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[The morphofunctional characteristics of the myocardium in acute cerebral ischemia]

A M Dolgov, A A Stadnikov

    Zhurnal Nevrologii I Psikhiatrii Imeni S.S. Korsakova
    |January 1, 1994
    PubMed

    Insights

    Brain ischemia rapidly impacts heart muscle. Morphological changes in the myocardium begin within one hour of ischemic events, affecting cellular structures like mitochondria and membranes.

    Area of Science:

    • Cardiovascular Pathology
    • Neurology
    • Cellular Biology

    Background:

    • Ischemic accidents, particularly hemispheric strokes, can trigger systemic complications.
    • The impact of brain ischemia on cardiac tissue morphology is not fully understood.

    Purpose of the Study:

    • To investigate the early morphofunctional changes in the myocardium following hemispheric ischemic accidents.
    • To determine the timeline and cellular targets of myocardial damage secondary to brain ischemia.

    Main Methods:

    • Post-mortem examination of myocardial tissue from human patients and a rat model.
    • Utilized light and electron microscopy to analyze cellular and subcellular structures.

    Main Results:

    • Morphological alterations in the myocardium were observed as early as 1 hour post-ischemia.
    • Affected cellular components included mitochondria, the contractile apparatus, transport systems, and cell membranes.

    Conclusions:

    • Hemispheric brain ischemia induces rapid and widespread morphological changes in the myocardium.
    • These early cardiac changes suggest a direct or indirect pathway linking brain injury to myocardial pathology.

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