Complete Recovery of Transplanted Kidney Function Two Months after Removal of Ureteral Stent: A Case Report

Urological complications after kidney transplantation(Tx) have been reported by many transplant centers. Most of surgical teams have planned for ureteral stent to prevent these urological complications especially urinary tract obstruction. In this report we present a 40-year-old woman who received a kidney allograft from a living unrelated donor(LURD) in May 1999. Because of disused small bladder, indication for ureteral stent was proved. Renal Tx was done without any intra-operative complications, such as hypertension or abnormal bleeding, but urinary output decreased from 8500 ml/24 hrs on the first post-operative day to 300 ml/24 hrs and patient remained oligotenuric for two months. After 3 months the patient referred with maintenance hemodialysis(HD) and then ureteral stent was decided to be removed under local anesthesia which surprisingly led to brisk dialysis. Renal function test declined and patient was discharged with good functioning graft and remained normal after 3-year follow-up. We conclude that ureteral obstruction due to ureteral stent malposition must be considered as a differential diagnosis of renal allograft dysfunction.