Does vesicoureteric reflux result in renal allograft failure?

Area of Science:

• Nephrology
• Transplantation immunology
• Urology

Background:

• Vesicoureteric reflux (VUR) into transplanted kidneys is a potential complication.
• VUR is linked to glomerular lesions, proteinuria, and graft failure.
• Its prevalence and impact on late graft outcomes require further investigation.

Purpose of the Study:

• To determine the prevalence of VUR in a kidney transplant population.
• To assess the association between VUR and proteinuria in transplanted kidneys.
• To evaluate the impact of VUR on late renal allograft function and failure.

Main Methods:

• A cohort of 23 kidney transplant recipients with proteinuria and 27 controls without proteinuria were studied.
• Voiding cystourethrograms were performed approximately two years post-transplantation.
• Renal function and proteinuria levels were assessed in patients with detected VUR.

Main Results:

• Vesicoureteric reflux (VUR) was detected in only 8% of the transplant population.
• In three of the four detected VUR cases, renal function remained stable.
• Three of the four patients with VUR did not exhibit marked proteinuria.

Conclusions:

• VUR is infrequent in this kidney transplant cohort.
• The study does not support VUR as a frequent cause of late renal allograft failure.
• Further research may be needed to fully elucidate the long-term consequences of VUR in specific transplant scenarios.