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Stress-induced heart failure.

W N Tapp, B E Levin, B H Natelson

    Psychosomatic Medicine
    |May 1, 1983
    PubMed
    Summary
    This summary is machine-generated.

    Stress induced heart failure in cardiomyopathic hamsters with underlying heart disease. Healthy hamsters did not develop heart failure, indicating covert heart disease exacerbates stress-induced cardiac pathology.

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    Area of Science:

    • Cardiology
    • Stress Physiology
    • Animal Models

    Background:

    • Cardiomyopathy can exist subclinically.
    • Stress is a known factor in cardiovascular events.
    • Understanding stress-induced heart failure requires appropriate models.

    Purpose of the Study:

    • To investigate the impact of stress on cardiomyopathic hamsters (CMHs) with subclinical heart disease.
    • To compare the effects of stress in CMHs versus healthy hamsters.
    • To determine if pre-existing covert heart disease alters the pathogenic consequences of stress.

    Main Methods:

    • Induction of stress in CMHs and healthy hamsters.
    • Observation and documentation of peripheral manifestations of heart failure.
    • Comparative analysis of stress response between the two groups.

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    Main Results:

    • Stress precipitated heart failure in CMHs.
    • CMHs displayed peripheral signs of heart failure, including edema and increased organ weight.
    • Stress did not induce heart failure in healthy hamsters.

    Conclusions:

    • Subclinical heart disease significantly predisposes individuals to stress-induced heart failure.
    • Covert cardiac conditions dramatically modify the pathological outcomes of stress.
    • Cardiomyopathic hamsters serve as a model for studying stress-exacerbated heart disease.