Various types of Gianturco zig-zag wire stent were implanted into the tracheas of 4 dogs to define the suitable characteristics of the endotracheal wire stent in these animals. The stents were constructed of 0.45, 0.40, and 0.33 mm stainless steel wire. The diameter of the fully expanded stents was 3 cm and their lengths were 2, 3, and 4 cm. The 2 cm stent constructed of 0.33 mm wire showed minimum pathologic changes of the trachea of the dog compared to the other stents, and at the same time had a complete covering of ciliated columnar epithelium over the stent surface.
CharnsangavejV.CarrascoC. H.WrightK. C.: A new expandable metallic stent for dilatation of stenotic tubular structures. Experimental and clinical evaluation. Houston Med. J.3 (1987), 41.
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WallaceJ. M.CharnsangavejC.OgawaK.: Tracheobronchial tree. Expandable metallic stents used in experimental and clinical applications. Work in progress. Radiology158 (1986), 309.
