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Staged infrainguinal revascularization: initial prosthetic above-knee bypass followed by a distal vein bypass for recurrent ischemia. A valid concept for extending limb salvage?

, : Staged infrainguinal revascularization: initial prosthetic above-knee bypass followed by a distal vein bypass for recurrent ischemia. A valid concept for extending limb salvage?. American Journal of Surgery 152(2): 224-230

Optimal infrainguinal revascularization should provide limb salvage for the longest duration of time. It is not known whether limb salvage is longer with an initial below-knee popliteal or tibial in situ saphenous vein graft or with staged bypasses; that is, an initial above-knee popliteal prosthetic bypass if feasible, followed by a more distal vein graft should the above-knee prosthetic graft fail. A retrospective review of 197 lower extremity vascular reconstructions performed since 1976 utilizing polytetrafluoroethylene (PTFE), umbilical vein, or in situ saphenous vein was completed. The data were analyzed for differences in limb salvage and prevention of limb threatening ischemia among three subgroups: above-knee prosthetic bypass, below-knee or tibial in situ saphenous vein bypass, and staged reconstructions (above-knee prosthetic bypass with subsequent in situ bypass). The groups were similar with respect to severity of limb threatening ischemia as indicated by mean preoperative ankle-brachial indices. Cumulative secondary limb salvage at 36 months was 73 percent for prosthetic grafts in the above-knee position, 78 percent for in situ saphenous vein grafts in the below-knee or tibial position, and 87 percent for staged reconstruction with an initial prosthetic graft to the above-knee position followed by a distal in situ vein bypass when the prosthetic graft fails.


PMID: 3740361

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