Patients with traumatic intracranial hemorrhage (ICH) with a clinical indication for antithrombotic medication present a clinical dilemma, burdened by the task of weighing the risks of hemorrhage expansion against the risk of thrombosis. We sought to determine the effect of subdural hemorrhage on the risk of hemorrhage expansion after administration of antithrombotic medication. Medical records of 1626 trauma patients admitted with traumatic ICH between March 1, 2008, and March 31, 2013, to a Level I trauma center were retrospectively reviewed. The pharmacy database was queried to determine which patients were administered anticoagulant or antiplatelet medication during their hospitalization, leaving a sample of 97 patients that met inclusion criteria. Patients presenting with subdural hemorrhage were compared with patients without subdural hemorrhage. Demographic data, clinically significant expansion of hematoma, postinjury day of initiation, and mortality were analyzed. A total of 97 patients met inclusion criteria with 55 patients in the subdural hemorrhage group and 42 in the other ICH group. There were no significant differences in age, gender, injury severity score, admission Glasgow coma score, or mean hospital day of antithrombotic administration between the groups. Patients with subdural hemorrhage had a significantly higher rate of ICH expansion (9.1 vs 0%, P = 0.045). There was no difference in overall hospital mortality between the two groups. Incidence of ICH expansion was higher in patients with subdural hemorrhage. It may be prudent to use special caution when administering antiplatelet or anticoagulant medication in this group of patients after injury.
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