ISSUE #04

It's Saturday time for your PSAWeekly. This week, we're bringing you a particularly interesting topic that may directly affect your practice, introducing a new approach you can incorporate during common general surgery procedures.

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Uro-Oncology
PI-RADS v2 and Adverse Prostate Cancer Outcomes: A Cross-cohort Replication Study Across Three Centers.

Magnetic resonance imaging (MRI) assessed through the Prostate Imaging-Reporting and Data System (PI-RADS) version 2 scoring system appears to carry meaningful prognostic weight for men with prostate cancer, according to a retrospective analysis drawing on data from three European tertiary hospitals in Helsinki (4,674 men), Tampere (1,159 men), and Lille (301 men). Across these cohorts, patients receiving a PI-RADS score of 5 at the time of diagnostic imaging faced substantially worse outcomes, with the Helsinki data revealing an 18-fold increase in prostate cancer–specific mortality risk after adjusting for confounders such as PSA, biopsy grade group, comorbidities, and treatment. The elevated risk tied to PI-RADS 5 persisted across additional endpoints, linking to poorer overall survival in both the Helsinki and Tampere groups and to shorter time to metastasis and biochemical recurrence in the Lille surgical cohort. Importantly, this prognostic signal remained independent of established markers like biopsy Gleason grade group and metastatic status, suggesting that standardized MRI interpretation contributes complementary information for identifying aggressive disease. The authors argue these findings reinforce the clinical value of incorporating PI-RADS v2 into contemporary risk stratification tools and treatment planning, although the retrospective design, limited number of mortality events outside Helsinki, and reliance on specialized European centers temper broader generalizability.

🔗Source: Shadbahr T, Pylväläinen J, Eineluoto J, et al. PI-RADS v2 and Adverse Prostate Cancer Outcomes: A Cross-cohort Replication Study Across Three Centers. European Urology Oncology. 2026. https://doi.org/10.1016/j.euo.2026.03.014

Transplant, Minimal Invasive Urological Surgery
Open Versus Robot-assisted Kidney Transplantation in Adults with End-stage Kidney Disease (ORAKTx): A Randomised Open-label Trial.

The ORAKTx trial, conducted at Copenhagen University Hospital – Rigshospitalet in Denmark, is the first randomized controlled study to directly compare robot-assisted kidney transplantation against the traditional open surgical approach in adults living with end-stage kidney disease. Between May 2023 and September 2025, researchers enrolled 107 participants who were randomly allocated in roughly equal numbers to either the robotic or open arm, with 106 ultimately undergoing transplantation from either living or deceased donors. The investigation centered on two co-primary endpoints measured 30 days after surgery: the frequency of major surgical complications (classified as Clavien-Dindo grade 3a or higher) and the occurrence of graft-related vascular problems such as bleeding, hematomas, thrombosis, or arterial narrowing. Findings revealed that patients in the robotic group experienced fewer major complications (13% versus 25%) and fewer vascular events (9.4% versus 19%) than those treated with open surgery, though neither difference reached statistical significance given the modest sample size and the trial's power calculation aimed at detecting larger effects. Secondary measures including hospital length of stay, graft function, kidney function recovery, and urological complications were comparable between the two arms, although the robotic group required notably higher postoperative opioid doses, possibly linked to the transperitoneal technique and graft cooling causing bowel irritation. The authors highlight that the trial's pragmatic design, which uniquely incorporated emergency deceased-donor transplants rather than limiting enrollment to elective living-donor cases as in previous research, strengthens the external relevance of the results. Acknowledged weaknesses include the single-institution setting, absence of blinding, potential residual learning-curve effects (especially for deceased-donor robotic procedures), and longer operative times in the robotic arm. Although the predefined superiority threshold was not achieved, the roughly 10% absolute reduction in clinically significant complications is considered potentially meaningful and provides a foundation for designing larger multicentre confirmatory studies with the authors estimating that approximately 450 patients would be needed to statistically verify a benefit of this magnitude.

