Central European Journal of Urology最新文献

Introduction: Collecting duct, or Bellini duct, renal cell carcinoma (CDRCC) is a rare tumour, comprising only 0.4-2% of all renal cell carcinoma. The goal of this study was to evaluate the cases in our institution and look at current available literature.

Material and methods: We searched all data on renal cell tumours in our institution between 2011 and 2021 and identified four cases with confirmed CDRCC pathology. Important features were listed and analysed. We also reviewed current available literature and compared it to our case series.

Results: All cases were men with a median age of 63.5 years. All were symptomatic at presentation. Two patients presented with flank pain and two with gross haematuria. Three patients had stage IV disease at time of presentation and one stage III disease. All cases had clear Bellini duct renal cell carcinoma appearance on microscopy with infiltrative tubular architecture and high-grade nuclear features. Immunohistochemic (IHC) staining was performed for diagnostic confirmation. Three patients underwent radical nephrectomy and received adjuvant chemotherapy. One case had kidney biopsy for diagnostic confirmation and received first line chemotherapy. Immunotherapy or tyrosine kinase inhibitor (TKI) were started for second, third or fourth line of treatment. Median overall survival after diagnosis was 11 months.

Conclusions: CDRCC is a rare subtype of renal cell carcinoma with poor prognosis, typically presenting in a more advanced or metastatic stage. Diagnosis can be challenging. Multimodality treatment should be considered using radical surgery and systemic treatment.

Introduction: Open radical nephroureterectomy (ONU) is the standard of care for treatment of upper tract urothelial carcinoma (UTUC), but laparoscopic radical nephroureterectomy (LNU) is increasingly being used due to better perioperative outcomes. However, its oncological safety remains controversial, in particular for advanced disease.We aimed to compare perioperative and oncological outcomes between surgical approaches in locally advanced UTUC (≥pT3 and/or pN+).

Material and methods: This study was a retrospective analysis of all 48 patients submitted to radical nephroureterectomy for advanced UTUC between 2006 and 2020 in our center.Perioperative data were compared between groups. Bladder tumor-free survival (BTFS), metastasis-free survival (MFS) and cancer-specific survival (CSS) were estimated using Kaplan-Meier curves and compared with log-rank p test. Multivariable Cox regression model was used to evaluate their association with surgical approach.

Results: Clinical and pathological characteristics were similar between groups. LNU had lower blood loss (p = 0.031), need for transfusion (p = 0.013) and length of hospital stay (p <0.001), with similar operative time (p = 0.860).LNU was associated with better MFS (hazard ratio [HR]: 0.43, 95% confidence interval [CI] 0.20-0.93, p = 0.033) and CSS (HR: 0.42, 95%CI 0.19-0.94, p = 0.036). Median time to cancer death was 41 months for LNU and 12 months for ONU (log-rank p = 0.029). BTFS was similar between groups (HR: 0.60, 95%CI 0.17-2.11, p = 0.427). On multivariable Cox regression model, surgical approach wasn't significantly associated with MFS (p = 0.202), CSS (p = 0.149) or BTFS (p = 0.586).

Conclusions: In our cohort of advanced UTUC, LNU did not result in inferior oncological control compared to ONU. The minimally invasive approach conferred an advantage in perioperative outcomes.

Introduction: The Italian Radical Cystectomy Registry (Registro Italiano Cistectomie - RIC) aimed to analyse outcomes of a multicenter series of patients treated with radical cystectomy (RC) for bladder cancer.

Material and methods: An observational, prospective, multicenter, cohort study was performed to collect data from RC and urinary diversion via open (ORC), laparoscopic (LRC), or robotic-assisted (RARC) techniques performed in 28 Italian Urological Departments. The enrolment was planned from January 2017 to June 2020 (goal: 1000 patients), with a total of 1425 patients included. Chi-square and t-tests were used for categorical and continuous variables. All tests were 2-sided, with a significance level set at p <0.05.

