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  • Title: Extra-anatomic bypass of failed traumatic arterial repairs.
    Author: Stain SC, Weaver FA, Yellin AE.
    Journal: J Trauma; 1991 Apr; 31(4):575-8. PubMed ID: 2020044.
    Abstract:
    Arterial injuries are best treated by primary repair or anatomically placed interposition grafts. Occasionally, these repairs fail due to adverse local factors, such as soft-tissue infection or enteric contamination. In these instances, limb salvage may require extra-anatomic arterial reconstruction. Between 1979 and 1989, 13 extra-anatomic bypasses were performed in ten male patients following nine failed primary repairs and one ligation of a traumatic arterial injury. The sites of arterial injury were: aorta (two), iliac (five), femoral (two), popliteal (one). Enteric contamination was present at initial operation in six patients; the remaining four had sustained massive soft-tissue injury. Reoperation was required for hemorrhage (seven), pseudoaneurysm (two), and arteriovenous fistula (one). All patients had developed local wound problems that militated against another anatomic repair. Extra-anatomic bypasses performed were: axillo-femoral (three), femoro-femoral (four), obturator (one), and two extra-anatomic femoral to popliteal saphenous vein grafts routed around an infected field. A second extra-anatomic reconstruction was performed for recurrent hemorrhage in three patients, (axillo-femoral--two, obturator--one). One patient with a neuropathic extremity and a functioning graft underwent amputation at 2 months following the initial injury. Two patients died of systemic sepsis. Seven patients (70%) have functional extremities with intact pulses at 2 to 24 months post bypass (mean, 7 months). Limb salvage after secondary disruption of secondarily infected arterial repairs can be achieved by appropriate extra-anatomic arterial reconstruction. In such cases, limb loss is due to soft-tissue sepsis or neuro-skeletal injuries and not vascular insufficiency.
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