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Plasma Polymerized Tetrafluoroethylene/Polyethylene Terephthalate Vascular Prostheses
Howard P. Greisler, MD;
James W. Dennis, MD;
Thomas H. Schwarcz, MD;
John J. Klosak, MD;
Joan Ellinger;
Dae Un Kim, MD
Arch Surg. 1989;124(8):967-972.
Abstract
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• Tetrafluoroethylene (TFE) was discharged onto woven polyethylene terephthalate (PET) prostheses, and the PET prostheses (50 mm long) with or without TFE were implanted into canine carotid arteries and aortas. Additional controls included polytetrafluoroethylene and Dacron. Specimens were explanted after one to 12 months, photographed, and sectioned for light and scanning and transmission electron microscopy, and thrombus-free surface areas calculated by computerized planimetry. Results showed no significant patency differences among carotid or aortic groups. However, both PET carotid groups had significantly greater thrombusfree surface areas. Histologically, both PET groups appeared identical. An endothelialized neointima covered PET carotid specimens by six months, compared with three months in the aortic position, with greater pannus ingrowth in both PET groups. Plasma polymerized TFE offered no additional advantage in these long-term experiments.
(Arch Surg 1989;124:967-972)
Author Affiliations
From the Department of Surgery, Loyola University Medical Center, Maywood, Ill (Dr Greisler, Dennis, Schwarcz, and Klosak and Ms Ellinger); and Department of Pathology, St Barnabas Medical Center, Livingston, NJ (Dr Kim).
Footnotes
Accepted for publication Nov 3, 1987.
Reprint requests to Department of Surgery, Loyola University Medical Center, 2160 S First Ave, Maywood, IL 60153 (Dr Greisler).
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