| Cerebrospinal Fluid Lactic Acid in Infants and Children with Meningitis. |
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Heun Young Moon |
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Department of Medical Science, The Graduate School Yonsei University, Korea. |
| 소아의 뇌막염에서 뇌척수액 내의 유산량(乳酸量)에 관한 연구 |
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文憲永 |
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연세대학 의과대학 소아과학교실 |
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| Abstract |
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Prompt, precise differentiation between various forms of meningitis-aseptic, bacterial and tuberculous-is critical difficult problem for the practicing pediatrician. The present invesigation was carried out to assess the diagnostic usefullness of lactic acid levels in CSF. Fresh samples of CSF and blood were collected from 75 infant and children with meningitis and 25 normal children. CSF lactic acid. CSF sugar, blood lactic acid and blood sugar were estimated from them. These subjects were divided into 4 groups : Group 1 (normal-25 cases), Group 2 (aseptic meningitis-25 cases), Group 3 (purulent meningitis-20 cases), Group 4 (T.B. meningitis-30 cases). The results were as follows : 1. In normal gruop, CSF lactic acid was 5.8mg/dl and blood lactic acid was 7.1mg/dl, The ratio of CSF Lactic acid to blood lactic acid was approximately 0.8. 2. In Group 2. (aseptic meningitis), CSF lactic acid was 8.8mg/dl and blood lactic acid was 7.4mg/dl. The CSF value was slightly increased compare to normal CSF lactic acid levels. CSF suger and lactic acid were not correlated. 3. In the purulent meningitis group, CSF lactic acid was markedly increased to a significant level compare to the normal value. The mean was 36.4mg/dl. Blood lactic acid was 26.2mg/dl. 4. In T.B. meningitis, There as a mederate increase of lactic acid significantly ifferent from normal values. The mean was 25.8mg/dl. Blood lactic acid also increased. The mean was 18.9mg/dl. A positive linear correlation between CSF lactic acid and blood lactic was noted. 5. On the 3rd hospital day, CSF lactic acid level wsa approximately half level of the initial values inpurulent meningitis. It returned to normal level on 6th hospital day. In T.B. meningitis, CSF lactic acid also showeda decrease from the 5th hospital day. And returned to normal values on 20th hospital day. Concerning the above results, CSF lactic acid could be a possiblely be a good index in differential diagnosis of meningitis and in evaluation of it's clinical course. |
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