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Related Experiment Videos

The pony as a model for septic shock.

R F Sembrat, J Di Stazio, J F Stremple

    Advances in Shock Research
    |January 1, 1979
    PubMed
    Summary

    This study explored using ponies as a model for human septic shock. Septic ponies exhibited physiological changes consistent with low cardiac output septic shock, validating their use in research.

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    Area of Science:

    • Veterinary Medicine
    • Pathophysiology
    • Animal Models

    Background:

    • Septic shock is a life-threatening condition characterized by circulatory dysfunction.
    • Developing reliable animal models is crucial for understanding and treating septic shock.

    Purpose of the Study:

    • To evaluate the feasibility of using alert, conscious ponies as an animal model for septic shock in humans.
    • To characterize the physiological changes associated with induced septic shock in ponies.

    Main Methods:

    • Ten ponies were intravenously administered live Escherichia coli (E. coli) over one hour.
    • Hemodynamic parameters, blood gas values, glucose, and lactate levels were monitored.

    Main Results:

    • All ponies developed signs of low cardiac output septic shock and expired.
    • Significant decreases in cardiac index, white blood cell count, blood glucose, PaO2, and pH were observed.
    • Increases in systemic and pulmonary resistance, pulmonary pressures, intrapulmonary shunt, and lactate levels were documented.

    Conclusions:

    • The septic pony model demonstrated physiological alterations mirroring human low output septic shock.
    • This model shows promise for investigating septic shock pathophysiology and therapeutic interventions.

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