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The coronary collaterals: their development, morphology, function, and classification.

S B Paster

    CRC Critical Reviews in Diagnostic Imaging
    |April 1, 1977
    PubMed
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    Coronary collaterals, crucial for bypass surgery, preserve heart function by limiting myocardial infarction. Understanding these vessels enhances patient evaluation for surgical interventions.

    Area of Science:

    • Cardiovascular Science
    • Medical Physiology

    Background:

    • Coronary collaterals play a vital role in maintaining myocardial function.
    • Their significance is particularly noted in the context of coronary artery disease and bypass surgery evaluations.

    Purpose of the Study:

    • To define coronary collaterals and explain their development and function in the normal heart.
    • To present a model of coronary collateral types, focusing on intracoronary and intercoronary anastomoses.
    • To discuss the controversial role of collateral function in coronary artery disease using recent in vivo studies.

    Main Methods:

    • Review and synthesis of existing literature on coronary collaterals.
    • Presentation of a conceptual model for classifying collateral types.
    • Analysis of recent angiographic in vivo studies.

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    Main Results:

    • Coronary collaterals, including intracoronary and intercoronary anastomoses, are defined and modeled.
    • Evidence suggests collaterals can limit myocardial infarction size and preserve myocardial function.
    • Collateral assessment aids in evaluating runoff and function for bypass surgery candidates.

    Conclusions:

    • Coronary collaterals are significant in preserving myocardial function and limiting infarct size.
    • Further research into collaterals will deepen our understanding of their clinical importance.
    • Collateral evaluation is essential for optimizing outcomes in patients considered for bypass surgery.