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Dogs
Successful treatment of a dog with recurrent nasopharyngeal stenosis using balloon dilation and a novel topical mitomycin delivery system
  1. Karen Tobias,
  2. Kryssa Johnson and
  3. Jacqueline Whittemore
  1. Small Animal Clinical Sciences, University of Tennessee, Knoxville, Tennessee, USA
  1. Correspondence to Dr Karen Tobias; ktobias{at}utk.edu

Abstract

A 1.5-year-old German shorthair pointer dog was presented with nasopharyngeal stenosis secondary to aspiration rhinitis. Stenosis had recurred after all previous treatments, including balloon dilation and oral steroids, uncovered metal stent placement and covered metal stent placement. Successful outcome was obtained after balloon dilation and two topical applications of mitomycin, delivered one week apart, using a novel delivery system. Rechecks of the nasopharynx were performed with an inexpensive WiFi endoscope that provided a retroflexed view of the area.

  • dogs
  • respiratory disease
  • nasal disease
  • treatment
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Footnotes

  • Contributors KT developed the infusion delivery system, obtained the WiFi borescope and assisted with its use, performed the mitomycin infusions and wrote the first and final draft of the paper. KJ evaluated the images, performed fluoroscopy during the first mitomycin infusion, wrote the radiology section of the paper and reviewed the final draft of the paper. JW performed the balloon dilations and retroflexed scoping, assisted with the mitomycin infusions and wrote the endoscopic portion of the paper.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Data availability statement No additional data are available.

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