Resection of urachal anomalies in dogs with recurrent lower urinary tract disease

Vet Surg. 2020 Jan;49(1):214-221. doi: 10.1111/vsu.13311. Epub 2019 Aug 14.

Abstract

Objective: To determine whether surgical removal of urachal anomalies improves the outcomes of dogs with recurrent lower urinary tract disease (LUTD) and bacterial urinary tract infection (BUTI).

Study design: Retrospective study.

Animals: Thirty-three dogs with urachal anomalies and recurrent LUTD or BUTI.

Methods: Medical records of dogs with LUTD or BUTI and a diagnosis of urachal anomaly treated by partial cystectomy were reviewed. A minimum follow-up of 9 months was required for inclusion.

Results: Median age at onset of clinical signs was 12 months (range, 1 month to 10 years). Urachal anomalies were detected with histopathology in 20 of 28 (71%) dogs. At a median follow-up of 22 months (range, 9-114), 21 of 28 (64%) dogs were free of signs of LUTD. Nine (27%) dogs exhibited reduced signs of LUTD; in three (9%) dogs, no clinical improvement was observed. Among the 25 dogs with confirmed preoperative BUTI, 22 clinically improved with surgery.

Conclusion: Partial cystectomy reduced the long-term severity of clinical signs and risk of recurrence of LUTD or BUTI in dogs with confirmed or suspected urachal anomalies.

Clinical significance: Partial cystectomy should be considered as an adjunct to the treatment of LUTD and BUTI in dogs.

MeSH terms

  • Animals
  • Dog Diseases / etiology*
  • Dogs / abnormalities
  • Dogs / surgery*
  • Female
  • Lower Urinary Tract Symptoms / etiology
  • Lower Urinary Tract Symptoms / veterinary*
  • Male
  • Urachus / abnormalities
  • Urachus / surgery*