding. The purpose of this study was to evaluate the safety of unfractionated heparin (UFH) for VTE prophylaxis after traumatic brain injury.MethodsWe retrospectively evaluated the early use of UFH in patients sustaining a severe closed head injury (Abbreviated Injury Scale score > 3) from January 1, 2000, through December 31, 2000. Two groups were formed on the basis of the timing of UFH administration: within 72 hours of admission (Early group), or after the third day of hospitalization (Late group), if at all. Intracranial bleeding related to UFH administration was assessed by computed tomographic scan of the head and/or clinical examination.ResultsSixty-four of 76 patients with intracranial blood on admission head computed tomographic scan fulfilled study criteria. Seventy-three percent (n = 47) were in the Early group and 27% (n = 17) were in the Late group. None of the Early group had an increase in intracranial bleeding or deterioration on neurologic examination as a result of UFH administration. However, there was no statistical difference in VTE events between the two groups.ConclusionEarly use of UFH in the severe head injured patient does not increase bleeding complications.

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