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The relationship between brain surface elastance and brain reexpansion after evacuation of chronic subdural hematoma
1Department of Neurological Surgery, Okayama University Medical School, Japan.
Background:
Brain stiffness has been thought to be a factor affecting brain re-expansion after the evacuation of chronic subdural hematoma.
Methods:
As an index of brain stiffness, the pressure for compressing the brain using an ophthalmodynamometer was defined as brain-surface elastance. This elastance in 14 patients was measured and analyzed in relation to brain re-expansion.
Results:
Patients with an enlarged subdural space on computed tomography 1 month after the operation had higher elastance. There was a correlation between high elastance and high age.
Conclusions:
Measuring the elastance after evacuation of the hematoma may help predict the persistence of a subdural space.