Effectiveness of Retzius-Sparing Robot-Assisted Radical Prostatectomy in a Renal Transplant Recipient: a Case Report

Prostate cancer (PCa) has increased as a long-term outcome of advanced immunosuppression in renal transplant recipients (RTRs). Retzius-sparing robot-assisted radical prostatectomy (Rs-RARP) is reportedly less time-consuming and has a higher continence recovery rate than the standard RARP without increasing the risk of complications. However, only a few cases of Rs-RARP in RTRs have been reported.

A 65-year-old man, who received a renal transplant 2 years prior, was diagnosed with low-risk PCa, per the D'Amico risk classification system, and underwent Rs-RARP with the da Vinci Xi robotic system. All port sites were placed contralateral to the allograft and compared with the standard RARP. The operative time was 187 min, and the estimated blood loss was 100 mL. The urethral catheter was removed on postoperative day 7 after confirming the absence of leakage using voiding cystourethrography. The patient was discharged on postoperative day 8. Pathologic findings showed localized PCa with a Gleason score of 3 + 3 and negative surgical margins. One year after the surgery, the patient had adequate urinary continence. His prostate-specific antigen level was <0.01 ng/mL, and his renal function was similar to that before surgery.

We reported a case of PCa in an RTR, successfully treated via Rs-RARP, resulting in adequate continence without complications.