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Related Experiment Videos

Normal cerebrospinal fluid values in children: another look.

J M Portnoy, L C Olson

    Pediatrics
    |March 1, 1985
    PubMed
    Summary

    This study analyzed cerebrospinal fluid (CSF) from 371 patients, establishing normal white blood cell (WBC) counts across age groups. Findings highlight the importance of age-specific CSF WBC values for accurate clinical interpretation.

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    Area of Science:

    • Neurology
    • Clinical Pathology
    • Pediatrics

    Background:

    • Cerebrospinal fluid (CSF) analysis is crucial for diagnosing central nervous system (CNS) conditions.
    • Establishing normative data for CSF cell counts is essential for accurate interpretation.

    Purpose of the Study:

    • To determine normal ranges for white blood cell (WBC) counts in the CSF across different pediatric age groups.
    • To evaluate the distribution of polymorphonuclear and mononuclear cells in CSF.

    Main Methods:

    • Analysis of sterile CSF samples from 371 patients without evidence of CNS pathology.
    • Stratification of patients into five age categories.
    • Evaluation of white blood cell, polymorphonuclear, and mononuclear cell counts, with results presented as percentiles due to skewed distributions.

    Main Results:

    • CSF WBC counts were highest in younger age categories.
    • 25% of patients across all age groups had 2-3 WBCs/CSF.
    • No significant difference in CSF WBC count was observed between patients with and without seizures.

    Conclusions:

    • Normal CSF WBC values vary significantly by age.
    • Percentile-based reference ranges are necessary for interpreting CSF findings in different age groups.
    • CSF findings should be considered alongside clinical and other laboratory data.

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