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Background and Objective: The literature on congenital lower urinary tract obstruction (CLUTO) is still limited, resulting in a generally low level of evidence. These guidelines aim to provide a practical approach based on a consensus from the European Association of Urology (EAU)/European Society for Paediatric Urology (ESPU) Paediatric Urology Guidelines Panel. The primary aim of this update was to revise and expand the 2024 EAU/ESPU paediatric urology guidelines, focusing on the comprehensive management of CLUTO., Methods: A structured literature review was performed for all relevant publications published from the last update until March 21, 2023., Key Findings and Limitations: Antenatal management should be considered based on ultrasound findings, foetal urine biochemistry, amniotic fluid levels, and chromosomal status. In newborns with a suspected diagnosis of infravesical obstruction, bladder drainage should be performed and antibiotic prophylaxis initiated. Voiding cystography should be conducted as soon as possible in cases where posterior urethral valves (PUVs) are suspected. A serum creatinine nadir of above 0.85 mg/dl is associated with a poor prognosis. Despite optimal treatment, 20% of patients will progress to end-stage renal disease. Lifelong monitoring and management of both bladder and renal function are essential. Neonatal circumcision, as an adjunct to antibiotic prophylaxis in PUV patients, significantly reduces the risk of febrile urinary tract infections during the first 2 yr of life., Conclusions: This paper is a summary of the updated 2024 EAU/ESPU guidelines, and it provides practical considerations for patients with CLUTO., Patient Summary: In this summary and update of the European Association of Urology/European Society for Paediatric Urology guidelines, we provide practical considerations for the management of children with congenital lower urinary tract obstruction., (Copyright © 2025 European Association of Urology. Published by Elsevier B.V. All rights reserved.)

Introduction Explicit outcomes routinely measured across the life span following hypospadias surgery, defined by a core outcome set (COS), will harmonize and overcome reporting heterogeneity. Methods Age specific outcomes identified in a literature review were presented in a three round Delphi survey. Participants (professionals, parents and patients) were encouraged to suggest outcomes in the first Delphi round. In subsequent rounds participants were asked to choose and rank up to five preferred outcomes for each age. To be deemed core, an outcome needed over 70% of votes in a round. Results Professionals were mainly paediatric urologists (round 1, 2, 3: n=57 (77 %), 39 (78%), 35 (81%)). The response rates from parents/patients (round 1, 2, 3: n= 17, 5, 3) were low. In young boys (<6 years, 6-10 years) four core outcomes were identical (voiding, fistula, re-operation and urethral stricture). Core outcomes in boys aged 11-16 years (cosmesis, curvature, voiding, stricture and psychosocial status) and boys >16 years (cosmesis, curvature, erection, voiding and psychosexual development) varied more. Conclusion Outcomes to include in a COS were consistent in younger boys. A larger variety was observed in older boys and reflects less clarity on relevant outcomes., (S. Karger AG, Basel.)

Background and Objective: We present an overview of the 2024 updates for the European Association of Urology (EAU)/European Society for Paediatric Urology (ESPU) guidelines on paediatric urology to offer evidence-based standards for perioperative management, minimally invasive surgery (MIS), hydrocele, congenital lower urinary tract obstruction (CLUTO), trauma/emergencies, and fertility preservation., Methods: A broad literature search was performed for each condition. Recommendations were developed and rated as strong or weak on the basis of the quality of the evidence, the benefit/harm ratio, and potential patient preferences., Key Findings and Limitations: Recommendations for perioperative management include points related to fasting, premedication, antibiotic prophylaxis, pain control, and thromboprophylaxis in patients requiring general anaesthesia. MIS use is increasing in paediatric urology, with no major differences observed among different MIS approaches. For hydrocele, observation is the initial approach recommended. For persistent cases, treatment varies according to the type of hydrocele. CLUTO cases should be managed in tertiary centres with multidisciplinary expertise in prenatal and postnatal management. Neonatal valve ablation remains the mainstay of treatment, but associated bladder dysfunction requires continuous treatment. Among urological traumas and emergencies, renal trauma is still an important cause of morbidity and mortality. Conservative management has become the standard approach in haemodynamically stable children. Ischaemic priapism is a medical emergency and requires stepwise management. Initial management of nonischaemic priapism is conservative. Fertility preservation in prepubertal children and adolescents has become an increasingly relevant issue owing to the ever-increasing number of cancer survivors receiving gonadotoxic therapies. A major limitation is the scarcity of relevant literature., Conclusions and Clinical Implications: This summary of the 2024 EAU/ESPU guidelines provides updated guidance for evidence-based management of some paediatric urological conditions., Patient Summary: We provide a summary of the updated European Association of Urology/European Society for Paediatric Urology guidelines on paediatric urology. There are recommendations on steps to take before and immediately after surgery, management of hydrocele, congenital lower urinary tract obstruction, and urological trauma/emergencies, as well as preservation of fertility. Recommendations are based on a comprehensive review of recent studies., (Copyright © 2024 European Association of Urology. Published by Elsevier B.V. All rights reserved.)

