April 1988

Clinical and Experimental Evaluation of Aortic Polytetrafluoroethylene Grafts for Aneurysm Replacement

Author Affiliations

From the Department of Surgery, Division of Vascular Surgery, University of Iowa, Iowa City (Dr Corson); the Departments of Surgery, Albany (NY) Medical College and Albany Veterans Administration Medical Center (Drs Shah, Kaufman, and Leather); and the Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY (Drs Reinhardt and Von Grondell).

Arch Surg. 1988;123(4):453-457. doi:10.1001/archsurg.1988.01400280059011

• The aortic expanded polytetrafluoroethylene bifurcation graft has a unique taper design. This was studied in an in vitro model using hydrogen bubbles and colored dyes to assess its hemodynamic significance compared with a conventional nontapered graft model. Under conditions of nonpulsatile flow the only significant differences were seen with a high percentage of occlusions of one outflow limb. Clinical experience with this new graft for infrarenal aneurysm replacement was accumulated in 163 elective cases and 53 emergency cases. The results with this new graft were compared with those obtained in the same time frame with alternative Dacron grafts. No detrimental problems with the graft have appeared in its use up to 78 months following aneurysm bypass or replacement.

(Arch Surg 1988;123:453-457)