Sphincter preservation techniques during radical prostatectomies: Lessons learned.

Prolonged urinary incontinence represents one of the most severe complications after a radical prostatectomy procedure, significantly affecting patients' quality of life. In an attempt to ameliorate postprostatectomy continence rates, several sphincter preservation techniques have been reported. The purpose of this article is to report several different sphincter preservation techniques and identify the ones which affect postoperative outcomes the most. For our narrative review, PubMed was searched using the keywords "sphincter," "continence," "preservation," "techniques," and "prostatectomy." Other potentially eligible studies were identified using the reference lists of included studies. Sphincter preservation techniques can be summarized into bladder neck preservation, minimizing injury to the external urethral sphincter, and preserving the maximal length of the external sphincter and of the membranous urethra. Three anatomical structures must be recognized and protected in an attempt to maintain the sphincter complex: the bladder neck, the external urethral sphincter and the musculature of the membranous urethra. While there is strong evidence supporting the importance of bladder neck preservation, the role of maximal preservation of the external sphincter and of the intraprostatic part of the membranous urethra in improving continence rates has not yet been reported in a statistically significant manner by high-quality studies.

Summary Paper on the 2023 European Association of Urology Guidelines on the Management of Non-neurogenic Male Lower Urinary Tract Symptoms.

CONTEXT: Lower urinary tract symptoms (LUTS) are common, often bothersome, and have multifactorial aetiology. OBJECTIVE: To present a summary of the 2023 version of the European Association of Urology guidelines on the management of male LUTS. EVIDENCE ACQUISITION: A structured literature search from 1966 to 2021 selected the articles with the highest certainty evidence. The Delphi technique consensus approach was used to develop the recommendations. EVIDENCE SYNTHESIS: The assessment of men with LUTS should be practical. A careful medical history and physical examination are essential. Validated symptom scores, urine test, uroflowmetry, and postvoid urine residual, as well as frequency-volume charts for patients with nocturia or predominately storage symptoms should be used. Prostate-specific antigen should be ordered if a diagnosis of prostate cancer changes the treatment plan. Urodynamics should be performed for selected patients. Men with mild symptoms are candidates for watchful waiting. Behavioural modification should be offered to men with LUTS prior to, or concurrent with, treatment. The choice of medical treatment depends on the assessment findings, predominant type of symptoms, ability of the treatment to change the findings, and the expectations to be met in terms of the speed of onset, efficacy, side effects, and disease progression. Surgery is reserved for men with absolute indications, and for patients who fail or prefer not to receive medical therapy. Surgical management has been divided into five sections: resection, enucleation, vaporisation, and alternative ablative and nonablative techniques. The choice of surgical technique depends on patient's characteristics, expectations, and preferences; surgeon's expertise; and availability of modalities. CONCLUSIONS: The guidelines provide an evidence-based approach for the management of male LUTS. PATIENT SUMMARY: A clinical assessment should identify the cause(s) of symptoms and define the clinical profile and patient's expectations. The treatment should aim to ameliorate symptoms and reduce the risk of complications.

Hands on wet lab and live surgery training in PCNL: Any impact to surgical skills of attending surgeons?

OBJECTIVES: The clinical value and efficiency of hands-on training courses in percutaneous nephrolithotomy (PCNL) remains undocumented. During the last 9 years, a two-day international intensive hands-on training course in fluoroscopic guided prone PCNL is taking place in our department on a monthly basis. Course includes wet lab training in the porcine model and live surgery training. In this work we report the outcomes of a survey send to course participants questioning the impact of the course to their clinical practice. MATERIALS AND METHODS: A survey consisting of 26 questions was distributed online to a total of 91 trainees that had completed the course. Comparison of pre and post course surgical practices was performed using the "N-1" Chi-squared test. RESULTS: A total of 64 trainees responded to our online survey with 55.6% and 41.3% reporting a modest or major impact to their practice accordingly. Notable changes in puncture and dilation technique were evidenced while a uniform reduction in puncture and operative times was documented. 79.4% responded that the course increased the safety of their procedure, 73% that it reduced operating times, 39.7% that increased their stone free rates, 23.8% that reduced their complications and 23.8% that induced to change their instrumentation with respect of that they were using in the past. Subgroup analysis including only well experienced surgeons revealed a similar impact to their practice. CONCLUSIONS: In the proper setting, an intensive hands-on PCNL course can have a significant impact on attending physicians. Participation to such events even for experienced surgeons should be encouraged.

