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Related Experiment Videos

Leukopenia, hypoxemia, and complement activation during a single hemoperfusion.

M Taccone-Gallucci, R Pericone, C De Carolis

    Artificial Organs
    |May 1, 1984
    PubMed
    Summary
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    Hemoperfusion using activated charcoal caused significant leukopenia (low white blood cell count) and hypoxemia (low oxygen levels) in uremic patients due to complement activation. These effects persisted throughout the procedure.

    Area of Science:

    • Nephrology
    • Immunology
    • Biomedical Engineering

    Background:

    • Hemoperfusion is a treatment for uremia.
    • Activated charcoal is used in hemoperfusion.
    • Potential side effects of hemoperfusion require investigation.

    Purpose of the Study:

    • To investigate the effects of hemoperfusion with activated charcoal on white blood cell count, acid-base balance, PO2, and complement function in uremic patients.

    Main Methods:

    • Studied five uremic patients undergoing hemoperfusion with activated charcoal.
    • Monitored white blood cell count, acid-base balance (pH, PCO2, HCO3-), PO2, and complement function (total hemolytic complement, alternative pathway activity, C3 and B cleavage fragments).
    • Measurements were taken at baseline, 20 minutes, and 60 minutes during hemoperfusion.

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    Main Results:

    • Marked leukopenia and hypoxemia were observed after 20 minutes of hemoperfusion.
    • Significant decrease in total hemolytic complement and alternative pathway activity, with detection of C3 and B cleavage fragments, indicating complement activation.
    • Parameters tended to increase after 60 minutes but did not return to baseline levels.
    • A direct correlation was found between leukopenia and reduced PO2.

    Conclusions:

    • Hemoperfusion with activated charcoal triggers complement activation in uremic patients.
    • This activation leads to adverse effects including leukopenia and hypoxemia.
    • The findings highlight the need for further research into managing these complications during hemoperfusion.