World Journal of Urology最新文献

Introduction: The rising incidence of renal cell carcinoma (RCC) is a significant concern in cancer research. This study analyses the characteristics of RCC patients based on their socio-professional category and explores the role of chlorinated solvents as a risk factor.

Materials and methods: A multicentre, descriptive epidemiological study was conducted using the UroCCR database. All patients from participating centres who had been diagnosed with RCC between July 2021 and February 2023, as well as those seen for follow-up consultation during this period, were included. Patients were categorised into 5 socio-professional groups based on INSEE's Profession and Social Categories classification. The characteristics and risk factors of RCC for each group were compared. Binary logistic regression was used to study the exposure to chlorinated solvents and risk factors for clear cell RCC (ccRCC).

Results: A total of 1252 patients were included. Males made up 69.6% of the population. The median age was 64 years, and 87% of the patients had at least one RCC risk factor. ccRCC, papillary, and chromophobe types accounted for 78%, 14.9%, and 8.5% of the population, respectively. The median tumor size was 4.5 cm (SD = 3.3). Farmers had a higher prevalence of ccRCC (91.3%; p = 0.05) and larger tumors (median = 6 cm SD = 3.23; p = 0.038) than patients from other populations. Smoking and obesity rates were lower (10.1%; p < 0.001; 15.9%, p = 0.018, respectively), but exposure to chlorinated solvents was higher (50.7%; p < 0.001). Exposure to chlorinated solvents was independently associated with higher TNM stages (p = 0.044, OR = 1.41 CI (1.01; 1.96)). Obesity and exposure to chlorinated solvents were independent risk factors for ccRCC (p = 0.006, OR = 1.6 CI (1.1;2.2) and p = 0.028, OR = 1.6 CI (1.1;2.6), respectively).

Conclusion: This study shows the influence of socio-professional categories on exposure to RCC risk factors and tumor characteristics. In particular, farmers stood out from the rest of the study population. Their significant exposure to chlorinated solvents could be an interesting factor to investigate.

Purpose: The aim of our study was to investigate the impact of the time interval between prostate biopsy and radical prostatectomy (RP) on postoperative urinary continence (UC)/erectile function (EF). From a clinical point of view, an interval of several weeks seems to facilitate surgical preparation.

Materials and methods: We retrospectively analyzed patients who underwent RP for localized prostate cancer (PCa) in a tertiary care center between 2011 and 2020. We evaluated the influence of the following variables on UC and EF 1 year after RP: time from biopsy to RP, age, BMI, pathological T-stage, EF and intraoperative nerve sparing (unilateral vs. bilateral). For this purpose, we performed linear regression analyses as well as manual grouping and cluster analyses to identify possible temporal cutoff ranges. The EPIC-26 and the IIEF questionnaires were used for the assessment of UC and EF.

Results: We identified 6202 consecutive patients who underwent RP. Neither manual grouping nor cluster analyses showed a significant difference in continence or potency after RP. According to linear regression models, only age was an independent predictor of incontinence (95%-CI 0.006-0.01), and EF before RP (95%-CI 0.22-0.26), age (95%-CI - 0.68 to - 0.5), BMI (95%-CI - 0.66 to - 0.29) and bilateral NS (95%-CI 5.5-2.1) had significant impacts on postoperative EF (all p < 0.001).

Conclusion: In the selected patient population, the time interval between prostate biopsy and RP did not seem to have an effect on postoperative functional outcomes (UC and EF).

Purpose: The goal of this systematic review is to assess the temporal changes in outcomes and complications of transurethral resection of the prostate (TURP) from 2000 to 2022.

Methods: We conducted a systematic review and meta-analysis of 103 randomized clinical trials from PubMed on TURP, involving 8521 patients. Studies were grouped by years: 2000-2004, 2005-2009, 2010-2014, and 2015-2022. We assessed International Prostate Symptom Score (IPSS), Peak Flow (Qmax), Post-void residue of urine (PVR), and post-operative complications. Heterogeneity was ranked as low (I² < 25%), moderate (I² = 25-75%), or high (I² > 75%).

Results: TURP significantly improved IPSS, Qmax, and PVR, with the most recent studies showing superior results in IPSS and Qmax after 3 years compared to 2000-2004 studies. Heterogeneity in PVR was high (I² = 100%). No negative impact on erectile function was observed. Complication rates included TURP syndrome (2%), bleeding (8%), and blood transfusion (6%), but elevated heterogeneity with difference between the groups was seen in clot evacuation (I² = 83%) and urinary tract infections (I² = 82%). Other complications were urinary retention (4%), incontinence (8%), urethral stricture (3%), bladder neck stenosis (2%).

Conclusion: In the last 20 years there has not been a clear trend in the results of TURP. The found heterogeneity may indicate a lack of standardization in TURP procedures. However, symptomatic improvement among patients is uniform, which supports this procedure as a historical benchmark surgical treatment for BPH.

Purpose: To assess the time taken by the single use 7.5Fr suction flexible ureteroscope to reduce pressure under 40 mm Hg and to characterize the behavior of stones, fragments and dust during suction activation.

Methods: An in vitro setting was developed for this experiment. A saline-filled globe, with the 7.5Fr single-use suction flexible ureteroscope, PU3033AH (ZhuHai Pusen Medical Technology Co, Ltd, Guangdon, China), an automatic irrigation pump and a pressure monitoring set were used at four modalities; i) continuous suction, no irrigation inflow; ii) continuous suction, irrigation inflow on; iii) one-second rate intermittent suction, irrigation inflow on, and iv) half-second rate intermittent suction, irrigation inflow on. The behavior of calcium oxalate stones from 0.5 to 5 mm when being aspirated via the ureteroscope into a plastic container filled with saline was recorded.

