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  • Title: The efficacy of percutaneous transluminal angioplasty in the treatment of infrainguinal vein bypass graft stenosis.
    Author: Alexander JQ, Katz SG.
    Journal: Arch Surg; 2003 May; 138(5):510-3; discussion 513. PubMed ID: 12742954.
    Abstract:
    HYPOTHESIS: Percutaneous angioplasty would provide a durable alternative to surgical revision in the treatment of infrainguinal vein graft stenosis. DESIGN: Outcome analysis of the results of percutaneous angioplasty of infrainguinal vein graft stenosis. SETTING: Academic vascular surgical practice in a university-affiliated community hospital. PARTICIPANTS: All patients undergoing percutaneous intervention for infrainguinal vein graft stenosis from January 1, 1995, to May 31, 2002, were enrolled in the study. INTERVENTIONS: Lower extremity arterial reconstruction was performed by one of us. Proximal and distal sites of graft placement were identified, as well as the conduit used. Percutaneous angioplasty was performed on grafts by 1 of 4 interventional radiologists. Criteria for intervention and the anatomic location of intervention were noted. Morbidity from percutaneous intervention was also determined. MAIN OUTCOME MEASURES: Success and durability of percutaneous angioplasty were determined by clinical follow-up, duplex surveillance, and arteriography. Failure was defined as duplex ultrasonographic or arteriographic documentation of stenosis of 75% or greater. Kaplan-Meier life table analysis was applied to all grafts in the study. RESULTS: Ninety-four patients with 101 grafts were included in the study. Nearly 35% of angioplasties had failed at 6 months, 53.6% had failed at 12 months, 60.6% had failed at 24 months, and 75.1% had failed at 36 months. Comorbid disease, use of anticoagulant medications, criteria for intervention, or anatomic location of percutaneous intervention did not affect patency. Eight angioplasties (7.9%) were associated with significant complications. CONCLUSIONS: Percutaneous angioplasty does not provide a durable solution to the problem of infrainguinal vein graft stenosis. Because of the high rate of complications, its routine use cannot be advocated.
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