Comparison of endoscopic versus CT assessment of stone-free status after percutaneous nephrolithotomy (PCNL).

This study is aimed to determine whether postoperative low dose computed tomography (LDCT) imaging is necessary after percutaneous nephrolithotomy (PCNL), or the surgeon's intraoperative assessment of residual fragments (RF) is sufficient and avoidance of postoperative imaging with reduction of radiation exposure can be achieved. Data of all 610 patients who underwent PCNL in prone position in our institution from February 2009 to September 2020 was collected. Parameters such as age, gender, BMI, ASA-Classification, stone related parameters and the surgeon's assessment of stone-free status were analyzed. The LDCT performed postoperatively was compared to the intraoperative assessment of the surgeon regarding RF. The mean age of patients was 52.82 years; the mean BMI was 28.18 kg/m2. In 418 cases, the surgeon made a clear statement about the presence of RF and postoperative LDCT was carried out. The discrepancy between the two methods (surgeon´s assessment vs. LDCT) was significant at p < 0.0001. The sensitivity, specificity, positive and negative predictive value of the surgeon when assessing RF were 24.05%, 99.45%, 98.28% and 50%. Stone free rate (SFR) after primary PCNL was 45.57%. The overall SFR at discharge was 96.23%. Although the surgeon´s assessment of RF was reliable, postoperative LDCT imaging should still be performed if endoscopic stone clearance is suspected due to the high false negative rate and the low negative predictive value. The optimal timing of postoperative imaging following PCNL remains unclear.

Evaluation of sexual function and vaginal prolapse after radical cystectomy in women: a study to explore an under-evaluated problem.

INTRODUCTION AND HYPOTHESIS: The objective was to evaluate sexual function, vaginal prolapse, and quality of life (QoL) in women after radical cystectomy (RC) using validated questionnaires and pelvic organ prolapse quantification (POP-Q) measurement. METHODS: Female bladder cancer patients who underwent RC at our tertiary care center were included (January 2008 to March 2022). Patients received three validated questionnaires (International Consultation on Incontinence Questionnaire Vaginal Symptoms [ICIQ-VS] Part A, Pelvic Organ Prolapse/Urinary Incontinence Sexual Questionnaire IUGA revised [PISQ], European Organization for Research and Treatment of Cancer Quality of Life Questionnaire [EORTC] C30/BLM30). Patients who consented were examined with vaginal POP-Q measurement. RESULTS: Out of 322 patients, 193 were still alive, 54 patients were lost to follow-up, and 43 were excluded, resulting in 96 patients who received the questionnaire. Finally, 35 patients were included, of whom 17 patients consented to vaginal examination. Complaints due to vaginal symptoms were low (ICIQ-VS 6.17 + 5.37). Sexual activity was reported by 12 patients (34.3%); 23 patients (65.71%) were not sexually active. No apical prolapse was found in POP-Q measurement; 6 patients (35.3%) had anterior, and 14 patients (82.4%) posterior prolapse; the highest prolapse stage was 2. No significant differences were found regarding POP stages, sexual function, and QoL (all p > 0.05) when comparing continent and incontinent urinary diversions. Comparing the vaginal approach (no sparing vs sparing), significant differences were found in only two PISQ subscales (significantly higher scores after vagina sparing, p = 0.01 and p = 0.02). CONCLUSIONS: The type of urinary diversion, POP-Q stages, and tumor stages did not show significant differences regarding sexual function, QoL, and prolapse complaints in women after RC, whereas a vagina- sparing approach showed significant differences only in two subscales without clinical relevance.

[Analysis of the impact of increasing feminization in the healthcare system on urology]. / Analyse des Einflusses der zunehmenden Feminisierung im Gesundheitswesen auf die Urologie.