Background: Most parents have anxiety before a pediatric surgical procedure. Parental anxiety may impair the parents' ability to cope with new or stressful situations while their children are undergoing surgery. By effectively improving the education of parents regarding the diagnosis, treatment, and potential complications of hypospadias and surgical repair, it might be feasible to reduce their anxiety during this process., Objective: To determine whether structured audiovisual information would reduce parents' anxiety levels compared to classic verbal information., Material and Methods: The diagnosis was made and, treatment options were explained, and State-Trait Anxiety Inventory Form - State Anxiety (STAI-I) forms were filled out by parents at the first consultation. In the second consultation, parents were divided into structured audio-visual-information (Group-1) and classic verbal information (Group-2) groups. Following these consultations, all parents in both groups filled out STAI-I again. Parents filled out the forms for the last time on the postoperative-14th-day and the results were compared., Results: A total of 124 (51.2%) parents were informed with structured-audiovisual-informational material and 118 parents (48.8%) were informed with classic verbal information. First STAI-I scores were 57.65 ± 5.17 and 56.91 ± 5.28 for Group-1 and Group-2, respectively, and there was no difference between the groups (p = 0.709). The STAI-I scores after the second consultation were 44.82 ± 5.65 and 49.42 ± 2.81 for Group-1 and Group-2, respectively. Parental anxiety decreased in both groups following the second consultation. Notably, a statistically significant superiority was found between the groups in favor of Group-1 (p = 0.001)., Discussion: Parents whose children will undergo hypospadias surgery experience significant anxiety. We observed that informing patients adequately and in appropriate language using a suitable method was associated with less anxiety. Preoperative parental anxiety is influenced by several variables, including parent age, parent gender, child age, lack of knowledge, and concerns over complications or pain. Although we are unable to alter the factors of child age and parent gender, we can impact parents' concerns regarding postoperative pain and anesthesia by enhancing their comprehension of the procedure via providing them of sufficient and accurate information., Conclusion: Providing parents with structured audio-visual information about the preoperative and postoperative period before hypospadias surgery is associated with lower parental anxiety levels. Supplying structured audiovisual information regarding the preoperative and postoperative periods can help parents have an improved comprehension of the procedure and minimize their anxiety., Competing Interests: Conflicts of interest There is no conflict of interest., (Copyright © 2024 Journal of Pediatric Urology Company. Published by Elsevier Ltd. All rights reserved.)

Background: This study investigated the effect of the discontinuation of vitamin D supplementation on kidney stone formation in children under 2 years of age., Methods: This study involved a retrospective analysis of two patient groups. The first group comprised postoperative patients who were stone-free, while the second group consisted of asymptomatic patients with kidney stones. The patients who discontinued vitamin D supplementation and those who continued were compared in terms of stone formation and stone size progression. The data collected included patient characteristics, stone size measurements, and laboratory results., Results: The findings showed that the discontinuation of vitamin D supplementation was not associated with kidney stone formation or the progression of stone size in either group. For patients who were stone-free on ultrasonography 1 month after the operation, according to the 12-month ultrasonography evaluation, in the group that discontinued vitamin D, 42 (78%) patients had no stones, 6 (11%) patients had stones larger than 3 mm, and 6 (11%) patients had microlithiasis. However, in the group that continued vitamin D, 49 (72%) patients were stone-free, 10 (15%) patients had stones larger than 3 mm, and 9 (13%) patients had microlithiasis. There was no difference between the groups in terms of stone status at 12 months (p = 0.76). For patients with asymptomatic kidney stones, the initial stone sizes were similar between the groups (p = 0.74). During the 6th month of ultrasound, the changes in stone size were 1.76 ± 1.81 mm and 1.79 ± 1.75 mm for the two groups, respectively (p = 0.9). During the 12-month ultrasound measurement, the changes in stone size were 1.98 ± 2.93 mm and 2.60 ± 2.48 mm for the two groups, respectively (p = 0.09)., Conclusions: We believe that more research is needed to make definitive recommendations regarding vitamin D prophylaxis in infants with kidney stones. Although the first objective of our study is not conclusively proven with the current findings, we recommend continued vitamin D prophylaxis in infants with urolithiasis., Competing Interests: Conflict of interest None., (Copyright © 2024 Journal of Pediatric Urology Company. Published by Elsevier Ltd. All rights reserved.)