Results: Overall median operative-time was longer in RARCs (390 minutes, IQR 335-465) than ORCs (250, 217-309) and LRCs (292, 228-350) (p <0.001). Lymph node dissection (LND) was performed more frequently in RARCs (97.1%) and LRCs (93.5%) than ORCs (85.6%) (p <0.001), with extended-LND performed 2-fold more frequently in RARCs (61.6%) (p <0.001). The neobladder rate was significantly higher (more than one-half) in RARCs. The median estimated blood loss (EBL) rate was lower in RARCs (250 ml, 165-400) than LRCs (330, 200-600) and ORCs (400, 250-600) (p <0.001), with intraoperative blood transfusion rates of 11.4%, 21.7% and 35.6%, respectively (p <0.001). The conversion to open rate was slightly higher in RARCs (6.8%) than LRCs (4.3%). Intraoperative complications occurred in 1.3% of cases without statistically significant differences among the approaches.

Conclusions: Data from the RIC confirmed the need to collect as much data as possible in a multicenter manner. RARCs proves to be feasible with perioperative complication rates that do not differ from the other approaches.

Introduction: Non-urothelial variant histology (VH), non-muscle invasive bladder cancer (NMIBC) has received little attention in contemporary urologic literature. Specifically, the effect of female sex on stage at presentation, as well as on cancer-specific mortality (CSM) have not been previously examined in VH NMIBC. Our aim was to test the effect of female sex on stage at presentation and CSM in VH NMIBC.

Material and methods: Within the Surveillance, Epidemiology, and End Results (SEER) database (2004-2016), we identified patients aged ≥18 years, with histologically confirmed VH NMIBC. Logistic regression models addressed T1 stage at diagnosis after multivariable adjustments for tumor grade, age and race/ethnicity. Before Kaplan-Meier plots and Cox regression analyses, propensity score matched adjusting for histological variants, T-stage, tumor grade, age and race/ethnicity was performed.

Results: Overall, 2,205 VH NMIBC patients were identified. Of those, 28% (n = 607) were female. Females were older (77 vs 74 years, p <0.001) and more frequently harbored T1 stage (55 vs 45%, p <0.001). Female sex independently predicted T1 stage (odds ratio [OR] = 1.66, 95% Confidence Interval [CI] = 1.35-2.03, p <0.001). Female sex also exhibited higher CSM, after matching for all assessable variables, including stage (hazard ratio [HR] = 1.91, 95% CI = 1.45-2.54, p <0.001).

Conclusions: In VH NMIBC, female sex is an indicator of higher rate of T1 stage and, fully independently of stage, female sex also results in higher CSM.

Introduction: The aim of this article was to evaluate the oncological results and safety of cryotherapy for the treatment of renal tumors.

Material and methods: This study was a prospective review and follow-up of patients who underwent cryotherapy from January 2008 to May 2021. Cryotherapy was offered to patients with bilateral tumors, tumors in solitary kidneys, or comorbid patients. Follow-up consisted of a computed tomography (CT) scan and contrast-enhanced ultrasound (CEUS), with analysis of concordance (kappa index). Overall survival and kidney survival were analyzed (Kaplan-Meier).

Results: Cryotherapy was performed 71 times in 67 patients. A total of 74.6% of patients were men. The mean age of patients was 69.7 years (standard deviation (SD) 11.3]. Mean follow-up was 52.7 months (SD 36.2). Mean tumor size was 26.2 mm (SD 7.6). 90% were cT1a, 10% cT1b stage. Type of access was open in 1 patient, laparoscopic in 8, percutaneous US-guided in 8 and percutaneous CT-guided in 54 patients. Biopsy was taken in 60 patients (84.5%) and consisted of renal cell carcinoma (22), oncocytoma (9), papillary carcinoma (4), angiomyolipoma (1), sarcoma (1), and non-conclusive (23).There were 22 complications such as pain in 2 patients, hematoma in 8 and 2 cases of bleeding, all resolved conservatively except for one case of bleeding which required embolization.Recurrences occurred in 16 cases (22.5%). Management was cryotherapy in 25%, radical nephrectomy in 31.3% and surveillance in 43.8%. Concordance between contrast-enhanced ultrasound and CT was 0.8 (excellent).Mean glomerular filtration did not change. One patient developed metastasis.No cancer-specific mortality was found. Overall survival at 12, 24 and 48 months was 98.5%, 96.8% and 76.9% respectively. Kidney survival at 12, 24 and 48 months was 97%, 93.5% and 93.5% respectively.