European Association of Urology Guidelines on Male Urinary Incontinence.

CONTEXT: Urinary incontinence (UI) is a common condition in elderly men causing a severe worsening of quality of life, and a significant cost for both patients and health systems. OBJECTIVE: To report a practical, evidence-based, guideline on definitions, pathophysiology, diagnostic workup, and treatment options for men with different forms of UI. EVIDENCE ACQUISITION: A comprehensive literature search, limited to studies representing high levels of evidence and published in the English language, was performed. Databases searched included Medline, EMBASE, and the Cochrane Libraries. A level of evidence and a grade of recommendation were assigned. EVIDENCE SYNTHESIS: UI can be classified into stress urinary incontinence (SUI), urge urinary incontinence (UUI), and mixed urinary incontinence. A detailed description of the pathophysiology and diagnostic workup has been reported. Simple clinical interventions, behavioural and physical modifications, and pharmacological treatments comprise the initial management for all kinds of UI. Surgery for SUI includes bulking agents, male sling, and compression devices. Surgery for UUI includes bladder wall injection of botulinum toxin A, sacral nerve stimulation, and cystoplasty/urinary diversion. CONCLUSIONS: This 2022 European Association of Urology guideline summary provides updated information on definition, pathophysiology, diagnosis, and treatment of male UI. PATIENT SUMMARY: Male urinary incontinence comprises a broad subject area, much of which has been covered for the first time in the literature in a single manuscript. The European Association of Urology Non-neurogenic Male Lower Urinary Tract Symptoms Guideline Panel has released this new guidance, with the aim to provide updated information for urologists to be able to follow diagnostic and therapeutic indications for optimising patient care.

Different Nerve-Sparing Techniques during Radical Prostatectomy and Their Impact on Functional Outcomes.

The purpose of this narrative review is to describe the different nerve-sparing techniques applied during radical prostatectomy and document their functional impact on postoperative outcomes. We performed a PubMed search of the literature using the keywords "nerve-sparing", "techniques", "prostatectomy" and "outcomes". Other potentially eligible studies were retrieved using the reference list of the included studies. Nerve-sparing techniques can be distinguished based on the fascial planes of dissection (intrafascial, interfascial or extrafascial), the direction of dissection (retrograde or antegrade), the timing of the neurovascular bundle dissection off the prostate (early vs. late release), the use of cautery, the application of traction and the number of the neurovascular bundles which are preserved. Despite this rough categorisation, many techniques have been developed which cannot be integrated in one of the categories described above. Moreover, emerging technologies have entered the nerve-sparing field, making its future even more promising. Bilateral nerve-sparing of maximal extent, athermal dissection of the neurovascular bundles with avoidance of traction and utilization of the correct planes remain the basic principles for achieving optimum functional outcomes. Given that potency and continence outcomes after radical prostatectomy are multifactorial endpoints in addition to the difficulty in their postoperative assessment and the well-documented discrepancy existing in their definition, safe conclusions about the superiority of one technique over the other cannot be easily drawn. Further studies, comparing the different nerve-sparing techniques, are necessary.

Market potentials of robotic systems in medical science: analysis of the Avatera robotic system.

PURPOSE: To evaluate the potential opportunities and possible competitiveness of Avatera robotic system (ARS) (Avateramedical, Germany), and perform predictive cost-analysis for its implementation and dissemination. MATERIAL AND METHODS: Our study employed a projective quantitative research design. SWOT (strengths, weaknesses, opportunities, threats) analysis was used to map ARS internal competencies towards external contexts, and potential opportunities and risks in the robotic market. The ARS purchase and procedural costs were evaluated in two different scenarios. RESULTS: In the first scenario, setting the purchase cost of the Avatera at around $1.3-1.5 million, a total $400 procedural cost reduction compared to the RAS performed with the da Vinci Xi can be calculated. In the second scenario, with a purchase cos of the ARS of $700.000-800.000 and considering a 5-year period with an annual ARS volume of 500 procedures, only an additional $300 will be attributed to the robot itself. Our projections revealed that for an effective competition the purchase cost of ARS should range between $700.000 and $800.000 during the initial phase of market entry. The marketing strategy of the ARS should be oriented towards countries without any robotic system in operational use, followed by countries where the competition intensity in the marketplace is low. CONCLUSION: The introduction of new robotic systems will greatly affect and reshape the market of robotic surgery. The ARS has all the technical capacity ensuring the performance of high-quality surgical procedures. A fast spread and implementation of the ARS could be expected should the purchase and maintenance costs be kept low.

