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Related Experiment Videos

[Vascular spasms in microsurgery].

H P Bruch, M Hörl, U Lanz

    Handchirurgie, Mikrochirurgie, Plastische Chirurgie : Organ Der Deutschsprachigen Arbeitsgemeinschaft Fur Handchirurgie : Organ Der Deutschsprachigen Arbeitsgemeinschaft Fur Mikrochirurgie Der Peripheren Nerven Und Gefasse : Organ Der V
    |July 1, 1987
    PubMed
    Summary
    This summary is machine-generated.

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    Hypoxia causes arterial spasms due to low energy and calcium influx. Phosphoenolpyruvate (PEP) can restore energy, preventing spasms and improving reperfusion for vascular injury treatment.

    Area of Science:

    • Vascular Biology
    • Biochemistry
    • Pharmacology

    Context:

    • Hypoxia and substrate deprivation induce arterial and venous spasms.
    • These spasms result from increased intracellular calcium and reduced cellular energy.
    • Existing conditions can lead to complications like the no-reflow phenomenon.

    Purpose:

    • To investigate the therapeutic potential of phosphoenolpyruvate (PEP) in reversing hypoxic vascular spasms.
    • To outline a multi-step therapeutic approach for managing vascular injuries.
    • To address the no-reflow phenomenon and its underlying mechanisms.

    Summary:

    • Phosphoenolpyruvate (PEP) administration replenishes cellular energy, counteracting spasms caused by hypoxia and substrate deprivation.
    • A proposed therapy involves PEP infusion, followed by vasodilators and rheological agents.

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  • Severe cases or those with autolytic processes may necessitate vessel resection, while the no-reflow phenomenon can be managed with plasminogen activators like urokinase or streptokinase.

    • Impact:

    • Provides a potential pharmacological solution for vascular spasms induced by ischemia.
    • Offers a structured therapeutic protocol for treating vascular injuries.
    • Suggests targeted treatments for specific complications such as the no-reflow phenomenon.