Conclusions: Cryotherapy for renal tumors is a safe treatment for comorbid or solitary kidney patients, with rare major complications and good oncological outcome.

Introduction: The aim of this article was to evaluate the current perception of urologists as to what size is considered as a clinically insignificant residual fragment (CIRF).

Material and methods: A survey was globally distributed to the members of the Endourological Society via SurveyMonkey.

Results: A total of 385 participants responded to the survey on CIRF. Most participants considered 2 mm (29%) as CIRF threshold, followed by 3 mm (24%), 4 mm (22%), 0 mm (14%), 5 mm (8%) and 1 mm (3%). North American urologists considered CIRF to be smaller than urologists from Asia, Eurasia and South America, (p-values ≤0.001, 0.037 and 0.015 respectively). European urologists identified smaller CIRF in comparison to Asian urologists (p-value = 0.001). Urologists mainly using a pneumatic lithotripter accepted larger fragments as CIRF, compared to urologists mainly using ultrasonic devices or a combination of ultrasonic and pneumatic devices (p-value = 0.026 and 0.005 respectively). Similarly, urologists mainly performing X-Ray and ultrasound as post-operative imaging accepted larger fragments as CIRF in comparison to urologists mainly performing non-contrast computed tomography (p-value = 0.001).

Conclusions: What is considered as CIRF varies between urologist from different continents and seems to be associated with the lithotripter used and the post-operative imaging modality of preference to assess treatment success.

Introduction: The demographics of men undergoing vasectomy in Poland has not been thoroughly evaluated. The objective of the study is to characterise patients who underwent vasectomy in 2019-2020 in terms of their motivation, the level of acceptance of the method, their social and health status and the way religion influenced their choice.

Material and methods: This is a prospective observational study based on a survey taken before vasectomy. The surveys attached were collected in 2019-2020. A total number of 253 surveys were collected.

Results: A total of 43 men aged between 31 and 40 constituted 56.52% of all patients. Of the patients surveyed, 123 (48.62%) were in their first stable relationship. In total, 230 participants (90.91%) declared no intention of having children. A total of 128 patients surveyed (50.59%) showed no interest in the possibility of adoption, whereas 109 (43.08%) did consider adoption. Most of the patients - 150 (59.29%), had been considering vasectomy for 1-3 years. The most popular contraceptive methods were oral contraception - 68 surveyed (26.88%) and condoms - 66 (26.09%). Vasectomy did not collide with religion in 241 cases (95.26%). Seven patients (2.77%) chose vasectomy due to a genetic defect. A total of 46 out of 243 men (18.18%) chose this contraceptive method due to their partners' health.

Conclusions: Vasectomy in Poland has been performed for over 18 years, however, accessibility has been limited. Recently, the procedure has been gaining in popularity. Now the age structure and partnership status correspond with the data from other centres in the world. Our study showed positive trends of co-responsibility of both partners for procreation and family planning.

Introduction: Recent publications of interstitial cystitis (IC)/bladder pain syndrome cure by a gynecological prolapse protocol, run counter to traditional treatments such as bladder installations which do not offer such cure. The prolapse protocol, uterosacral ligament (USL) repair, is based on the 'Posterior Fornix Syndrome' (PFS). PFS was described in the 1993 iteration of the Integral Theory. PFS comprises predictably co-occurring symptoms of frequency, urgency, nocturia, chronic pelvic pain, abnormal emptying and post-void residual urine, caused by USL laxity and cured or improved by repair thereof.

Material and methods: analysis and interpretation of published data showing cure of IC by USL repair.

