The relationship between brain surface elastance and brain reexpansion after evacuation of chronic subdural hematoma.
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.
Fukuhara
T
T
Department of Neurological Surgery, Okayama University Medical School, Japan.
Gotoh
M
M
Asari
S
S
Ohmoto
T
T
Akioka
T
T
D000368:Aged; D001921:Brain / Q000503:physiopathology* / Q000601:surgery*; D004547:Elastic Tissue / Q000502:physiology*; D004548:Elasticity; D005260:Female; D006408:Hematoma, Subdural / Q000503:physiopathology* / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D013355:Subdural Space / Q000502:physiology*