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Cerebrospinal fluid white cell, glucose and protein changes during the treatment of Haemophilus influenzae meningitis
Insights
Cerebrospinal fluid (CSF) analysis in children with Haemophilus influenzae meningitis shows white blood cell counts decline slowly, while glucose normalizes quickly. Sequential CSF monitoring offers limited value for recovery after sterilization.
Area of Science:
- Pediatric Infectious Diseases
- Neuroscience
- Clinical Chemistry
Background:
- Haemophilus influenzae meningitis is a serious infection in children.
- Establishing reference values for cerebrospinal fluid (CSF) parameters during the convalescence period of meningitis is crucial for monitoring recovery.
- Existing reference values for CSF white blood cell (WBC) count, glucose, and protein are lacking for the recovery phase of H. influenzae meningitis.
Purpose of the Study:
- To determine the kinetics of CSF WBC count, glucose, and protein concentrations during the first 10 days of treatment for H. influenzae meningitis in children.
- To establish percentile distribution graphs for these CSF parameters during the convalescence period.
- To evaluate the utility of sequential CSF analysis in monitoring recovery from H. influenzae meningitis.
Main Methods:
- Analysis of 298 CSF samples from 116 children with H. influenzae meningitis.
- Sequential monitoring of CSF white blood cell (WBC) count, glucose, and protein concentrations.
- Presentation of data as percentile distribution graphs for the first 10 days of treatment.
Main Results:
- CSF WBC counts initially increased slightly then declined, but remained elevated above normal (<5/microliter) in most cases within 10 days.
- CSF glucose levels typically normalized or neared normal within 48 hours.
- CSF protein concentrations showed a steady decline throughout the treatment period.
- Extremely high WBC or low glucose levels indicated potential neurological complications or treatment failure.
Conclusions:
- Sequential CSF WBC, glucose, and protein levels provide limited, vague information for monitoring recovery from H. influenzae meningitis.
- Routine lumbar punctures after CSF sterilization may not be indicated due to the limited value of sequential monitoring.
- The kinetics observed provide preliminary reference data for the convalescence period of childhood H. influenzae meningitis.
Abstract:
298 cerebrospinal fluid (CSF) samples obtained from 116 children with ongoing Haemophilus influenzae meningitis were analyzed in order to determine the kinetics of the white blood cell (WBC) count and the glucose and protein concentrations--parameters for which there are no "reference values" available for the convalescence period of meningitis. The values determined during the first 10 days of treatment are presented as percentile distribution graphs. CSF WBC counts increased slightly for the first 24 h but declined thereafter without reaching, however, the normal value (less than or equal to 5/microliter) within 10 days in the majority of cases. Low CSF glucose concentrations usually increased to a normal or almost normal level within 48 h. CSF protein concentrations declined steadily throughout the treatment. Extremely high CSF WBC or low CSF glucose concentrations suggested neurological complications or treatment failure. The value of sequentially determined CSF WBC, glucose and protein in monitoring recovery from H. influenzae meningitis is, however, so vague that routine spinal taps do not seem indicated after CSF has become sterilized.
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