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Related Experiment Videos

Histologic changes in preserved cadaveric renal transplants.

C Limas, D Spector, J R Wright

    The American Journal of Pathology
    |August 1, 1977
    PubMed
    Summary

    Kidney preservation methods impact transplant outcomes. Continuous pulsatile perfusion may cause intravascular coagulation (IVC) lesions, affecting early graft function, while hypothermia shows fewer adverse histologic changes.

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    Area of Science:

    • Nephrology
    • Transplant Surgery
    • Histopathology

    Background:

    • Kidney preservation is critical for transplant success.
    • Histologic changes can predict graft viability.
    • Comparing preservation techniques is essential.

    Purpose of the Study:

    • To compare histologic changes in human cadaveric kidneys preserved by hypothermia versus pulsatile perfusion.
    • To assess the impact of preservation methods on early post-transplant kidney histology and function.

    Main Methods:

    • Light and electron microscopy, and immunofluorescence on kidney biopsies.
    • Biopsies taken pre-transplant and 1 hour post-transplant.
    • Analysis of 15 pre-transplant and 41 post-transplant kidneys.

    Main Results:

    • Pre-transplant biopsies showed similar changes, except for foreign material in perfused kidneys.
    • Endothelial edema was more severe in non-perfused kidneys.
    • A lesion resembling intravascular coagulation (IVC) was found in 18/25 perfused kidneys but not in non-perfused kidneys.

    Conclusions:

    • The IVC lesion, likely due to perfusion-induced endothelial damage, is associated with transplant failure.
    • Milder IVC lesions may heal and be compatible with graft function.
    • Simple hypothermia appears to be a safer preservation method regarding early histologic changes.

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