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CASE REPORT article
Front. Vet. Sci.
Sec. Veterinary Surgery
Volume 12 - 2025 | doi: 10.3389/fvets.2025.1543299
Case report: Long-term Complications of Subcutaneous Ureteral Bypass Migration in an Adult Female Papillon
Provisionally accepted- 1 Department of Veterinary Surgery, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea
- 2 Department of Veterinary Medicine, College of Veterinary Medicine, Jeju National University, Jeju, Jeju, Republic of Korea
- 3 Time Animal Medical Center, Daejeon, Republic of Korea
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.
Keywords: Ureteral Obstruction, Ureterolithiasis, Hydronephrosis, foreign body reaction, Dacron cuff
Received: 11 Dec 2024; Accepted: 24 Feb 2025.
Copyright: © 2025 Lee, Seo and Jeong. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Boram Lee, Department of Veterinary Surgery, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea
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