Nephrol Dial Transplant (1995) 10: 2101-2103
© 1995 European Renal Association-European Dialysis and Transplant Association
research-article
Nephrogenic metaplasia: long-term haemodialysis and anuria as potential risk factors and reversibility with renal transplantation
1Department of Urology, Princess Alexandra Hospital Woolloongabba, Queensland, Australia 2Department of Pathology, Princess Alexandra Hospital Woolloongabba, Queensland, Australia
Correspondence and offprint requests to: Correspondence and offprint requests to: Dr D. Nicol, Director of Urology and Renal Transplantation, Princess Alexandra Hospital, Ipswich Rd, Woolloongabba, Queensland 4102, Australia
AIM.: To determine the incidence of nephrogenic metaplasia in patients with defunctionalized bladders due to long-term end-stage renal failure on haemodialysis.
METHODS.: From the dialysis registry of the Princess Alexandra Hospital 13 anuric patients who had been on haemodialysis for 10 or more years were identified. Of these, seven were currently awaiting renal transplantation and six had successful transplants. Endoscopic assessment of their lower urinary tracts was performed.
RESULTS.: Three cases of nephrogenic metaplasia were identified. In one case this led to significant haematuria following transplantation. However, the changes of nephrogenic metaplasia disappeared over the subsequent 18 months without specific treatment.
CONCLUSIONS.: It appears that a chronically defunctionalized bladder in the presence of end-stage renal failure is associated with an increased risk of nephrogenic metaplasia. These changes may spontaneously regress following transplantation and restoration of bladder function.
Keywords: bladder; dialysis; end-stage renal failure; nephrogenic metaplasia; nephrogenic adenoma