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Perioperative complications of in-situ vein bypass

M X Gannon, M D Goldman, M H Simms

    Annals of the Royal College of Surgeons of England
    |May 1, 1986
    PubMed

    Insights

    In-situ vein bypass procedures for arterial disease show persistent complications, including arteriovenous fistulae and thrombosis, despite improvements. Careful technique and complication monitoring are crucial for evaluating in-situ bypass patency rates.

    Area of Science:

    • Vascular Surgery
    • Surgical Techniques
    • Arterial Disease Management

    Background:

    • Obliterative arterial disease necessitates advanced bypass procedures.
    • In-situ vein bypass is a technique aiming to improve outcomes for peripheral arterial disease.
    • Evaluating the specific complications associated with the in-situ bypass technique is essential for refining surgical practice.

    Purpose of the Study:

    • To review complications encountered in 146 in-situ vein bypass procedures.
    • To identify specific technical challenges and their impact on outcomes.
    • To assess the patency rates in relation to observed complications.

    Main Methods:

    • Retrospective review of 146 in-situ vein bypass cases.
    • Analysis of complications including vein wall injury, stenosis, arteriovenous fistulae, and thrombosis.
    • Comparison of complication rates and patency between femoropopliteal and femorocrural bypasses.

    Main Results:

    • Vein wall injury occurred in 4% of cases; 2 patients required vein patching.
    • Residual arteriovenous fistulae were observed in 16.5% of patients.
    • Perioperative thrombosis occurred in 20% of grafts, more frequently in femoropopliteal bypasses (23/80 vs. 6/66).
    • Immediate patency rates were 89% (femoropopliteal) and 94% (femorocrural) after correction of thromboses.
    • Cumulative one-year patency rates were 77.5% (femoropopliteal) and 79% (femorocrural).

    Conclusions:

    • Complications associated with the in-situ bypass technique persist, even with improved valve management.
    • Arteriovenous fistulae and graft thrombosis remain significant concerns.
    • Standardization of technique and meticulous complication tracking are vital for interpreting in-situ bypass patency data.

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