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  • Title: Use of computed tomography of the head in the hypotensive blunt-trauma patient.
    Author: Winchell RJ, Hoyt DB, Simons RK.
    Journal: Ann Emerg Med; 1995 Jun; 25(6):737-42. PubMed ID: 7755193.
    Abstract:
    STUDY OBJECTIVE: To identify patients presenting with hypotension due to blunt trauma who should undergo computed tomography (CT) of the head before urgent chest or abdominal operation. DESIGN: Retrospective registry-based record review. SETTING: Urban Level I trauma center. PARTICIPANTS: Consecutive trauma patients with suspected head injury, blunt mechanism of injury, and hypotension who were discharged between January 1, 1989, and December 31, 1991. Patients who were dead on arrival or died within 15 minutes of arrival were judged unsalvageable and excluded. Review of 3,224 trauma patients identified 212 as the study population. INTERVENTIONS: Frequency of neurosurgical intervention or general surgical intervention within 6 hours of admission and the time required for completion of CT of the head were noted. RESULTS: Overall, 40 general surgical operations (19%) and 16 craniotomies (8%) were performed, with a mortality rate of 18%. Patients with Glasgow Coma Scale scores of less than 8 had a 19% rate of craniotomy, and those with scores between 8 and 13 had a 9% rate. Sixteen patients had CT before surgery, with an average delay of 68 minutes. No patient who responded to initial resuscitation experienced hemodynamic instability in the CT suite, including 15 patients with positive diagnostic peritoneal lavage. CONCLUSION: CT scan of the head before general surgical operation appears to be safe in patients who respond to initial resuscitation. The likelihood of craniotomy in patients with Glasgow Coma Scale scores of 13 or less is comparable to the likelihood of general surgical operation. Physicians should be encouraged to make CT of the head a high priority in this group.
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