Cerebral Spinal Fluid Lactic Acid Following Circulatory Arrest

Abstract
CSF lactic acid rises quickly and then gradually declines toward normal after severe cerebral ischemia in the dog. In animals in whom recovery can be postulated, the increase in lactic acid would appear to be transitory, and more severe insults produce higher levels. The increase in blood levels of lactic acid occurs more rapidly than that in the CSF, and the blood level returns to normal sooner than the CSF.