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Related Experiment Videos

[Complement activation in extracorporeal circulation. Comparison of nylon versus polyester bubble oxygenators].

P Colson, B Cosso, S Delpech

    Annales Francaises D'Anesthesie Et De Reanimation
    |January 1, 1987
    PubMed
    Summary

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    Nylon circuits did not significantly increase complement activation during cardiopulmonary bypass compared to polyester circuits. Bubble oxygenator material is unlikely to be a key factor in choosing equipment for coronary surgery.

    Area of Science:

    • Cardiovascular Surgery
    • Immunology
    • Biomaterials Science

    Background:

    • Complement activation is a known complication of cardiopulmonary bypass (CPB).
    • Nylon materials are suspected to particularly induce complement activation.
    • CPB may influence postoperative morbidity.

    Purpose of the Study:

    • To assess the influence of nylon versus polyester circuits on complement activation during CPB.
    • To compare complement factor levels (B, C3, C4) between nylon and polyester circuits.
    • To determine if bubble oxygenator material impacts complement activation during coronary surgery.

    Main Methods:

    • Prospective study comparing "nylon" (Bentley BOS 10) and "polyester" (Shiley S 100 A) circuits.
    • Measurement of total hemolytic complement and complement factors B, C3, and C4.

    Related Experiment Videos

  • Monitoring during anesthesia induction, surgical procedures, and CPB in coronary surgery patients.

    • Main Results:

    • Complement activation occurred early, with significant drops in factors B (15%), C3 (17%), and C4 (20%).
    • The alternative complement pathway activated before the classical pathway.
    • No statistically significant difference in complement activation was observed between nylon and polyester circuits during CPB.

    Conclusions:

    • Nylon material did not significantly increase complement activation during CPB compared to polyester.
    • Bubble oxygenator material is not a significant factor in choosing CPB equipment for coronary surgery.
    • Further research may explore other factors influencing complement activation during CPB.