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[Combined disorders of the central and regional hemodynamics and microcirculation in myocardial infarct]

L A Leshchinskiĭ, V V Trusov

    Kardiologiia
    |November 1, 1977
    PubMed

    Insights

    This study on acute myocardial infarction reveals that hemodynamic changes correlate with damage severity. Regional blood flow alterations can cause organ hypoxia, independent of overall cardiac output reduction.

    Area of Science:

    • Cardiovascular Physiology
    • Myocardial Infarction Pathophysiology

    Context:

    • Acute myocardial infarction (AMI) significantly impacts cardiac function and systemic circulation.
    • Understanding hemodynamic alterations is crucial for managing AMI patients.

    Purpose:

    • To investigate central and regional hemodynamic changes in patients with acute myocardial infarction.
    • To correlate hemodynamic parameters with infarct size and assess their impact on organ function.

    Summary:

    • Radio-indication tests on 228 AMI patients showed central hemodynamics correlate with infarct size.
    • Regional hemodynamics did not consistently parallel cardiac output reduction.
    • Internal control factors and regional vessel tone significantly influence organ circulation.
    • Decreased intra-organic hemodynamics were often more pronounced than cardiac output reduction.
    • Hemodynamic changes are complex, non-linear, and vessel-specific.

    Impact:

    • Findings highlight that regional circulatory disturbances in AMI can lead to organ hypoxia and dysfunction.
    • The severity of AMI and complications influence the recovery of intra-organic hemodynamics.

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