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Home / Equine Research Bank / Vet Surg / Surgical Treatment of Iatrogenic Ventral Glottic Stenosis Us...
Veterinary surgery : VS2016; 45(4); 436-442; doi: 10.1111/vsu.12465

Surgical Treatment of Iatrogenic Ventral Glottic Stenosis Using a Mucosal Flap Technique.

Abstract: To describe a novel surgical technique for correcting postoperative ventral glottic stenosis (cicatrix or web formation) and the outcome in 2 Thoroughbred racehorses. Methods: Retrospective case report. Methods: Thoroughbreds diagnosed with ventral glottic stenosis (n=2). Methods: Horses presenting with iatrogenic ventral glottic stenosis and resultant exercise intolerance and abnormal exercise-related noise were anesthetized and a midline sagittal skin incision was made over the ventral larynx and between the sternohyoideus muscles overlying the cricothyroid notch. The cricothyroid ligament, attached laryngeal cicatrix, and overlying mucosa were sagittally sectioned at the dorsal aspect of the cicatrix on the left side. The laryngeal mucosa, cicatrix, and underlying cricothyroid ligament immediately rostral and caudal to the cicatrix were sectioned in a medial (axial) direction as far as the right side of the cricothyroid notch. After resection of the majority of the attached cicatrix tissue, the residual mucosal flap (attached to the right side of the larynx) was reflected ventrally and sutured to the attachment of the cricothyroid ligament on the right side of the cricothyroid notch, creating an intact mucosal layer on the right side of the ventral larynx. Results: Both horses had good intralaryngeal wound healing with minimal redevelopment of ventral glottic stenosis at 5 and 9 months postoperatively and were successfully returned to racing with complete absence of abnormal respiratory noise. Conclusions: The unique laryngeal anatomy of horses, with a cartilage-free ventral laryngeal area (cricothyroid notch), allowed the use of this novel surgical technique to successfully treat ventral glottic stenosis.
© 2016 The Authors. Veterinary Surgery published by Wiley Periodicals, Inc., on behalf of The American College of Veterinary Surgeons.
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Publication Date: 2016-03-25 PubMed ID: 27013024PubMed Central: PMC5071673DOI: 10.1111/vsu.12465Google Scholar: Lookup
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Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

This research article focuses on a new surgical method for treating postoperative ventral glottic stenosis (web formation in the vocal cords) in racehorses. Both horses studied showed good healing with minimal recurrent stenosis and were able to return to racing without abnormal respiratory noise.

Research Methodology

  • The research experimented with a unique surgical procedure for fixing ventral glottic stenosis, a condition developed after the operation that hinders the respiratory process in racehorses and causes irregular noise.
  • This retrospective case study involved two Thoroughbred racehorses diagnosed with the condition.
  • The horses were anesthetized, followed by a midline sagittal skin incision over the ventral larynx and between the sternohyoideus muscles overlying the cricothyroid notch.
  • The cricothyroid ligament, attached laryngeal cicatrix (scar tissue), and overlying mucosa were sagittally sectioned on the left side of the scar tissue.

Surgical Technique

  • The laryngeal mucosa, cicatrix, and the underlying cricothyroid ligament immediately rostral and caudal (before and after) the cicatrix were sectioned in a medial direction as far as the right side of the cricothyroid notch.
  • The majority of the attached cicatrix tissue was resected, and the residual mucosal flap (attached to the right side of the larynx) was reflected ventrally and sutured to the cricothyroid ligament’s attachment on the right side of the cricothyroid notch. This action created an intact mucosal layer on the right side of the ventral larynx.

Outcomes OF The Research

  • Both horses showed effective intralaryngeal wound healing and slight redevelopment of ventral glottic stenosis 5 and 9 months after surgery.
  • Subject horses were able to return to racing without any abnormal respiratory noise, indicating the success of the surgical operation.

Conclusions

  • The study concludes that the unique laryngeal anatomy of racehorses, specifically the cartilage-free ventral laryngeal area (cricothyroid notch), allows using this novel surgical technique
  • The method proved to be successful in treating ventral glottic stenosis, providing a potential new approach for treating this condition in racehorses.

Cite This Article

APA
Kane-Smyth J, Barnett TP, Mark O'Leary J, Dixon PM. (2016). Surgical Treatment of Iatrogenic Ventral Glottic Stenosis Using a Mucosal Flap Technique. Vet Surg, 45(4), 436-442. https://doi.org/10.1111/vsu.12465

Publication

Veterinary surgery : VS
ISSN: 1532-950X
NlmUniqueID: 8113214
Country: United States
Language: English
Volume: 45
Issue: 4
Pages: 436-442

Researcher Affiliations

Kane-Smyth, Justine
  • The Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Edinburgh, United Kingdom.
Barnett, Timothy P
  • The Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Edinburgh, United Kingdom.
Mark O'Leary, John
  • The Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Edinburgh, United Kingdom.
Dixon, Padraic M
  • The Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Edinburgh, United Kingdom.

MeSH Terms

  • Animals
  • Constriction, Pathologic / surgery
  • Constriction, Pathologic / veterinary
  • Female
  • Glottis / surgery
  • Horse Diseases / surgery
  • Horses
  • Iatrogenic Disease / veterinary
  • Laryngeal Diseases / surgery
  • Laryngeal Diseases / veterinary
  • Laryngeal Mucosa / surgery
  • Male
  • Physical Conditioning, Animal
  • Postoperative Complications / surgery
  • Postoperative Complications / veterinary
  • Retrospective Studies
  • Surgical Flaps / veterinary

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