BACKGROUND AND OBJECTIVE: The aim of this study was to evaluate gender aspects and trends in urological clinics, research and private practice. The focus was on the objectification of gender-specific changes in the field of urology at the current time and in the future. MATERIAL AND METHODS: A digital survey among urological physicians in Germany was conducted with the SurveyMonkey© portal, which was sent to all registered members via the email distribution lists of the German Society of Urology (DGU) and the Professional Association of German Urologists (BvDU). Baseline data were collected in the outpatient and inpatient sectors, as were gender-specific data related to job distribution, goals, satisfaction, and reasons for career decisions. RESULTS: The analysis of 398 responses revealed that urological colleagues in private practice were less likely to be female (23.6%) and significantly older (mean age 53 years) than in the inpatient sector (female proportion 47.2%, mean age 43 years). More men (49.4%) than women (29.9%) were in private practice and this was indicated as a career aspiration by more men than women (28.1% vs. 22.8%). The reasons for setting up a practice were more often family-related for women than for men (main reasons good opportunity or career aspiration). Women were more likely to work part-time (27.0% vs. 11.5%) and more likely to aspire to a career as a senior physician (29.1% of women, 9.4% of men). Correspondingly, the desire for a postdoctoral position or professorship was more common among women than among men (20.5% vs. 15%). Significantly more female urologists perceived inequality in career advancement opportunities (59.7% vs. 17.5%, p < 0.001) and 73.3% (vs. 18.5% of men, p < 0.001) perceived their gender as a cause of disadvantage. This resulted in significantly lower satisfaction of women with their professional status (p = 0.008) as well as a lower feeling of being valued (p < 0.001). CONCLUSION: In order to prepare our specialty field for the future, it is essential to give even greater consideration to gender aspects. The path taken to offer the next generation of urologists a modern specialty in which all physicians, regardless of their gender, enjoy working, are valued and where equal opportunities prevail, should definitely be pursued and intensified in order to position urology well for the future.

[Certified continuing education curriculum of the German Society for Urology (WECU)]. / Zertifiziertes Weiterbildungscurriculum der Deutschen Gesellschaft für Urologie (WECU).

The education curriculum in urology is aimed at better integration of inpatient and outpatient medicine and high-quality specialist training in order to recruit well-trained young people for urology in the future. For this purpose, in a modular system, rotations of 6-12 months in outpatient offices as well as optionally in other disciplines or in other clinics with different priorities are planned. The training period includes 5 modular seminars and a webinar series including examinations, in which the entire learning content required in the specialty training regulations is presented in interactive lectures. Clinics and outpatient offices certified to participate in the curriculum undergo regular evaluation, which leads to continuous improvement of training centers.

Impact of perioperative blood transfusions on oncologic outcomes after radical cystectomy: A systematic review and meta-analysis of comparative studies.

This study aimed at systematically analyzing and evaluating the impact of perioperative blood transfusions (PBT) on oncologic outcomes of patients undergoing radical cystectomy for bladder cancer. This systematic review follows the recommendations of the Cochrane Handbook for Systematic Reviews and Interventions and was conducted in line with the PRISMA statement and the AMSTAR II criteria. A comprehensive database search was performed based on the PICO criteria. Two independent reviewers performed all screening steps and quality assessment. Risk of bias and certainty in evidence were assessed with the Newcastle Ottawa Scale for non-randomized trials and the GRADE approach. Of 1123 identified studies 20 were eligible for qualitative analysis and 15 for quantitative analysis reporting on 21,915 patients. Receiving a PBT was associated with an increased risk of all-cause mortality (hazard ratio (HR) [95% confidence interval (CI)]: 1.29 [1.18, 1.40]; p < 0.001), cancer-specific mortality (HR [CI]: 1.27 [1.15; 1.41]; p < 0.001) and disease recurrence (HR [CI]: 1.22 [1.12; 1.34]; p < 0.001). Subgroup analysis of transfusion timing revealed a significantly increased risk of mortality with intraoperative or combined intra- and postoperative transfusions compared to postoperative transfusion only for all three outcomes (p < 0.001). Leukocyte-depletion was associated with increased all-cause mortality, but not cancer-specific mortality. The administration of PBT negatively impacts oncological outcomes after radical cystectomy. Therefore, careful treatment indication and strict adherence to transfusion guidelines is encouraged in order to avoid adverse effects during the perioperative course.

[Intelligent early prostate cancer detection in 2021: more benefit than harm]. / Intelligente Prostatakarzinomfrüherkennung 2021 ­ mehr Nutzen als Schaden.