SDH-deficient renal cell carcinoma: A case report associated with a novel germline mutation.

The highly syndromic nature of succinate dehydrogenase-deficient RCCs constitutes their active surveillance and molecular profiling the alpha and omega.

Robotic-assisted Versus Laparoscopic Surgery: Outcomes from the First Multicentre, Randomised, Patient-blinded Controlled Trial in Radical Prostatectomy (LAP-01).

BACKGROUND: The LAP-01 trial was designed to address the lack of high-quality literature comparing robotic-assisted (RARP) and laparoscopic (LRP) radical prostatectomy. OBJECTIVE: To compare the functional and oncological outcomes between RARP and LRP at 3 mo of follow-up. DESIGN, SETTING, AND PARTICIPANTS: In this multicentre, randomised, patient-blinded controlled trial, patients referred for radical prostatectomy to four hospitals in Germany were randomly assigned (3:1) to undergo either RARP or LRP. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: The primary outcome was time to continence recovery at 3 mo based on the patient's pad diary. Secondary outcomes included continence and potency as well as quality of life in addition to oncological outcomes for up to 3 yr of follow-up. Time to continence was analysed by log-rank test and depicted by the Kaplan-Meier method. Continuous measurements were analysed by means of linear mixed models. RESULTS AND LIMITATIONS: A total of 782 patients were randomised. The primary endpoint was evaluable in 718 patients (547 RARPs; full analysis set). At 3 mo, the difference in continence rates was 8.7% in favour of RARP (54% vs 46%, p = 0.027). RARP remained superior to LRP even after adjustment for the randomisation stratum nerve sparing and age >65 yr (hazard ratio = 1.40 [1.09-1.81], p = 0.008). A significant benefit in early potency recovery was also identified, while similar oncological and morbidity outcomes were documented. It is a limitation that the influence of different anastomotic techniques was not investigated in this study. CONCLUSIONS: RARP resulted in significantly better continence recovery at 3 mo. PATIENT SUMMARY: In this randomised trial, we looked at the outcomes following radical prostate surgery in a large German population. We conclude that patients undergoing robotic prostatectomy had better continence than those undergoing laparoscopic surgery when assessed at 3 mo following surgery. Age and the nerve-sparing technique further affected continence restoration.

Management of Urinary Retention in Patients with Benign Prostatic Obstruction: A Systematic Review and Meta-analysis.

CONTEXT: Practice patterns for the management of urinary retention (UR) secondary to benign prostatic obstruction (BPO; UR/BPO) vary widely and remain unstandardized. OBJECTIVE: To review the evidence for managing patients with UR/BPO with pharmacological and nonpharmacological treatments included in the European Association of Urology guidelines on non-neurogenic male lower urinary tract symptoms. EVIDENCE ACQUISITION: Search was conducted up to April 22, 2018, using CENTRAL, MEDLINE, Embase, ClinicalTrials.gov, and World Health Organization International Clinical Trials Registry Platform. This systematic review included randomized controlled trials (RCTs) and prospective comparative studies. Methods as detailed in the Cochrane handbook were followed. Certainty of evidence (CoE) was assessed using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach. EVIDENCE SYNTHESIS: Literature search identified 2074 citations. Twenty-one studies were included (qualitative synthesis). The evidence for managing patients with UR/BPO with pharmacological or nonpharmacological treatments is limited. CoE for most outcomes was low/very low. Only α1-blockers (alfuzosin and tamsulosin) have been evaluated in more than one RCT. Pooled results indicated that α1-blockers provided significantly higher rates of successful trial without catheter compared with placebo [alfuzosin: 322/540 (60%) vs 156/400 (39%) (odds ratio {OR} 2.28, 95% confidence interval {CI} 1.55 to 3.36; participants=940; studies=7; I2=41%; low CoE); tamsulosin: 75/158 (47%) vs 40/139 (29%) (OR 2.40, 95% CI 1.29 to 4.45; participants=297; studies=3; I2=30%; low CoE)] with rare adverse events. Similar rates were achieved with tamsulosin or alfuzosin [51/87 (59%) vs 45/84 (54%) (OR 1.28, 95% CI 0.68 to 2.41; participants=171; studies=2; I2=0%; very low CoE)]. Nonpharmacological treatments have been evaluated in RCTs/prospective comparative studies only sporadically. CONCLUSIONS: There is some evidence that usage of α1-blockers (alfuzosin and tamsulosin) may improve resolution of UR/BPO. As most nonpharmacological treatments have not been evaluated in patients with UR/BPO, the evidence is inconclusive about their benefits and harms. PATIENT SUMMARY: There is some evidence that alfuzosin and tamsulosin may increase the rates of successful trial without catheter, but little or no evidence on various nonpharmacological treatment options for managing patients with urinary retention secondary to benign prostatic obstruction.

