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  • Title: Dilatation of aorto-bifemoral knitted Dacron grafts after a mean implantation of 5 years.
    Author: Swartbol P, Albrechtsson U, Pärsson H, Norgren L.
    Journal: Int Angiol; 1996 Sep; 15(3):236-9. PubMed ID: 8971582.
    Abstract:
    OBJECTIVE: To evaluate the dilatation-rate of a reverse locknitted Dracon graft. EXPERIMENTAL DESIGN: Comparative study, a follow-up after 5 years. SETTING: Department of Surgery, University Hospital. PATIENTS: During 1987 to 1990, 105 patients underwent elective aorto-bifemoral bypass surgery for aorto-iliac occlusive disease. Nineteen patients received a reverse locknitted Dacron graft. During follow-up in 1993 ten patients were available for evaluation of graft-diameter. For comparison 14 patients who received a wrap knitted Dacron graft (12 collagen impregnated and two uncoated) operated during the same time period were randomly chosen. INTERVENTION: CT-scan evaluation. RESULTS: A significantly lower increase (a mean aortic body dilatation of 6.8%) of the graft-size was found for this reverse locknitted Dacron (p < 0.001) compared to two wrap knitted Dacron grafts (collagen impregnated and uncoated knitted Dacron) (31.0% and 37.8% respectively). At the femoral level mean dilatation rates of respectively, 2.5%; 23.8% and 31.7% were found. Mural thrombus was observed in three grafts. No false aneurysms, graft degradation or graft occlusions were observed. CONCLUSION: It was concluded that reverse locknitted Dacron dilates to a minimum, however, further studies are needed to evaluate the relation of graft-composition/structure and dilatation.
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