Prostate-specific antigen (PSA) is used for early detection of prostate cancer which represents the most frequent cancer diagnosed in men in Germany and Europe. Results of the largest screening trials revealed that PSA testing reduces the incidence of locally advanced and metastatic prostate cancer and shows an effect on cancer-specific mortality. However, since early diagnosis also results in overdiagnosis and overtreatment of insignificant cancers with associated morbidities, there is a need for a more individualized and risk-tailored modern strategy. The PSA at baseline is an important part of this strategy although the German Federal Joint Committee declined its financial coverage by health insurances. Available validated instruments should accompany the baseline PSA to optimize detection of clinically significant prostate cancer.

Peritoneal flap for lymphocele prophylaxis following robotic-assisted laparoscopic radical prostatectomy with pelvic lymph node dissection: study protocol and trial update for the randomized controlled PELYCAN study.

BACKGROUND: Data from interventional studies suggest that a peritoneal flap after pelvic lymph node dissection (LND) during laparoscopic, robotic-assisted radical prostatectomy (RARP) may reduce the rate of symptomatic lymphoceles in transperitoneal approach. However, most of these studies are not conducted in a randomized controlled fashion, thus limiting their scientific value. A recent prospective, randomized, controlled trial (RCT) did not show superiority of a peritoneal flap while further trials are lacking. Therefore, the aim of the presented RCT will be to show that creating a peritoneal flap decreases the rate of symptomatic lymphoceles compared to the current standard procedure without creation of a flap. METHODS/DESIGN: PELYCAN is a parallel-group, patient- and assessor-blinded, phase III, adaptive randomized controlled superiority trial. Men with histologically confirmed prostate cancer who undergo transperitoneal RARP with pelvic LND will be randomly assigned in a 1:1 ratio to two groups-either with creating a peritoneal flap (PELYCAN) or without creating a peritoneal flap (control). Sample size calculation yielded a sample size of 300 with a planned interim analysis after 120 patients, which will be performed by an independent statistician. This provides a possibility for early stopping or sample size recalculation. Patients will be stratified for contributing factors for the development of postoperative lymphoceles. The primary outcome measure will be the rate of symptomatic lymphoceles in both groups within 6 months postoperatively. Patients and assessors will be blinded for the intervention until the end of the follow-up period of 6 months. The surgeon will be informed about the randomization result after performance of vesicourethral anastomosis. Secondary outcome measures include asymptomatic lymphoceles at the time of discharge and within 6 months of follow-up, postoperative complications, mortality, re-admission rate, and quality of life assessed by the EORTC QLQ-C30 questionnaire. DISCUSSION: The PELYCAN study is designed to assess whether the application of a peritoneal flap during RARP reduces the rate of symptomatic lymphoceles, as compared with the standard operation technique. In case of superiority of the intervention, this peritoneal flap may be suggested as a new standard of care. TRIAL REGISTRATION: German Clinical Trials Register DRKS00016794 . Registered on 14 May 2019.

[Urological care in practices and clinics during the corona virus pandemic in Germany]. / Versorgungssituation urologischer Patienten in Praxen und Kliniken während der Coronaviruspandemie in Deutschland.

The coronavirus pandemic has had an immediate and far-reaching effect on the care of urological patients. The pandemic monitor of the German Society for Urology was able to record the restrictions on patient care in urological practices and clinics by means of regular surveys of the members. A total of 689 responses at four survey time points were included. In April there was a reduction in urological inpatients to 44% and the number of patients in practices dropped to 50%. Available operating theater capacities for urological patients were 45% in April, normalized to 90% in June and fell again to 50% in December. Elective operations could not be performed at all or only to a very limited extent in most hospitals in April and December. While urgent operations could be treated to 100% in more than 75% of the clinics in April, in December more than half of the clinics stated that they could not treat all patients with urgent indications. To some extent (8-19%) practices and clinics had to resort to a pandemic-related supraregional referral of patients. The reduction of outpatients in urological practices in April normalized to 95% in June and remained stable during the second wave of the pandemic. The increase in urological emergencies in practices observed at the beginning of the pandemic did not show up in November and December. The coronavirus pandemic has led to a significant reduction in the care of urological patients, which in particular in the second wave also affects urgent operations.

[Empowerment for our patients : Innovation in everyday urology]. / Empowerment für unsere Patienten : Gelebte Innovation im urologischen Alltag.

