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Related Experiment Videos

Semibiological left heart assist.

E Bodnar, D N Ross

    Artificial Organs
    |February 1, 1981
    PubMed
    Summary
    This summary is machine-generated.

    This study shows a semibiological left heart assist device performs well in animal trials up to 24 hours. The device can be used without anticoagulants, demonstrating minimal blood trauma during prolonged left ventricular-aorta bypass pumping.

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    Area of Science:

    • Cardiovascular Engineering
    • Biomedical Devices
    • Surgical Innovation

    Background:

    • Previous studies indicated good performance of semibiological left heart assist devices under simulated conditions.
    • The need for effective and safe long-term circulatory support devices remains critical in treating heart failure.

    Purpose of the Study:

    • To evaluate the performance and safety of a semibiological left heart assist device during prolonged in vivo application.
    • To assess the feasibility of using the device without systemic or local anticoagulation.

    Main Methods:

    • Conducted 50 animal experiments utilizing a semibiological left heart assist device for left ventricular-aorta bypass pumping.
    • Varied the duration of bypass pumping from 2 to 24 hours across experiments.
    • Monitored for systemic/local anticoagulant requirements and assessed blood trauma indicators.

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    Main Results:

    • The semibiological left heart assist device demonstrated effective performance throughout the bypass duration.
    • Successful implantation and operation were achieved in all 50 animal experiments.
    • No systemic or local anticoagulants were required for device use.
    • Negligible blood trauma was observed, even after 24 hours of continuous pumping.

    Conclusions:

    • The semibiological left heart assist device is a viable option for prolonged circulatory support.
    • The device can be safely used in vivo for up to 24 hours without anticoagulation, with minimal blood trauma.
    • Further clinical investigations are warranted to translate these findings to human patients.