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Cellular immune functions after heart operations.

I Petri, G Kaiser, T Gaál

    Acta Chirurgica Academiae Scientiarum Hungaricae
    |January 1, 1981
    PubMed
    Summary
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    Heart surgery temporarily depresses immune cell function, including T cell counts and lymphocyte responses. Recovery is slower after open-heart procedures, indicating a significant impact on cellular immunity.

    Area of Science:

    • Immunology
    • Cardiovascular Surgery
    • Cellular Biology

    Background:

    • Cardiac surgery can significantly impact the immune system.
    • Understanding the effects of cardiopulmonary bypass on immune function is crucial.

    Purpose of the Study:

    • To investigate the impact of heart operations on mitogen stimulation and E-rosetting.
    • To assess changes in lymphocyte function and white blood cell counts post-surgery.

    Main Methods:

    • Blood samples were collected from eight patients before, during, and daily after heart surgery.
    • Mitogen stimulation and E-rosetting assays were used to evaluate lymphocyte function.
    • White blood cell (WBC) counts were monitored.

    Main Results:

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    • A depression in mitogen-stimulated lymphocyte transformation and T cell counts was observed post-surgery.
    • Total WBC count decreased, with lowest values occurring within three days after surgery.
    • Recovery of immune parameters was slower following open-heart surgery compared to closed procedures.

    Conclusions:

    • Heart operations, particularly open-heart surgery, lead to a temporary but significant depression of cellular immunity.
    • Immune function, including lymphocyte suppressor activity, is notably affected by surgical stress.