Results: Suction with the PU3033AH worked properly with the inflow irritation on. The fastest strategy to lower the pressure was by continuously pressing the suction button with the irrigation inflow on. Overall, the median time to reach 40 mg was roughly 3.5 s. The PU3033AH could aspirate 0.5 mm stones. The suction mode on a continuous pattern allowed the relocation of stones ranging from 1 to 5 mm on an experimental setup with no obstacles.

Conclusion: The PU3033AH was efficient in lowering pressure in a closed cavity mimicking the renal pelvis. Likewise, stone fragments under one millimeter were aspirated by the device whereas stones from one to five mm could be displaced when activating suction in continuous mode on an experimental setup with no obstacles.

Purpose: We compared surgical complications after laser prostatic photovaporization in anticoagulated versus non-anticoagulated patients.

Methods: A propensity score was calculated and patients were matched, to compare postoperative complications using the Clavien-Dindo classification between the anticoagulated and non-anticoagulated groups. We also identified factors associated with complications, and perform an analysis of secondary endpoint with categories of urological complications.

Results: We included all patients that benefited a photovaporization between 2013 and 2022, either 811 patients, reducing to 245 after propensity score matching for anticoagulation. After propensity score matching, there were no differences in baseline characteristics between groups. Ninety five patients (38%) were receiving anticoagulants; 162 (66%) had an ASA score ≥ 3. Among 86 patients (35%) who experienced complications within 3 months postoperatively, 92% had a Clavien Dindo score ≤ 2. By multivariate analysis, anticoagulation was not statistically significant, the only significant risk factor for complications was ASA score ≥ 3 (Odds ratio (OR) 2.2; 95% confidence interval (CI) [1.2-4.1]). Secondary endpoint analysis for hematuria found ASA score of 3 or higher and anticoagulant treatment statistically significant in univariate and multivariate analysis, with OR of 2.9 (95% CI [1.1-7.4]) and OR of 3.5 (95% CI [1.7-7.5]), respectively.

Conclusion: Green light laser photovaporization of the prostate demonstrates significant safety, even in frail patients on anticoagulant therapy.

Purpose: Advancements in medical treatments and increased access to healthcare have significantly extended the life expectancy of children with neurological disorders. However, this has also led to a higher incidence of secondary health issues, such as nephrolithiasis. This review aims to analyze the risk factors, management, and treatment outcomes for stone disease in children with neurological disorders and focus on specific risk factors such as immobilization, urinary tract infections, and metabolic abnormalities to identify key points in the occurrence of nephrolithiasis.

Methods: A comprehensive literature search was conducted across two primary databases, PubMed and Ovid Medline, to identify studies on urolithiasis in children with neurological disorders. A total of 771 articles were initially identified. After removing four duplicate articles, 729 were excluded following title and abstract screening due to irrelevance. Thirty-eight articles were selected for full-text review, and after further exclusions, 11 articles were included in this review.

Results: The studies mainly consisted of small-scale, single-center investigations. Nephrolithiasis were reported in 5-54% of patients across the studies. The most commonly identified risk factors were immobilization, urinary tract infections (UTIs), and hypercalciuria. Treatment options for urinary stones included medical expulsive therapy (MET), extracorporeal shock wave lithotripsy (ESWL), endoscopic surgery (RIRS), and percutaneous nephrolithotomy (PCNL).

Conclusion: Key steps in managing these patients include monitoring bone mineral density, conducting a 24-h urine analysis to assess metabolic components (despite challenges in obtaining this), and encouraging physical activity as much as the patient's condition permits.

In this Letter, we respond to Wei Qi's Letter to the editor regarding our paper, "Preoperative proteinuria correlates with renal function after partial nephrectomy for renal cell carcinoma" (World Journal of Urology, 2024), addressing the concerns raised with the aim of clarifying the potential benefits of our findings in clinical practice.

Purpose: Bipolar TURP is regarded as the gold standard for treatment of BPH. Historically, when compared to HOLEP, bTURP has been found to have shorter operative times and is considered more efficient. We sought to compare the efficiency, efficacy, and safety of current era HOLEP with MOSES 2.0 technology (MOLEP) and bTURP.

Methods: We performed a retrospective review of patients who underwent bTURP or MOLEP at our institution between 2018 and 2023. Preoperative, intraoperative, and postoperative characteristics were collected for analysis. Analysis was done with SPSS software with significance defined as p < 0.05.

Results: We identified 195 bTURPs and 918 MOLEPs performed at our institution. Men undergoing MOLEP had significantly higher pre-op prostate volume and resected weight (61 ml v 123 ml and 15 g v 70 g, p < 0.001, respectively) when compared to bTURP patients. MOLEP was completed in significantly less OR and procedure time compared to bTURP (66 min vs. 73 min, p < 0.001; 90 min vs. 111 min, p = 0.026, respectively). These results remained significant when controlling for age and prostate volume. At a mean follow up of 3.7 months, HOLEP patients were significantly more likely to be medication (0 vs. 35.84% p < 0.001) and catheter free post-operatively (0.95% vs. 5.68%, p < 0.001) compared to bTURP.

Conclusion: In our contemporary cohort, MOLEP is faster and more efficient than bTURP. These findings remained significant despite being performed on larger prostates and in patients more likely to be anticoagulated. Furthermore, MOLEP patients are more likely to remain catheter and medication free at follow-up when compared to bTURP.