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Abstract
Initial laboratory and clinical evaluation of a new prosthetic material, expanded
microporous polytetraf uoroethylene (PTFE), for small vessel replacement is promising
and encourages further clinical trial. Frequently the autogenous saphenous vein is
not available for bypass procedures, and alternative arterial substitutes have not
proved reliable for replacement of small vessels. In this study, IS patients with
impending loss of limb and no available saphenous vein underwent revascularization
of the lower extremity with expanded microporous PTFE grafts. Thirteen of 15 patients
now demonstrate viable extremities with a resulting over-all early patency and limb
salvage rate of 87 percent for this series. Follow-up ranges from one to 8 months.
Seven patients had diabetes mellitus and eight had atherosclerotic heart disease.
Nine grafts crossed the knee joint. In all patients arterial runoff was poor. Six
patients had previous femoropopliteal bypasses, five with autogenous veins and one
with Dacron velour. Two patients had multiple previous operations that failed, first
with autogenous vein and later with fabric grafts. The current limb salvage and patency
rate of 87 percent in high-risk patients suggests that expanded PTFE may be the prosthesis
of choice when an autogenous vein is not available and possibly an equally good substitute
when the venous autograft is available.
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Article info
Publication history
Accepted:
September 5,
1975
Identification
Copyright
© 1976 Published by Elsevier Inc.