Dacron arteries

DeBakey ME, Cooley DA, Crawford ES, et al. Clinical application of a new flexible knitted dacron arterial snhstitnte. Arch Surg 1958 77 713-24. 

R. Guidon, M. King, P. Blais, M. Marois, C. Gosselin, P. Roy, R. Courbier, M. David and H. Noel, A biological and structural evaluation of retrieved Dacron arterial prostheses , in NBS Special Publication 601 - Implant Retrieval ... 

Clarke JM, Pittilo RM, Nicholson LJ, Woolf N, Marston A. Seeding Dacron arterial prostheses with peritoneal mesothelial cells a preUminary morphological study. Br. J. Surg. 71 492-494,1984. 

The major area of application for plastics in bioscience is in the two areas indicated. The plastics make interesting materials to be used for mechanical implants into all living systems, including animals and plants where they can serve as repair parts or as modifications of the system. Figure 18-4 shows a variety of plastics used in hospitals. The other applications are based on the membrane qualities of plastics which can control such things as the chemical constituents that pass from one part of a system to another, the electrical surface potential in a system, the surface catalytic effect on a system, and in some cases the reaction to specific influences such as toxins or strong radiation. A Dacron artery is shown in Fig. 18-5. 

Kottke-Marchant K, Anderson J, Umemura Y, Marchant R. Effect of albumin coating on the in vitro blood compatibility of Dacron arterial prostheses. Biomaterials 1989 10 147-55. 

Polymeric materials explored as vascular gr resulting in woven and knitted Dacron arterial grafts of today. 

Vinard et al have reported on a series of failures of Dacron arterial prostheses, mostly arising because of false aneurysms or infection. Fibre breakage and thinning were obvious in scanning electron microscopy of these prostheses removed from patients. The strength of these explanted materials varied from 10 to 98% of the original strengths. 

Grafts are also frequently employed in the upper part of the body to reconstmct damaged portions of the aorta and carotid arteries. In addition, grafts are used to access the vascular system, such as in hemodialysis to avoid damage of vessels from repeated needle punctures. Most grafts are synthetic and made from materials such as Dacron or Teflon. Less than 5% of grafts utilized are made from biological materials. 

Schurmann K, Vorwerk D, Uppenkamp R, et al. Iliac arteries plain and heparin-coated Dacron-covered stent-grafts compared with noncovered metal stents-an experimental study. Radiology 1997 203(l) 55-63. 

The artificial heart, Jarvik-7, which has been successful in keeping a recipient alive for more than a year, has valves made from modified polypropylene and the two ventricles made of polyurethane supported on an aluminum base. For arterial replacements or bypass of clogged blood vessels, polyester fiber such as Du Font s Dacron remains the preferred material. 

Chandran, K.B., Gao, D., Han, G., Baraniewski, H., and Corson, J.D. 1992. Finite element analysis of arterial anastomosis with vein, Dacron and PTFE grafts. Med. Biol. Eng. Comp. 30 413-418. 

Vascular grafts are used in surgery to replace damaged thick arteries or veins 6 mm, 8 mm, or 1 cm in diameter. Commercially available vascular grafts are produced from polyester (e.g. Dacron) or PTFE (e.g. Teflon) with either woven or knitted structures... 

Figure 2.5 (a) Umbilical cord with central vein and smaller snrronnding arteries (left panel). This is clearly demonstrated on the microscopic view (right panel) (b) human umbilical cord vein manufactured as a vascular prosthesis including an outer Dacron mesh (c) retention of graft architecture with glutaraldehyde processing at 2 weeks, 8 months, and 2 years. 

Figure 2.11 Patient had undergone a femoral peroneal bypass using a Dacron graft (large arrow) with a distal arteriovenous fistula (dAVF) constructed at the distal anastomosis. The peroneal artery (P) runoff is depicted by an arrow and smaller arrows point to the venous return via the fistula that removes the overload to the distal circulation, enabling improved graft patency.

Jacobowitz GR, Kalish JA, Lee AM, Adehnan MA, Riles TS, Landis R. Long-term follow-up of saphenous vein, internal jugular vein, and knitted Dacron patches for carotid artery endarterectomy. Ann Vase Surg 2001 15 281-7. 

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