Patient empowerment includes measures that promote their autonomy and self-determination in the physician-patient relationship. In addition to successful medical treatment, goals include long-term treatment satisfaction and the best possible quality of life for the patients and their social environment. Various initiatives and projects from German urology are already used to empower our patients. Entscheidungshilfe Prostatakrebs (decision aid for prostate cancer) and the German language decision aid for advanced bladder cancer and for the choice of urinary diversion are implemented under the umbrella of the PatientenAkademie (patient academy) of German Urologists. With more than 12,000 users, Entscheidungshilfe Prostatakrebs is very well established in urological care in Germany. The randomized evaluation study with planned 1200 participants is close to the successful completion of recruitment. Another project from the German urology sector is the project "antiCoagulation Help App for SurgERy" (CHASER). The aim is to develop a smartphone-based decision aid for the perioperative management of patients undergoing antithrombotic therapy. Online support groups can also contribute to empowerment and have been analyzed systematically for prostate cancer patients. A large randomized study on this topic is currently in preparation. Continuing advances in digitalization can thus provide us with useful support in order to provide individual information to our patients. The German Urological Association and its PatientenAkademie have been committed to this for many years.

The comprehensive complication index (CCI): proposal of a new reporting standard for complications in major urological surgery.

PURPOSE: The comprehensive complication index (CCI) is a new tool for reporting the cumulative burden of postoperative complications on a continuous scale. This study validates the CCI for urological surgery and its benefits over the Clavien-Dindo-Classification (Clavien). MATERIAL AND METHODS: Data from a prospectively maintained data base of all consecutive patients at a university care-center was analyzed. Complications after radical cystectomy (RC), radical prostatectomy (RP), and partial nephrectomy (PN) were classified using the CCI and Clavien system. Differences in complications between the CCI and the Clavien were assessed and correlation analyses performed. Sample size calculations for hypothetical clinical trials were compared between CCI and Clavien to evaluate whether the CCI would reduce the number of required patients in a clinical trial. RESULTS: 682 patients (172 RC, 297 RP, 213 PN) were analyzed. Overall, 9.4-46.6% of patients had > 1 complication cumulatively assessed with the CCI resulting in an upgrading in the Clavien classification for 2.4-32.4% of patients. Therefore, scores between the systems differed for RC: CCI (mean ± standard deviation) 26.3 ± 20.8 vs. Clavien 20.4 ± 16.7, p < 0.001; PN: CCI 8.4 ± 14.7 vs. Clavien 7.0 ± 11.8, p < 0.001 and RP: CCI 5.8 ± 11.7 vs. Clavien 5.3 ± 10.6, p = 0.102. The CCI was more accurate in predicting LOS after RC than Clavien (p < 0.001). Sample size calculations based in the CCI (for future hypothetical trials) resulted in a reduction of required patients for all procedures (- 25% RC, - 74% PN, - 80% RP). CONCLUSION: The CCI is more accurate to assess surgical complications and reduces required sample sizes that will facilitate the conduction of clinical trials.

[Analysis of European concepts for specialization training in urology with special consideration of intersectoral further education]. / Analyse von europäischen Weiterbildungskonzepten zum Facharzt für Urologie unter besonderer Berücksichtigung der intersektoralen Weiterbildung.

BACKGROUND: The aim of the study is to compare the German specialization training in urology with other European concepts, to analyze regional differences and to evaluate the development of the personnel structure in urology in German hospitals and private practices for the last 5 years. In addition, possibilities for financial funding of residents in the outpatient sector will be analyzed. MATERIALS AND METHODS: After analyzing the changes in the new Urology Specialization Training Regulations (Musterweiterbildungsordnung), the current urology training situation in Germany was evaluated in a European comparison. A trend analysis of the personnel structure in urology has been performed for recent years. Additionally, a possible intersectoral rotation concept was developed. Financial funding possibilities for urological residents were evaluated in a standardized telephone survey. RESULTS: Compared to other European countries, the exceptional position of German urology with its enormous spectrum becomes evident. In some states, there are already possibilities of financial support provided by regional Associations of Statutory Health Insurance Physicians (Krankenversicherung) for the training of urological residents in private practices. CONCLUSIONS: While the organization of specialization training is commonly nation based in other European countries, there is heterogeneity in Germany due to the sovereignty of the states. Due to the shift of many specialization training contents towards the outpatient sector, alliances between clinics and practices in the sense of intersectoral training will become more important in the future. Therefore, the use of already existing funds and-as a long-term objective-a nationwide access to such funding is desirable.