Results: In many women, USL pathogenesis of IC can be explained by the effect of weak or loose USLs weakening two pelvic muscles which contract against them, levator plate (LP) and conjoint longitudinal muscle of the anus (LMA). The now weakened pelvic muscles cannot stretch the vagina sufficiently to prevent afferent impulses from urothelial stretch receptors 'N' reaching the micturition centre where they are interpreted as urge. The same unsupported USLs cannot support the visceral sympathetic/parasympathetic visceral autonomic nerve plexuses (VP). The pathway of multiple referred pelvic pains is explained as follows: groups of afferent VP axons stimulated by gravity or muscle movements fire off 'rogue' impulses, which are interpreted by the cortex as end-organ chronic pelvic pain (CPP) from several end organs; this explains how CPP is invariably perceived in several sites. Reports of cure of non-Hunner's and Hunner's IC are analysed with diagrams which explain co-occurrence of IC with urge and phenotypes of chronic pelvic pain from several different sites.

Conclusions: A gynecological schema cannot explain all IC phenotypes, especially male IC. However, for those women who obtain relief from the predictive speculum test, there is a significant possibility of cure of both the pain and the urge by uterosacral ligament repair. In this context, it may well be in such female patients' interests, at least in the exploratory diagnostic phase, for ICS/BPS to be subsumed into the PFS disease category. It would give such women a significant chance of cure, something denied to them for now.

Introduction: Retrograde ureteroscopy with holmium laser lithotripsy (HLL) is a standard treatment for urolithiasis. Moses technology has been shown to improve fragmentation efficiency in vitro; however, it is still unclear how it performs clinically compared to standard HLL. We performed a systematic review and meta-analysis evaluating the differences in efficiency and outcomes between Moses mode and standard HLL.

Material and methods: We searched the MEDLINE, EMBASE, and CENTRAL databases for randomized clinical trials and cohort studies comparing Moses mode and standard HLL in adults with urolithiasis. Outcomes of interest included operative (operation, fragmentation, and lasing times; total energy used; and ablation speed) and perioperative parameters (stone-free rate and overall complication rate).

Results: The search identified six studies eligible for analysis. Compared to standard HLL, Moses was associated with significantly shorter average lasing time (mean difference [MD] -0.95, 95% confidence interval [CI] -1.22 to -0.69 minutes), faster stone ablation speed (MD 30.45, 95% CI 11.56-49.33 mm³/min), and higher energy used (MD 1.04, 95% CI 0.33-1.76 kJ). Moses and standard HLL were not significantly different in terms of operation (MD -9.89, 95% CI -25.14 to 5.37 minutes) and fragmentation times (MD -1.71, 95% CI -11.81 to 8.38 minutes), as well as stone-free (odds ratio [OR] 1.04, 95% CI 0.73-1.49) and overall complication rates (OR 0.68, 95% CI 0.39-1.17).

Conclusions: While perioperative outcomes were equivalent between Moses and standard HLL, Moses was associated with faster lasing time and stone ablation speeds at the expense of higher energy usage.

Introduction: The aim of this article was to enumerate the differences in immediate and postoperative outcomes for holmium laser enucleation of the prostate (HoLEP) performed with low-power (LP) or high-power (HP) laser settings through a systematic review of comparative studies.

Material and methods: We performed a systematic literature review using MEDLINE, EMBASE, and Cochrane Central Controlled Register of Trials. Potential clinical differences among LP and HP HoLEP were determined using the PICOS (Patient Intervention Comparison Outcome Study type) model, where outcomes were surgical time, operative efficiency, postoperative catheterization time, length of hospital stay, blood transfusion, incontinence rate, maximum urinary flow rate (QMax) and International Prostatic Symptom score (IPSS). Retrospective, prospective nonrandomized, randomized studies, and meeting abstracts were considered.

Results: A total of five studies were included for meta-analysis. No significant differences between LP and HP HoLEP were evidenced in terms of intraoperative variables (surgical time, surgical efficiency); postoperative outcomes (length of stay, length of catheterization); postoperative complications; functional results (IPSS; Qmax). Urinary incontinence rate did not differ between the two groups (OR 0.95, 95% CI 0.362.47, p = 0.91).

Conclusions: The study shows equal outcomes in outcomes from HoLEP performed with LP or HP energy settings. Even if further comparative studies are still needed to increase the level of evidence, those results encourage a further clinical adoption of LP HoLEP.