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Introduction: Urinary fistula is a rare complication following robot-assisted partial nephrectomy. For cases refractory to conservative treatment, only ureteral stent placement and percutaneous drainage are the established treatment alternatives. Case presentation: A 44-year-old man presented with urinary fistula 3 weeks after robot-assisted partial nephrectomy for right renal cell carcinoma. Follow-up observations were conducted for 2 weeks; however, no improvements were observed. Additionally, the patient did not improve following percutaneous drainage and ureteral stent insertion. Subsequently, the patient received percutaneous injections of fibrin glue, with the urinary fistula showing significant improvements on the following day. Conclusion: Our findings indicated that percutaneous fibrin glue injection can effectively treat refractory urinary fistula following partial nephrectomy.

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A 74-year-old man visited the urology clinic with the chief complaint of urinary retention in December 2014. Serum level of initial prostate specific antigen (PSA) was 50 ng/ml and he was diagnosed with Gleason Score 4＋4 prostate adenocarcinoma with regional lymphadenopathy (cT3aN1M0). PSA level had declined after the treatment with combined androgen blockade. In November 2018, he was diagnosed with castration resistant prostate cancer (CRPC) as local progression was detected by computed tomography (CT) while PSA level did not increase. Since local symptoms worsened, resulting in repeated hematuria after the treatment with enzalutamide, palliative radiation therapy to the prostate (45 Gy) was performed. Five months later, follow-up CT showed multiple metastasis in bilateral lung and left testicle. Serum level of neuron-specific enolase (NSE) was 24.4 ng/ml without an elevated in serum PSA level. He received rebiopsy of the prostate, but no malignant findings were observed. Consequently, bilateral orchiectomy was performed for diagnosis of left testicular tumor. Pathological examination revealed metastasis of neuroendocrine prostate cancer (NEPC). Chemotherapy using cisplatin and irinotecan was administered after orchiectomy. Complete response of lung lesions was achieved and serum level of NSE decreased within normal range. No recurrence has been confirmed for 4 years after the completion of chemotherapy.

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The patient, a 54-year-old woman, underwent a living donor kidney transplant at Osaka City University Hospital 7 years before the bariatric surgery. Her comorbidities were diabetes, sleep apnea, and severe obesity (weight 103 kg, body mass index [BMI] 36 kg/m2), and her diabetes was poorly controlled with an HbA1c of 8.5%. On admission, she weighed 99 kg, BMI was 34 kg/m2, Serum creatinine (S-Cre) was 1.54 mg/dL, and HbA1c was 7.1%. A laparoscopic sleeve gastrectomy was performed, and her weight decreased without complications during the perioperative period. She was discharged on postoperative day 28. Two months after surgery, her weight was 87 kg, BMI 30 kg/m2, S-Cre 1.34 mg/dL, HbA1c 6.7 %, renal function improved, urine protein decreased, and insulin dosage decreased dramatically. We report this valuable case because there are no reports of bariatric surgery in Japanese renal transplant recipients.

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A 31-year-old woman with autosomal dominant polycystic kidney disease (ADPKD) required antibiotic therapy for repeated renal cyst infections. The patient was scheduled for a living donor renal transplant with her mother as the donor. Two months before surgery, the patient was admitted to the hospital due to a severe renal cyst infection that improved with antibiotic treatment and percutaneous drainage, but the scheduled surgery was postponed. Transcatheter arterial embolization (TAE) was performed to control repeated renal cyst infections. Seven months after TAE, the patient underwent living donor renal transplantation. The postoperative course was uneventful, and the patient was discharged from the hospital on immunosuppressive medication 26 days after surgery with no evidence of recurrent infection or deterioration of renal function. Thirty months after transplantation, there has been no recurrence of infection.

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PURPOSE: To investigate the relationship between urodynamic study (UDS) data and recovery of urinary incontinence (UI) in elderly patients who underwent robot-assisted radical prostatectomy (RARP). MATERIALS AND METHODS: Seventy-five prostate cancer (PCa) patients received UDS before and at 3 months after RARP. They were divided into two groups; a younger group (<70 years old, n = 47) and older group (≥70 years, n = 28), and each was classified according to urinary continence (UC) or UI at 3 months post-RARP. Continence was defined as being pad-free or 1-safety pad usage per day. RESULTS: In the older group, preoperative maximum urethral closure pressure (MUCP) in the UI group was significantly lower than that in the UC group. Detrusor overactivity (DO) rate was significantly higher in the older UI group than in the older UC group at both pre- and 3 months post-RARP. Persistent DO rate pre- and post-RARP was significantly higher in the older group than in the younger group. Regardless of age, postoperative DO was an independent predictor of UI 6 months post-RARP. CONCLUSIONS: In elderly patients, low preoperative MUCP and both pre- and postoperative DO are associated with postoperative UI.

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