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Ureteric obstruction in stented renal transplants
W M Gedroyc1, G Koffman, A J Saunders
1Department of Radiology, Guy's Hospital, London.
British Journal of Urology
|August 1, 1988
Summary
Renal stents in kidney transplants can still lead to ureteric obstruction. Urine may flow around the stent, not just through it, highlighting potential complications and assessment needs.
Area of Science:
- Nephrology
- Urology
- Transplant Surgery
Background:
- Renal transplantation is a common procedure for end-stage renal disease.
- The use of ureteral stents in renal transplants has become routine to prevent obstruction.
- Despite routine stenting, transplant ureteric obstruction remains a clinical challenge.
Observation:
- This study details 7 cases of renal obstruction in patients with stented transplant ureters.
- These cases highlight a failure of the stent to ensure adequate urine flow.
- Obstruction occurred despite the presence of a ureteral stent.
Findings:
- The underlying causes of obstruction in stented transplant ureters were investigated.
- Recommendations for optimal radiological assessment of transplant ureteric stents are provided.
- A key finding suggests urine may bypass the stent lumen, flowing between the ureter and the stent.
Implications:
- The findings suggest that stent patency does not always guarantee ureteric patency.
- Urine flow may occur extraluminally, potentially leading to or masking obstruction.
- Improved radiological assessment is crucial for managing stented transplant ureters effectively.