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Percutaneous aspiration thromboembolectomy.

E E Starck, J C McDermott, A B Crummy

    Radiology
    |July 1, 1985
    PubMed
    Summary
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    Percutaneous aspiration thromboembolectomy (PAT) effectively restores blood flow in lower limb arteries, showing a 93% success rate. This technique is superior to traditional methods for smaller vessels below the inguinal ligament.

    Area of Science:

    • Vascular Surgery
    • Interventional Radiology

    Background:

    • Thromboembolic material in lower limb arteries obstructs blood flow, leading to potential limb ischemia.
    • Traditional embolectomy methods may have limitations in smaller distal vessels.

    Purpose of the Study:

    • To evaluate the efficacy and safety of percutaneous aspiration thromboembolectomy (PAT) as an angioplastic tool.
    • To compare PAT with existing methods for thromboemboli removal in lower limb arteries.

    Main Methods:

    • PAT was performed using a custom-designed catheter/sheath system.
    • Procedures involved PAT alone or in combination with balloon dilatation and/or local lytic therapy (streptokinase/urokinase).
    • Outcomes were assessed based on restoration of blood flow and clinical improvement.

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    Main Results:

    • PAT achieved a 93% success rate (42 of 45 procedures).
    • Significant clinical improvement was observed in most patients.
    • Only one below-the-knee amputation occurred, which could not be prevented by the intervention.
    • No patient experienced worsening of their condition due to PAT.

    Conclusions:

    • PAT is a highly effective and safe method for removing thromboemboli from lower limb arteries.
    • PAT demonstrates superiority over traditional techniques, such as the Fogarty catheter, in smaller vessels distal to the inguinal ligament.
    • The findings are supported by animal studies, reinforcing PAT's efficacy in treating peripheral arterial thromboembolism.