Background: To analyse extracranial complications and basic variables in head-injury patients, such as Glasgow coma score (GCS), intracranial pressure (ICP) and cranial computerized tomography (CT), in relation to the outcome of these patients.
Patients And Methods: 64 consecutive patients (47 males and 17 females) with head injury, admitted from January 1992 to May 1994, were studied in this prospective study. Mean age was 37 +/- 18 years. Overall mortality was 23% (15/64). Student-t and Chi-square tests were used for statistical analysis, and p < 0.05 was considered statistical significant.
Results: Overall GCS was 7 +/- 3, survivors presenting GCS of 7.7 +/- 2.9 and non-survivors 4.7 +/- 1.5 (p = 0.04). CT were classified as follows: diffuse injury, 4 patients (7%); focal injury, 32 (53%), and mixed injury 24 (40%). Depending on the presence or absence of mesencephalic cisterns in the CT, GSC was 7.6 +/- 2.8 and 4.3 +/- 1.4, respectively (p = 0.04). Subarachnoid hemorrhage (SAH) was associated to a GCS of 6.3 +/- 2.5 and its absence to 8 +/- 3.3 (p = 0.03). The absence of mesencephalic cisterns and SAH were more frequent in the non-survivors, 72% and 32% (p = 0.01 and 0.04), respectively. ICP was recorded in 42 patients. Regarding to ICP, mortality was: 6.7% with ICP < or = 20 mmHg, 37% with ICP 21-30, 44% with ICP 31-40 and 67% with ICP > 50 mmHg (p = 0.03). Diabetes insipidus, cardiorespiratory arrest, shock, prolonged mechanical ventilation, SDRA and sepsis were the most frequent extracranial complications in non-survivors.
Conclusions: There is an association between the outcome of head-injury patients with the GCS and ICP values. Absence of mesencephalic cisterns and SAH were radiologic signs of poor prognosis. Patients who died had more extracranial complications.
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