• Acad Emerg Med · Feb 1999

    Multicenter Study

    Minor head trauma in anticoagulated patients.

    • G Garra, A H Nashed, and L Capobianco.
    • Department of Emergency Medicine, Morristown Memorial Hospital, NJ 07962, USA.
    • Acad Emerg Med. 1999 Feb 1;6(2):121-4.

    ObjectiveTo determine the incidence of clinically significant intracranial injury in the anticoagulated patient suffering minor head trauma without loss of consciousness (LOC) or acute neurologic abnormality.MethodsA retrospective chart review was performed based on a computerized search of electronic patient records from six community hospital EDs, one of which is a trauma center. Patients taking warfarin who sustained minor head trauma without LOC having no acute neurologic abnormalities treated from January 1994 to January 1996 were identified using a search of electronic ED records. Charts were reviewed for mechanism of injury, physical examination findings of head injury, and concomitant injury. Prothrombin time and head CT results were recorded if obtained. For those patients not receiving a head CT on ED evaluation, telephone follow-up was performed to determine outcome.ResultsThere were 65 patients meeting inclusion criteria. Thirty-eight patients had prothrombin times obtained, with ranges from 12.0 sec to 30.7 sec. There was no intracranial injury found in any of the 39 patients having a head CT. Additionally, follow-up on the 26 patients who did not undergo CT scanning revealed no evidence of complications related to their head injuries.ConclusionsThe incidence of clinically significant intracranial injury is extremely low in the anticoagulated patient suffering minor blunt head trauma without LOC or acute neurologic abnormality. CT scanning may not be necessary in these patients. Larger prospective studies are needed to confirm these findings.

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