[The "triple F" campaign of the German Society of Urology: what have we reached so far?] / Die "Triple F-Kampagne" der Deutschen Gesellschaft für Urologie: Was haben wir erreicht?

Urology is an important medical discipline for men, women and children due to the variety and frequency of urologic diseases-a fact which is unknown to the majority of the population. In 2016, the "triple F" campaign was initiated in order to inform about both the role of urology and the importance of timely urologic investigations as well as prostate-specific antigen (PSA)-based early examination. With the Roth brothers as the face of the campaign, a homepage was created with information about the main important urologic diseases. Flyers and posters for physicians and their patients were sent to 3500 urologists, a urologist search tool for patients with so far 2200 registered urologists is available on the homepage, etc. Further activities using social media are planned with the objective of increasing participation of German urologists and their patients.

[Navigation systems for the percutaneous access to the kidney]. / Navigierter perkutaner Zugang zur Niere.

BACKGROUND: Percutaneous access to the renal pelvis still remains the most difficult step before nephrolitholapaxy (PCNL). New imaging techniques, such as 3D imaging and various navigation instruments such as electromagnetic, sonographic, CT-controlled and marker-based/iPAD try to simplify this step and reduce complications. OBJECTIVES: In this review, various new techniques for puncturing the renal collecting system are presented and their advantages and disadvantages are evaluated. MATERIALS AND METHODS: A systematic literature search was carried out in MEDLINE, whereby only puncture techniques that have already been evaluated in clinical studies were included. RESULTS: Five different navigation methods for puncturing the renal pelvis before PCNL were found. CONCLUSION: Intraoperative navigation can be useful when puncturing the collecting system. The combination of ultrasound and fluoroscopy currently remains the gold standard. However, there is still a need for further, primarily clinical, prospective studies to determine which new imaging technology and navigation systems will prevail and thus facilitate the access route to the kidney, especially in the case of special anatomical conditions.

[Urological research in Germany : A retrospective, longitudinal observational study]. / Urologische Forschung in Deutschland : Eine retrospektive, longitudinale Beobachtungsstudie.

BACKGROUND AND OBJECTIVES: The congress of the German Society of Urology reflects urologic research in German-speaking countries. The objective was to identify trends by analyzing the congress' abstracts and following full publications longitudinally. MATERIALS AND METHODS: The abstracts of the 2016 congress were systematically analyzed regarding content, study design, cooperation, following full publications and journals which they were published in. Thereafter, the 2016 congress was compared to the 2002 and 2009 congresses. Statistical analysis included χ2-, Mann-Whitney U-, Cochran-Armitage-, and Kruskal-Wallis test. RESULTS: A total of 1073 abstracts were presented at the 2002, 2009, and 2016 congresses. We found an increase in abstracts regarding prostate disease (24.2%, 29.7%, and 34.0%; p = 0.0043), oncological abstracts (50.6%, 57.9%, and 61.7%; p = 0.003), multicenter studies (18.3, 28.6, and 34.3%; p < 0.0001) and cooperation (55.6%, 62.9%, and 70.5%, p < 0.0001). Experimental (29.0%, 33.2%, and 22.8%; p = 0.009) and prospective studies (62.1%, 42.0%, and 36.0%; p < 0.0001) declined. Abstracts including statistical analysis (18.4%, 14.7%, and 41.2%; p < 0.0001) and the impact factor of following full publications (2.08, 3.42, 4.42; p < 0.0001) rose. In 2016, 11.2% of those full publications were published Open Access. The publication rates of the presented abstracts were 49.1%, 56.3%, and 52.3%, respectively (p = 0.15). CONCLUSIONS: National and international networking of the urological research community has increased. Presentation of prospective studies has declined. The rate of peer-reviewed full publications following the DGU abstracts remains at a stable high level over the three congresses. The publication rate in Open Access journals is low.

[Urology in the corona-virus pandemic-a guideline 4/20]. / Urologie in der Corona-Virus-Pandemie ­ Leitfaden 4/20.

