Abstract
The extent of edema related to infarction assessed by computed tomography was compared with the CSF[cerebrospinal fluid]-lactate concentration in patients with middle cerebral artery (MCA) infarction on the 1st, 3rd and 7th day following the stroke. A linear correlation between the extent of infarction edema and CSF-lactate level was most distinct on the 3rd day. CSF-lactate concentration on the 3rd day can be considered as a measure of the extent of the accompanying edema which reached its maximum at this time in comparison to the 1st and 7th day.