🔗Source: Ortved M, Dagnæs-Hansen J, Stroomberg HV, et al. Open Versus Robot-assisted Kidney Transplantation in Adults with End-stage Kidney Disease (ORAKTx): A Randomised Open-label Trial. European Urology. 2026. https://doi.org/10.1016/j.eururo.2026.04.022

Andrology
Diagnosis and Management of Adult-Acquired Buried Penis (AABP)

Adult-acquired buried penis (AABP) is a condition in which the phallus becomes concealed within the surrounding peripubic tissues due to fat deposition, genitourinary lymphedema, or scarring from prior trauma or surgery, triggering a self-perpetuating cycle of urinary entrapment, recurrent skin infections, and chronic inflammation that carries significant physical and psychosocial consequences. Because awareness of the condition is limited among both patients and clinicians, many individuals endure symptoms for years before receiving proper care, and screening for associated pathology is essential up to 30% of patients develop lichen sclerosus, around 5% of surgical referrals are found to have penile cancer (roughly 600 times the general population rate), and up to 30% have concurrent urethral stricture or meatal stenosis. Evaluation should include a thorough genital examination, referral to an experienced urologist when burying or skin changes are evident, avoidance of circumcision (which can worsen scarring), and biopsy of suspicious lesions; examination under anesthesia may be required in severe cases, while classification tools such as the Wisconsin and Penis-Abdomen-Scrotum (PAS) systems help guide surgical planning. Management should be tailored to the patient's findings and goals: conservative measures such as topical steroids, weight loss, and lymphedema care may suffice for milder disease, whereas upfront surgery is warranted when the penis cannot be fully exposed, symptoms are severe, dense scarring is unresponsive to topical therapy, or malignancy is suspected. Preoperative optimization of glycemic control, cardiovascular status, and pulmonary function is important given the high rate of comorbidities, and durable surgical repair generally requires excision of diseased skin, debulking of fatty or lymphedematous tissue, and reconstruction using local flaps or grafts, sometimes combined with adjunct procedures like urethroplasty or panniculectomy. Although complication rates in complex repairs may exceed 50%, most are low-grade and manageable on an outpatient basis, and surgical treatment consistently yields substantial improvements in symptoms, psychosocial well-being, and patient satisfaction, underscoring that AABP is best managed by experienced providers using an individualized, multidisciplinary approach.

🔗Source: Klein RD, Laditi F, Rusilko PJ. Diagnosis and Management of Adult-Acquired Buried Penis. ScienceDirect. Available at: https://www.sciencedirect.com/science/article/pii/S2405456926000623?dgcid=rss_sd_all

Pediatric
Preoperative Renal Pelvis Urine Density Predicts Postoperative Infection after Pediatric Retrograde Intrarenal Surgery: A Multicenter Retrospective Cohort Study

This multicenter retrospective study examined whether preoperative renal pelvis urine density (RPUD) measured on non-contrast computed tomography (CT) could predict postoperative infectious complications in children undergoing retrograde intrarenal surgery (RIRS) for kidney stones. A total of 78 pediatric patients between 2 and 17 years of age (median age 10) were reviewed, with demographic data, stone characteristics, and surgical variables collected and analyzed; patients were then divided into two cohorts according to whether they developed postoperative infection, defined using systemic inflammatory response syndrome (SIRS) criteria. Infectious complications occurred in 9 children (11.5%), and although the two groups were comparable in age, sex, and stone laterality, upper calyceal stone location was significantly more common among those who developed infection (p=0.013). Stone volume was also notably larger in the infection group [938.3 mm³ (628.3–2387.6) vs. 571.8 mm³ (377.0–1026.3); p=0.044], while stone density did not differ meaningfully between cohorts; however, RPUD was substantially elevated in patients who developed infection [32 HU (23–32) vs. 11 HU (5–17); p<0.001]. Receiver operating characteristic (ROC) analysis established 20 HU as the optimal threshold, yielding excellent discriminatory performance (AUC=0.994, 95% CI: 0.980–1.000) with 100% sensitivity and 97.1% specificity, and multivariable regression confirmed RPUD as the sole independent predictor of postoperative infection (OR: 2.144, 95% CI: 1.200–3.831, p=0.010). The authors concluded that higher preoperative RPUD values are strongly linked to infectious complications following pediatric RIRS, positioning this simple, noninvasive CT-based measurement as a highly accurate tool for stratifying infection risk before surgery.

🔗Source: Ipek OM, Dincer E, Sevinc AH, Sevinc BH, Sevinc M, Karli G, Horasanli K. Association between Preoperative Renal Pelvis Urine Density and Postoperative Infectious Complications in Pediatric Retrograde Intrarenal Surgery. Journal of Pediatric Urology. Available at: https://www.jpurol.com/article/S1477-5131(26)00273-1/abstract?rss=yes

📬 Until next week,
🩺 PSAWeekly Team

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