Use of an Absorbable Urethral Stent for the Management of a Urethral Stricture in a Stallion.
Abstract: To describe the successful management of a urethral stricture with an absorbable stent in a stallion. Methods: Clinical report. Methods: Stallion with a urethral stricture. Results: A 12-year-old Thoroughbred breeding stallion was evaluated for acute onset of colic. Uroperitoneum because of presumptive urinary bladder rupture, with urethral obstruction by a urethrolith, was diagnosed. The uroperitoneum was treated conservatively. The urethrolith was removed through a perineal urethrotomy. Approximately 15 weeks after urethrolith removal, the stallion presented with a urethral stricture. The stricture was unsuccessfully treated with an indwelling urinary catheter and 4 attempts at balloon dilation. Eight weeks after diagnosis of stricture, an absorbable polydioxanone (20 mm × 80 mm) urethral stent was implanted under percutaneous, ultrasound guidance. Urethroscopy was performed at 70, 155, and 230 days after stent placement and the endoscope passed through the affected site without complication. Urethroscopy at 155 days showed the stent had been reabsorbed. Follow-up 20 months after stent placement reports the stallion was able to void a normal urine stream. Conclusions: Absorbable urethral stent placement was a feasible treatment for urethral stricture in this stallion.
© Copyright 2016 by The American College of Veterinary Surgeons.
Publication Date: 2016-08-25 PubMed ID: 27558926DOI: 10.1111/vsu.12530Google Scholar: Lookup
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Summary
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The research paper covers the successful treatment of a urethral stricture in a stallion using an absorbable stent. This outcome was achieved despite an initial unsuccessful treatment using an indwelling urinary catheter and multiple attempts at balloon dilation.
Methods
- The study is based on a clinical report of a single case – a 12-year-old Thoroughbred stallion that initially presented with acute colic.
- The horse was diagnosed with uroperitoneum, a condition where urine leaks into the abdominal cavity, presumably due to a urinary bladder rupture. This was believed to have happened as a result of a urethrolith, a urinary stone, obstructing the urethra.
- The uroperitoneum was treated in a conservative manner, while the urethrolith was dealt with through an operation called a perineal urethrotomy (a surgical cut into the urethra through the perineum).
Results
- Approximately 15 weeks after the urethrolith removal, the stallion developed a urethral stricture. This was initially treated using an indwelling urinary catheter and four attempts at balloon dilation, but this proved unsuccessful.
- Eight weeks later, an absorbable polydioxanone urethral stent, measuring 20mm x 80mm, was implanted under ultrasound guidance. The stent gradually dissolves in the body, so it doesn’t need to be removed manually.
- Urethroscopy (a procedure where an endoscope is inserted into the urethra for examination) was performed at 70, 155, and 230 days after stent placement, and it was determined that the procedure had gone well with no complications at the affected site.
- At the 155-day mark, it was recorded that the stent had fully dissolved. A follow-up 20 months after the stent insertion showed that the stallion was able to urinate normally.
Conclusions
- The authors concluded that the use of an absorbable urethral stent had been successful for the treatment of urethral stricture in this particular stallion.
- This suggests that this method could be an effective treatment option for similar cases where conventional therapy methods prove ineffective.
Cite This Article
APA
Trela JM, Dechant JE, Culp WT, Whitcomb MB, Palm CA, Nieto JE.
(2016).
Use of an Absorbable Urethral Stent for the Management of a Urethral Stricture in a Stallion.
Vet Surg, 45(S1), O41-O48.
https://doi.org/10.1111/vsu.12530 Publication
Researcher Affiliations
- School of Veterinary Medicine, University of California-Davis, Davis, California.
- School of Veterinary Medicine, University of California-Davis, Davis, California.
- School of Veterinary Medicine, University of California-Davis, Davis, California.
- School of Veterinary Medicine, University of California-Davis, Davis, California.
- School of Veterinary Medicine, University of California-Davis, Davis, California.
- School of Veterinary Medicine, University of California-Davis, Davis, California.
MeSH Terms
- Absorption, Physiological
- Animals
- Horse Diseases / diagnosis
- Horse Diseases / surgery
- Horses
- Male
- Polydioxanone / chemistry
- Polydioxanone / therapeutic use
- Stents / veterinary
- Ultrasonography / veterinary
- Urethral Stricture / diagnosis
- Urethral Stricture / surgery
- Urethral Stricture / veterinary
Citations
This article has been cited 3 times.- Wuillemin F, Vachon C, Dunn M, Desrochers A. Management of obstructive urethroliths, urethral pseudodiverticulum, and stricture by diverticulectomy, urethroplasty, and urethral stenting placement in a male goat. Can Vet J 2023 Aug;64(8):733-741.
- Baltrimaite M, Kearney C, O'Brien A, Duggan M, Cuq B. Treatment of a urethral stricture by image-guided placement of a custom-made absorbable stent in a standing, sedated horse. J Vet Intern Med 2024 Sep-Oct;38(5):2795-2800.
- Skonieczna-Kurpiel J, Madej JP, Klekiel T, Mackiewicz A, Będziński R, Noszczyk-Nowak A, Piasecki T, Ceccopieri C. Histological and morphometrical evaluation of the urethral wall after bioresorbable stent implantation in male New Zealand White Rabbits: A preliminary study. Histol Histopathol 2024 Oct;39(10):1285-1294.
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