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Related Experiment Videos

Pharmacological vasodilation during reconstructive vascular surgery.

T Sonnenfeld, R Cronestrand

    Acta Chirurgica Scandinavica
    |January 1, 1980
    PubMed
    Summary

    Papaverine and bamethane increase graft blood flow in a dose-dependent manner. Papaverine, at 40 mg injected into the popliteal artery, provides maximal intra-operative flow augmentation for femoro-popliteal bypass grafts.

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    Area of Science:

    • Vascular Surgery
    • Pharmacology
    • Cardiovascular Physiology

    Background:

    • Femoro-popliteal reversed saphenous vein bypass grafts are crucial for vascular reconstruction.
    • Optimizing intra-operative graft blood flow is essential for successful outcomes.
    • Vasodilatory agents are used to enhance blood flow during vascular procedures.

    Purpose of the Study:

    • To investigate the effects of papaverine and bamethane on graft blood flow.
    • To determine the optimal drug, dose, and injection site for maximal intra-operative flow augmentation.

    Main Methods:

    • Electromagnetic flowmetry was used intra-operatively in 31 patients.
    • Two vasodilatory drugs, papaverine and bamethane (Vasculat), were administered.
    • Dose-dependency and injection site effects (popliteal artery vs. common femoral artery) were evaluated.

    Main Results:

    • Both papaverine and bamethane demonstrated dose-dependent increases in graft blood flow (p < 0.01).
    • Papaverine (40 mg) induced a significantly greater flow increase than bamethane (100 mg) (p < 0.001).
    • Injection into the popliteal artery resulted in significantly higher graft blood flow compared to the common femoral artery for both drugs (p < 0.01).

    Conclusions:

    • Papaverine is recommended for maximal intra-operative flow augmentation in femoro-popliteal bypass grafts.
    • The optimal dose is 40 mg, administered directly into the popliteal artery or the graft itself.
    • Avoid intra-arterial injection into the common femoral artery or elsewhere for optimal results.

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