Robot-Assisted Simple Prostatectomy by an Extraperitoneal Approach.

The incidence of symptomatic benign prostate hyperplasia and bladder outlet obstruction has increased during the last two decades. Most of men are treated conservatively. When medical therapy is inadequate to relief symptoms, surgical treatment is necessary. Absolute indications for surgical treatment are gross hematuria, recurrent urinary infections and retentions as well as bladder stones. With advent of minimally invasive surgery, large prostates tend to be treated either endoscopically or laparoscopically (including robotic assistance). Herein, the robotic-assisted simple prostatectomy is described.

Four-point Peritoneal Flap Fixation in Preventing Lymphocele Formation Following Radical Prostatectomy.

BACKGROUND: Symptomatic lymphocele following radical prostatectomy (RP) and concomitant bilateral extended pelvic lymph node dissection (ePLND) has a significant impact on postoperative recovery and may sometimes require surgical intervention. OBJECTIVE: To report on the use of four-point peritoneal flap fixation (4PPFF) during RP to reduce lymphocele occurrence following PLND. DESIGN, SETTING, AND PARTICIPANTS: Between April 2010 and May 2017, 1358 patients underwent RP with concomitant bilateral ePLND. From this cohort, 193 patients who had undergone PNLD with 4PPFF were matched in a 1:1 ratio with respect to age, body mass index, initial PSA, and number of lymph nodes removed to patients who had undergone PLND without 4PPFF. INTERVENTION: 4PPFF was performed by suturing the cut end of the ventral parietal peritoneum at four points (to the anterior and lateral pelvic side wall on both sides) following PLND so that the peritoneal surface was exposed to the iliac vessels and obturator fossa. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: All patients underwent ultrasound on postoperative days 6, 28, and 90 to test for the presence of lymphocele. For univariate analysis, a χ2 test and analysis of variance were applied, as appropriate. Statistical significance was set at p<0.05, and all p values reported were two-sided. RESULTS AND LIMITATIONS: There were no significant differences between the two groups with respect to intraoperative blood loss, positive surgical margin rate, Gleason score, clinical stage, and number of positive cores. Asymptomatic lymphocele was observed in four patients (2.07%) in the 4PPFF group compared to 16 patients (8.3%) without 4PPFF (p=0.0058). Similarly, a significant difference in the incidence of symptomatic lymphocele was observed: two patients (1.03%) in the 4PPFF group versus nine patients (4.6%) without 4PPFF (p=0.0322). There were no differences in other complication rates between the two groups. The limitations of the study are its retrospective and nonrandomised nature, with postoperative follow-up based on ultrasound imaging rather than computed tomography because of ethical considerations, which could have caused observer bias. CONCLUSIONS: 4PPFF is a safe and effective procedure in preventing lymphocele occurrence in patients undergoing RP with PLND. The increase in exposure of the PLND raw area to the peritoneal surface following this procedure may aid in increased absorption of accumulating lymph fluid. Further prospective randomised multicentre studies are warranted to confirm our observations. PATIENT SUMMARY: We report on the use of a surgical technique to decrease the collection of lymphatic fluid in the abdominal cavity following lymph node removal during radical removal of the prostate gland in patients with prostate cancer. Patients undergoing this procedure had significantly better outcomes when compared to patients operated on in the conventional approach.

