Obstructive struvite ureterolithiasis in 4-month-old intact male Bernese mountain dog.

A 4-month-old, 7 kg, intact male, Bernese mountain dog was presented for obstructive struvite ureterolithiasis. Multiple urethroliths, ureteroliths, and urocystoliths were present. Based on an abdominal ultrasound, there was severe left hydronephrosis and hydroureter from distal ureterolith obstruction, just proximal to the vesicoureteral junction. The dog was not azotemic. Successful treatment was accomplished via ventral cystotomy. Bladder wall culture revealed a methicillin-resistant Staphylococcus spp. No predisposing cause was identified. There are no known genetic predispositions in Bernese mountain dogs for struvite urolithiasis. The urinary tract infection resolved with surgical retrieval of the uroliths and antibiotic treatment. The dog remained clinically normal after the cystotomy but developed a subclinical urinary tract infection 4 mo post-operatively. Key clinical message: Urolithiasis is rare in pediatric veterinary patients. To the authors' knowledge, this is the first report of obstructive ureterolithiasis in a puppy. There is no known genetic predisposition for urolithiasis in Bernese mountain dogs. Copyright and/or publishing rights held by the Canadian Veterinary Medical Association.

Citation

Jennifer Ho, Justin Lavallée. Obstructive struvite ureterolithiasis in 4-month-old intact male Bernese mountain dog. The Canadian veterinary journal = La revue veterinaire canadienne. 2022 May;63(5):504-509

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PMID: 35502263

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