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Updated: May 18, 2026
Design of a Biocompatible Drug-Eluting Tracheal Stent in Mice with Laryngotracheal Stenosis
Published on: January 21, 2020
Use of nitinol stents for end-stage tracheal collapse in dogs
April M Durant1, Patricia Sura, Barton Rohrbach
1Department of Small Animal Clinical Sciences, University of Tennessee, Knoxville, TN 37996, USA. april_durant@yahoo.com
Objective:
To report bronchoscopic placement of nitinol stents (Vet Stent-Trachea®) for improvement of end-stage clinical signs in dogs with tracheal collapse.
Study Design:
Case series.
Sample Population:
Dogs (n = 18).
Methods:
Medical records (January 1, 2004-October 31, 2008) were searched for dogs with a diagnosis of tracheal collapse; 18 dogs met inclusion criteria. Tracheal diameter was compared before and after stent deployment. Stent dimensions were compared after stent deployment and at radiographic follow-up.
Results:
There was a significant difference in the minimum tracheal diameter when initial and post deployment tracheal diameters were compared (P = .003). Stent length was significantly shorter at follow-up when compared to post deployment measurements (P = .004). Owner assessment of outcome was available for all dogs with 11.1% mortality within 60 days. Complications were documented in 9 dogs.
Conclusions:
Use of a nitinol stent (Vet Stent-Trachea®) in dogs with end-stage tracheal collapse is associated with a fair to good outcome despite significant temporal stent fore shortening after bronchoscopic placement.
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