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KMID : 0359819930220090960
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Journal of Korean Neurosurgical Society
1993 Volume.22 No. 9 p.960 ~ p.967
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Significance of CT Scans in Mild Head Injury Patients
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허륭
배학근/도재원/이경석/배원경/윤일규/변박장
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Abstract
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The purpose of this study is to identify a group of mild head injury patients having lesions on computerized tomography (CT) and to investigate the risk factors affecting the abnormal findings on CT scan. The study was limited to patients 16
years
of
age and older with a initial Glasgow Coma Scale (GCS) scores of at least 13 at the time of admission.
Of a total of 243 patients studied, 156 (64.2%) had abnormal CT findings. 49 patients (20.2%) required neurosurgical intervention (craniogomies for hematoma in 33. Hematoma in 1 and subdural hygroma in 3). Four patients (2.4%) died of their
cranial
injury and three died of extracranial causes.
The incidence of CT abnormalities for each GCS score was 86.7% in GCS of 13. 68.6% in GCS of 14. And 58.6% in GCS of 15. The factors affecting GCS scores at the time of admission were the presence of loss of consciousness and posttraumatic
amnesia.
The
factors affecting abnormal CT scans were the presence of posttraumatic amnesia and skull fracture. A new lesion or extension of the initial finding on follow-up CT scns was found in 9.3% of 75 patients who underwent follow-up CT scans
Even though routine CT scans for mild head injury patients are not always necessary, these results suggest that all patients admitted ot hospital after mild head injruy should undergo CT scanning to enable early detection of an intracranial
lesion.
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KEYWORD
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