Peer-reviewed veterinary case report
Long-term problems after ureteral bypass in female Papillon dog
By Lee, Boram et al.·Published in Frontiers in veterinary science·2025·Department of Veterinary Surgery, South Korea·View original on PubMed →
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Original publication title: Case Report: Long-term complications of subcutaneous ureteral bypass migration in an adult female Papillon.
Plain-English summary
A 6-year-old female Papillon was brought to the vet because she was vomiting. Tests showed she had kidney stones and swelling in her kidney, which led to high levels of waste products in her blood. After placing a special tube to help drain her kidney, her blood levels returned to normal. However, the tubes later moved out of place, causing complications. Eventually, the tubes were removed, and her kidney stones disappeared, showing that with careful monitoring and treatment, her condition improved significantly.
People also search for: Papillon vomiting · dog kidney stones treatment · ureteral bypass complications in dogs
Abstract
A 6-year-old spayed female 4.4-kg Papillon with only the left kidney presented with vomiting. Imaging unveiled ureterolithiasis and hydronephrosis, while serum chemistry displayed elevated creatinine, blood urea nitrogen, and C-reactive protein. Urinalysis revealed bacteria and bacterial phagocytes. After subcutaneous ureteral bypass (SUB) placement, kidney panels were normalized. The nephrostomy and cystostomy catheters had migrated into the renal parenchyma and bladder wall on postoperative day (POD) 212 and 369, respectively. As the migration advanced, they entered the ureter and bladder on POD 369 and 796, respectively. The SUB, excluding the nephrostomy catheter, was removed on POD 930 due to migration, obstruction, and extrusion of the SUB shunting port. On POD 937, creatinine and BUN levels remained normal. By POD 1063, the ureteroliths had disappeared. This case highlights the need for vigilant monitoring of catheter migration as a potential complication following SUB placement. Early identification and timely intervention are essential for reducing morbidity and improving patient outcomes.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/40144524/