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Prolonged dialyzer reuse.

M Kaye, R Gagnon, B Mulhearn

    Transactions - American Society for Artificial Internal Organs
    |January 1, 1984
    PubMed
    Summary
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    Dialyzer reuse up to 30 times maintained effective clearance of waste products like urea and creatinine. Automated reuse processes showed no adverse patient reactions, though neutropenia was consistently observed.

    Area of Science:

    • Nephrology
    • Biomedical Engineering
    • Clinical Medicine

    Background:

    • Dialyzer reuse is a cost-saving measure in hemodialysis.
    • Concerns exist regarding the safety and efficacy of reused dialyzers.

    Purpose of the Study:

    • To evaluate the safety and effectiveness of dialyzer reuse up to 30 times.
    • To assess the impact of reuse on solute clearance and patient reactions.

    Main Methods:

    • Analyzed clearance of urea, creatinine, phosphate, and vitamin B12 in reused dialyzers.
    • Measured residual formalin levels.
    • Monitored patient adverse reactions over several thousand dialysis sessions.
    • Observed for neutropenia in patients using automated reuse systems.

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    Main Results:

    • Solute clearance (urea, creatinine, phosphate, B12) remained consistent after up to 30 reuses.
    • Residual formalin levels were within acceptable safety limits.
    • No adverse patient reactions were attributed to dialyzer reuse.
    • Neutropenia was a consistent finding in patients using dialyzers prepared by automated reuse.

    Conclusions:

    • Dialyzer reuse up to 30 times is safe and effective for maintaining solute clearance.
    • Automated reuse processes may be associated with neutropenia, warranting further investigation.