Abstract
The methods used in management of 102 femoral anastomotic aneurysms (FAAs) were analyzed, and a case control study was performed in an effort to define potential etiologic factors. Most FAAs resulted from host vessel degeneration, although broken sutures, infection, and prosthetic graft dilatation contributed in some cases. Patients forming FAAs after aortofemoral bypass more often were hypertensive, had progression of distal disease, and showed diffuse atherosclerosis when compared with control patients. The use of braided synthetic sutures, woven Dacron grafts, and concomitant femoral endarterectomy correlated with FAA development, whereas diabetes mellitus, multiple femoral operations, local wound-healing problems, and occlusion of the superficial femoral artery did not correlate with the formation of FAAs. Ninety FAAs (88%) were treated surgically with an operative mortality rate of 3%. The most common surgical technique was aneurysmectomy with interposition prosthetic graft replacement. Durability of the repair was better if a simultaneous outflow procedure was performed and if the reconstruction was done before complications developed. Complicated FAAs are still responsible for significant morbidity and loss of life despite aggressive surgical management. Elective FAA repair is the preferred method of treatment.
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