Histological changes caused by the prolonged placement of ureteral access sheaths: an experimental study in porcine model.

The objective is to evaluate the histological damage to the ureteral wall caused by the prolonged placement of an access sheath in porcine model. Six ureters from three female pigs were randomized into three groups. In each group, an UAS with different indwelling time was inserted. 9.5/11.5 Fr Flexor® ureteral access sheaths were inserted in both ureters with left indwelling for 30 min and right for 60 min. The ureteral access sheath was advanced up to the proximal ureter. No resistance was observed during the insertion. Ureters were harvested in immediately after the sheath placement process in one pig. The ureters of the remaining two pigs were removed at 1 and 2 weeks after the procedure, respectively. Histological examination took place also in these specimens. Ureters with an indwelling time of 30 min: histological examination of the ureter after immediate dissection revealed signs of acute inflammation at the distal ureter. The ureter dissected at 1 week showed minimal focal transmural inflammation along its length with minimal epithelial hyperplasia. The ureter dissected at 2 weeks, no signs of inflammation. Ureters with an indwelling time of 60 min: histological examination of the immediately dissected ureter revealed signs of acute inflammation at the distal ureter. At 1 week, chronic transmural inflammation was predominantly observed in the distal ureter. At 2 weeks, minimal transmural inflammation was observed. The use of UAS did not cause any severe histological damage on porcine ureters. Acute signs of inflammation gradually recovered within 2 weeks.

Laparoscopic sacrocolpopexy using barbed sutures for mesh fixation and peritoneal closure: A safe option to reduce operational times.

INTRODUCTION: Laparoscopic sacrocolpopexy (LSC) has established itself as a safe method for the management of pelvic organ prolapse (POP). Laparoscopic suturing is a time-consuming intraoperative task during LSC. Self-retaining barbed sutures (SBSs) are known to reduce the operative time in laparoscopic cases. The current study aimed to evaluate the efficacy and safety of SBS during the performance of LSC. MATERIALS AND METHODS: Twenty female patients with symptomatic POP were treated with LSC by an expert surgeon. The preoperative evaluation included the International Continence Society POP-quantification (POP-Q) and the prolapse-specific quality-of-life questionnaire Mesh fixation was performed with SBS anteriorly on the anterior vaginal wall and posteriorly on the levator ani muscle. A 5-mm titanium tacking device was used for promontofixation. The peritoneum was also closed with an SBS. RESULTS: Mean patient's age was 63 years (range: 50-79 years). According to POP-Q, system 3 patients (15%) had Stage I, 12 patients (60%) had Stage II, 3 patients (15%) had Stage III, and 2 patients (10%) had Stage IV prolapse. Concomitant hysterectomy was performed in 14 patients, respectively. Mean operative time was 99.75 (range: 65-140) min, mean blood loss was 57.75 (range: 30-120) ml. One patient had a bladder perforation intraoperatively, and three patients developed transient fever postoperatively. One patient had a recurrent cystocele and three patients recurrent rectocele. CONCLUSIONS: The current study renders the use of SBS during LSC to be safe and efficient. Further comparative studies would elucidate the impact of the use of SBS in LSC.

European Section of Urotechnology educational video on fluoroscopic-guided puncture in percutaneous nephrolithotomy: all techniques step by step.

OBJECTIVE: To describe the most common fluoroscopic-guided access techniques during percutaneous nephrolithotomy (PCNL) in a step-by-step manner and to assist in the standardisation of their technique and terminology. METHODS: A high-quality animation video was created for each of the respective fluoroscopic techniques, focusing into the parallel projection of external surgical manoeuvres and their effect in the three-dimensional space of the kidney. RESULTS: Four predominant fluoroscopic-guided percutaneous access techniques are available, each with different advantages and limitations. Monoplanar access is used when a stable single-axis fluoroscopic generator is available and is mostly based on surgeons' experience. Biplanar access uses a second fluoroscopy axis to assess puncture depth. The 'bull's eye' technique follows a coaxial to fluoroscopy puncture path and is associated with a shorter learning curve at the cost of increased hand radiation exposure. Hybrid and conventional triangulate techniques use target projection by two fluoroscopic planes to define the exact localisation of the target in space and access it through a third puncture site. CONCLUSIONS: Fluoroscopic guidance during PCNL puncture is a very efficient method for access establishment. The percutaneous surgeon should be familiar with all available variations of fluoroscopic approach in order to be prepared to adapt puncture technique for any given scenario.

