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  • Title: Aortofemoral graft occlusion: strategy and timing of reoperation.
    Author: Erdoes LS, Bernhard VM, Berman SS.
    Journal: Cardiovasc Surg; 1995 Jun; 3(3):277-83. PubMed ID: 7655841.
    Abstract:
    The authors' experience with 46 patients treated over 8.5 years was reviewed to determine the optimal secondary revascularization procedure after occlusion of a unilateral aortobifemoral graft limb. A total of 64 procedures was performed on these patients to restore and maintain graft patency. Repetitive operations for reocclusion were needed in 14 patients (30%). Transcatheter thrombolytic therapy was used in 14 patients, four as sole therapy and 10 in conjunction with operation. The mean time from aortofemoral grafting to presentation with graft limb occlusion was 59.4 months. Rest pain or severe ischemia was present in 85%, and severe claudication in the remainder. Some 78% had urgent operation after diagnostic angiography and catheter-directed thrombolytic therapy was attempted in 22%. The etiology of graft thrombosis was outflow obstruction in 78.2% of cases. Inflow was obtained by surgical thrombectomy in 35 and by lytic therapy in 13. Extra-anatomic inflow was used in 11 and intra-abdominal thrombectomy or redo aortofemoral grafting in five. Outflow procedures, mainly profundaplasty, were performed in all but five cases (four urokinase and one surgical). Infrainguinal bypass was needed in 10 cases in addition to the groin reconstruction. Catheter-directed thrombolysis was successful in 13 of 14 instances; however, in nine of these residual stenosis was disclosed in the outflow requiring surgical repair. Ultimately, 12 of 14 cases treated with thrombolysis required surgical intervention. Cumulative patency for all procedures was 68%. Complications were seen in 14% of cases. Operative mortality was 5%, and limb salvage was obtained in 85%.(ABSTRACT TRUNCATED AT 250 WORDS)
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