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  • Title: Sciatic artery aneurysms: report of three cases and review of the literature.
    Author: Martin KW, Hyde GL, McCready RA, Hull DA.
    Journal: J Vasc Surg; 1986 Oct; 4(4):365-71. PubMed ID: 3761480.
    Abstract:
    Sciatic artery aneurysms (SAAs) develop in a persistent sciatic artery, which is a congenital anomalous continuation of the internal iliac artery and may be the major blood supply to the lower extremity. SAAs may appear clinically with rupture, thrombosis, distal embolization, or compression of the sciatic nerve. We have reviewed our three cases and the literature to delineate those factors that permit correct preoperative diagnosis and appropriate surgical intervention. Our three patients (aged 54 to 82 years) appeared with severe ischemia that resulted in above-knee amputations. The literature reveals 21 patients ranging in age from 35 to 84 years (58% were women). Twenty of those patients had operations, one of which resulted in death, and five in above-knee amputations. Unexplained sciatic or buttock pain, or a palpable "pulsating" buttock mass, suggests an SAA. The diagnosis is confirmed by angiography. The recommended treatment is femoropopliteal bypass grafting followed by ligature or percutaneous endovascular thrombosis of the aneurysm. Early diagnosis and correct surgical therapy are the keys to successful management of SAA.
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