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Reaction to Dacron Velour Bypass Graft

From the Department of Surgery, The George Washington University Medical Center, Washington, D.C. The search for the ideal conduit in vascular surgery continues. Autogenous veins remain the most acceptable graft for bypass procedures below the inguinal ligament. Synthetic grafts such as Dacron and Gortex are second choice for grafting procedures in the lower extremity and are the preferred material for procedures in the aorto-femoral and extra-anatomic location. An optimal prosthetic material should be chemically inert, should not excite inflammatory or foreign body response in the tissue and should not produce a state of allergy or hyper-sensitivity.~ In general it is desirable that