BRAIN SWELLING FACTOR: A FAVORABLE PROGNOSTIC FACTOR OF COMPUTED TOMOGRAPHIC APPEARANCE OF POST-TRAUMATIC ACUTE SUBDURAL HEMATOMA
Abstract
Computed tomography (CT scan) used in diagnosis and management of 102 cases of post-traumatic acute subdural hematoma during January 1996 to December 1997 were analyzed. By measurement and calculating, the Brain Swelling Factor or difference between the midline shift and the hematoma thickness seems to be important prognostic factor. The midline structures are displaced not only by the space occupying subdural hematoma but also by the edematous processes on the injured side. When the midline shift exceeded the hematoma thickness, the survival rate was 31% (16/51) and when the hematoma thickness was greater than the midline shift, the survival rate was 65% (24/37).
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