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Related Experiment Videos

The morphological consequences of thermosurgery.

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    Research in Experimental Medicine. Zeitschrift Fur Die Gesamte Experimentelle Medizin Einschliesslich Experimenteller Chirurgie
    |January 1, 1983
    PubMed
    Summary

    Thermosurgery, including electric coagulation and laser surgery, causes tissue carbonization and delayed wound healing. This is linked to temporary alterations in the immune system, specifically T-cell responses.

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    Area of Science:

    • Surgical Pathology
    • Immunology
    • Wound Healing Research

    Background:

    • Thermosurgery involves tissue thermal injury, leading to characteristic pathological changes.
    • Previous observations noted carbonization and necrosis following procedures like electric coagulation and laser surgery.

    Purpose of the Study:

    • To investigate the histopathological changes and wound healing processes after thermoinjury.
    • To explore the impact of thermoinjury on the immune system, particularly T-cell populations.

    Main Methods:

    • Examination of human tissue biopsies and rat organs subjected to thermocoagulation or laser surgery.
    • Histopathological analysis of tissue specimens at various time points post-injury.
    • Assessment of lymphoid tissue, specifically spleen, and lymphocyte activity.

    Main Results:

    • Observed black-brown carbonization and coagulation necrosis in various tissues (liver, urinary bladder, prostate).
    • Formation of granulation tissue with foreign body giant cells and granulomas persisting for over 3 months.
    • Development of fibrous scar tissue 6-8 weeks postoperatively.
    • Transient decrease in splenic T-lymphocyte numbers and labeling index within 2 days post-thermoinjury, followed by hyperplasia.

    Conclusions:

    • Thermosurgery induces significant tissue damage and delayed wound healing compared to other surgical methods.
    • The observed T-cell alterations suggest a temporary suppression of cell-mediated immunity post-thermoinjury.
    • Disturbed T- and B-lymphocyte cooperation with macrophages may contribute to delayed wound healing after thermoinjury.

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