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Related Experiment Videos

The sequential external counter pulsator: a circulatory assist device.

R A Langou, L S Cohen

    The Yale Journal of Biology and Medicine
    |January 1, 1977
    PubMed
    Summary

    The sequenced counter pulsator, an external cardiac assist device, effectively increases cardiac output and blood pressure while reducing heart strain. This technology shows promise for treating low output syndromes in patients.

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    Area of Science:

    • Cardiovascular Science
    • Biomedical Engineering

    Background:

    • Cardiac assistance aims to maintain blood flow, reduce cardiac workload, and enhance oxygen supply to the heart.
    • Existing methods include vascular shunts, extracorporeal oxygenation, auxiliary ventricles, and counterpulsation techniques.

    Purpose of the Study:

    • To evaluate the efficacy of the sequenced counter pulsator as an external cardiac assist device.
    • To determine its potential therapeutic application in low output syndromes.

    Main Methods:

    • Laboratory investigation of the sequenced counter pulsator.
    • Assessment of its effects on cardiac output, systemic pressure, and ventricular end-diastolic pressure.

    Main Results:

    • The device demonstrated an increase in cardiac output.
    • It also showed an increase in diastolic systemic pressure.
    • A concomitant reduction in left ventricular end-diastolic pressure was observed.

    Conclusions:

    • The sequenced counter pulsator is a promising external cardiac assist device.
    • It appears clinically useful for managing patients with low cardiac output syndromes.

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