The coronavirus pandemic is a major challenge for healthcare systems worldwide. For urology, the expansion of the health-care structures for the treatment of patients suffering from COVID-19 should be supported as best as possible. At the same time, one should aim to ensure adequate care for urological emergencies and urgent urological treatments as far as possible, even during the pandemic. For this, patients must be prioritized individually, alternative therapy concepts must be considered and regional and supraregional cooperation must be used. Outpatient departments are of great importance in the care, examination and coordination of urological emergencies and urgent treatment. Urological clinics must prepare themselves to perform urgent operations and interventions on SARS-CoV­2-positive patients. Here, the creation of a separate, appropriately equipped emergency operating room to perform operations and interventions on SARS-CoV­2 patients should be considered. Furthermore strictly defined hygiene measures to protect employees in various clinical scenarios should be set up.

Early recovery after surgery for radical cystectomy: comprehensive assessment and meta-analysis of existing protocols.

PURPOSE: Different enhanced recovery after surgery (ERAS) protocols (EP) for radical cystectomy (RC) have been published. Protocols highly differ in number of included items and specific measures. MATERIALS AND METHODS: A systematic review and meta-analysis on EPs in RC were performed using the databases MedLine, Cochrane Library, Web of science, and Google Scholar. The specific ERAS measures of the protocols were extracted, analyzed, and compared. Pooling of available outcome data was performed for length of stay, complications, readmission rate, and time to defecation. RESULTS: The search yielded a total of 860 studies of which 25 studies were included in qualitative and 22 in quantitative analysis. Oral bowel preparation (BP) was omitted in 24/25 (96%) EPs, optimized fluid management was administered in 22/25 (88%) EPs and early mobilization (postoperative day 1) in 21/25 (84%). Gum chewing (n = 12, 46%), metoclopramide (n = 11, 44%), and alvimopan (n = 6, 24%) were the most common measures to prevent postoperative ileus. Our meta-analysis revealed a significant benefit in favor of EPs for the outcome parameters length of stay [mean difference (MD) - 3.46 d, 95% confidence interval (CI) - 4.94 to - 1.98, p < 0.01], complications [Odds ratio (OR) = 0.76, 95% CI 0.61-0.94, p = 0.01] and time to defecation (MD - 1.37 d, 95% CI - 2.06 to - 0.69, p < 0.01). Readmission rate did not show a significant difference (OR = 0.73, 95% CI 0.52-1.03, p = 0.07). CONCLUSION: Current EPs focus on omitting oral BP, early mobilization, and optimized fluid management while they differ in methods preventing postoperative ileus. Our meta-analysis revealed a benefit in introducing these protocols into clinical practice.

Clinical relevance of gene expression in localized and metastatic prostate cancer exemplified by FABP5.

PURPOSE: Fatty acid-binding protein 5 (FABP5), a transport protein for lipophilic molecules, has been proposed as protein marker in prostate cancer (PCa). The role of FABP5 gene expression is merely unknown. METHODS: In two cohorts of PCa patients who underwent radical prostatectomy (n = 40 and n = 57) and one cohort of patients treated with palliative transurethral resection of the prostate (pTUR-P; n = 50) FABP5 mRNA expression was analyzed with qRT-PCR. Expression was correlated with clinical parameters. BPH tissue samples served as control. To independently validate findings on FABP5 expression, three microarray and sequencing datasets were reanalyzed (MSKCC 2010 n = 216; TCGA 2015 n = 333; mCRPC, Nature Medicine 2016 n = 114). FABP5 expression was correlated with ERG-fusion status, TCGA subtypes, cancer driver mutations and the expression of druggable downstream pathway components. RESULTS: FABP5 was overexpressed in PCa compared to BPH in the cohorts analyzed by qRT-PCR (radical prostatectomy p = 0.003, p = 0.010; pTUR-P p = 0.002). FABP5 expression was independent of T stage, Gleason Score, nodal status and PSA level. FABP5 overexpression was associated with the absence of TMPRSS2:ERG fusion (p < 0.001 in TCGA and MSKCC). Correlation with TCGA subtypes revealed FABP5 overexpression to be associated with SPOP and FOXA1 mutations. FABP5 was positively correlated with potential drug targets located downstream of FABP5 in the PPAR-signaling pathway. CONCLUSION: FABP5 overexpression is frequent in PCa, but seems to be restricted to TMPRESS2:ERG fusion-negative tumors and is associated with SPOP and FOXA1 mutations. FABP5 overexpression appears to be indicative for increased activity in PPAR signaling, which is potentially druggable.