Acute focal bacterial nephritis is associated with invasive diagnostic procedures - a cohort of 138 cases extracted through a systematic review.

BACKGROUND: Acute focal bacterial nephritis (AFBN) is a rare disease currently described only in case reports and small case series. In this study we summarize the clinical features of AFBN as has been documented in the literature and draw recommendations on the proper diagnosis and therapy. METHODS: A systematic literature review was undertaken in PUBMED, Web of Science and The Cochrane Library online databases for relevant literature on AFBN in adults. RESULTS: Literature review revealed a total of 38 articles according to our inclusion criteria, of which we could extract data from 138 cases of AFBN. Fever (98%) and flank pain (80%) were most commonly reported symptoms. E. coli was the most frequent pathogen. Diagnosis was set by CT and/or MRI (52%) with or without sonography or by sonography alone (20%) as well as by sonography combined with IVU. In total, sonography was applied in 83% of cases. All but one patient received antibiotic treatment. Kidney lesions were occasionally mistaken for neoplasms or renal abscesses and as a result, cases were subjected to percutaneous puncture (12.3%), surgical exploration (5.1%) and partial or radical nephrectomy (4.4%). Four cases (2.9%) developed a renal abscess. CONCLUSIONS: The diagnosis of AFBN is set by characteristic clinico-radiological findings. Differential diagnoses of this interstitial bacterial infection include renal abscess and tumor. Correct diagnosis is occasionally impeded by atypical symptoms. Invasive diagnostic and therapeutic procedures should be limited as the majority of cases respond well to conservative treatment.

Acute Focal Bacterial Nephritis Can Lead to Unnecessary Invasive Procedures: A Report of Three Cases.

Acute focal bacterial nephritis (AFBN) is a rarely diagnosed interstitial bacterial infection of the kidney. Due to the non-specific clinical presentation of this entity, correct diagnosis can be challenging. In this work, we present three cases of AFBN aiming to stress the diversity of clinical presentation associated with the disease and the fact that patients with AFBN are at risk of undergoing unnecessary invasive procedures. The employment of invasive diagnostic and therapeutic procedures on the management of AFBN should be limited, as the majority of patients respond well to conservative therapy.

Papillary vs Nonpapillary Puncture in Percutaneous Nephrolithotomy: A Prospective Randomized Trial.

INTRODUCTION: Literature suggests that the percutaneous punctures for percutaneous nephrolithotomy (PCNL) must be performed at the papilla of the renal calix and a puncture at the infundibulum or the direction of the pelvis is not advisable because of increased hemorrhagic risk. A prospective randomized study was conducted to investigate the safety in terms of blood loss of the infundibular approach for PCNL. MATERIALS AND METHODS: Patients with renal stones with an accumulative size of at least 2 cm were randomly assigned to one of two parallel groups to undergo PCNL with either papillary (Group 1) or infundibular (Group 2) renal access. The primary outcome measures were the reduction in hemoglobin on first postoperative day and the need for transfusion during the first postoperative month. Secondary endpoints included the operative and fluoroscopy time, number of accesses performed, overall complication rate, hospitalization time, and complications up to 3 months. RESULTS: In total, 27 and 28 patients were enrolled in Groups 1 and 2, respectively. Patient age, body mass index, and stone size were similar among the groups (p = 0.672, 0.256, and 0.889, respectively). Reduction in hemoglobin and transfusion rate did not differ among Groups 1 and 2 (p = 0.916, p = 1.0, respectively). Operative time was higher in the case of Group 1 (p = 0.027). The overall complications rate was 7.4% for Group 1 and 7.14% for Group 2. Hospitalization time was not significantly different in the study groups (p = 0.724). CONCLUSIONS: The infundibular approach for PCNL to the posterior middle renal calices is not associated with higher blood loss or transfusion rate in comparison with the respective approach to the fornix of the papilla when the currently described technique is performed.