Backgound: The aim of this study is to examine the long-term prognosis of children with ureteropelvic junction obstruction-like hydronephrosis (UPJO-like HN)., Patients and Methods: The files of children with hydronephrosis (HN) were analyzed retrospectively. Patients with vesicoureteral reflux (VUR) and other genitourinary anomalies were excluded. The final status of the HN, the need for surgery, and urinary tract infection (UTI) frequency were evaluated., Results: The study included 219 patients with 302 renal units (RU) with HN. Surgery rate was higher in RUs with larger kidney size and parenchymal thinning (p:<0.001 for both). Hydronephrosis resolved in 113 (40.2%) RUs, improved in 66 (23.3%), unchanged in 100 (35.5%) and worsened in 4 (1.4%). The frequency of recovery and improvement was found to be less in RUs with severe HN, large kidney size, and thin parenchyma. The UTI frequency was higher in severe HN group (12.2% vs 30.6% p:<0.001)., Conclusions: Children with mild HN had an excellent prognosis. Although the majority of the patients with high-grade HN had also a good prognosis, it seems important to closely follow up patients with severe HN, increased kidney size, and accompanying parenchymal thinning. Clinicians should be aware of the increased frequency of UTIs in children with severe HN., Competing Interests: The authors declare that they have no conflict of interest., (Thieme. All rights reserved.)

Background: Children's urinary system stones may develop from environmental, metabolic, anatomical, and other causes. Our objective is to determine the recurrence and prognosis, demographic, clinical, and etiological characteristics of children with urolithiasis., Methods: Medical records of patients were evaluated retrospectively. Patients' demographic data and medical history, serum/urine biochemical and metabolic analysis, blood gas analysis, stone analysis, imaging findings, and medical/surgical treatments were recorded., Results: The study included 364 patients (male 187). Median age at diagnosis was 2.83 (IQR 0.83-8.08) years. The most common complaints were urinary tract infection (23%) and urine discoloration (12%). Sixty-two percent had a family history of stone disease. At least one metabolic disorder was found in 120 (88%) of 137 patients having all metabolic analyses: hypercalciuria was found in 45%, hypocitraturia in 39%, and hyperoxaluria in 37%. Anatomical abnormalities were detected in 18% of patients. Of 58 stones analyzed, 65.5% were calcium and 20.6% were cystine stones. Stone recurrence rate was 15% (55/364). Older age (> 5 years), family history of stone disease, stone size (≥ 5 mm), and urinary system anatomical abnormalities were significantly associated with stone recurrence (p = 0.027, p = 0.031, p < 0.001, and p < 0.001, respectively). In adjusted logistic regression analysis, stone size ≥ 5 mm (OR 4.85, 95% CI 2.53-9.3), presence of urinary system anatomical abnormalities (OR 2.89, 95% CI 1.44-5.78), and family history of stone disease (OR 2.41, 95% CI 1.19-4.86) had increased recurrence rate., Conclusions: All children with urolithiasis should be evaluated for factors affecting stone recurrence. Children at higher risk of recurrence need to be followed carefully., (© 2024. The Author(s).)

Background and Objective: The prescriptive literature on vesicoureteral reflux (VUR) is still limited and thus the level of evidence is generally low. The aim of these guidelines is to provide a practical approach to the treatment of VUR that is based on risk analysis and selective indications for both diagnostic tests and interventions. We provide a 2023 update on the chapter on VUR in children from the European Association of Urology (EAU) and European Society for Paediatric Urology (ESPU) guidelines., Methods: A structured literature review was performed for all relevant publications published from the last update up to March 2022., Key Findings and Limitations: The most important updates are as follows. Bladder and bowel dysfunction (BBD) is common in toilet-trained children presenting with urinary tract infection (UTI) with or without primary VUR and increases the risk of febrile UTI and focal uptake defects on a radionuclide scan. Continuous antibiotic prophylaxis (CAP) may not be required in every VUR patient. Although the literature does not provide any reliable information on CAP duration in VUR patients, a practical approach would be to consider CAP until there is no further BBD. Recommendations for children with febrile UTI and high-grade VUR include initial medical treatment, with surgical care reserved for CAP noncompliance, breakthrough febrile UTIs despite CAP, and symptomatic VUR that persists during long-term follow-up. Comparison of laparoscopic extravesical versus transvesicoscopic ureteral reimplantation demonstrated that both are good option in terms of resolution and complication rates. Extravesical surgery is the most common approach used for robotic reimplantation, with a wide range of variations and success rates., Conclusions and Clinical Implications: This summary of the updated 2023 EAU/ESPU guidelines provides practical considerations for the management and diagnostic evaluation of VUR in children., Advancing Practice: For children with VUR, it is important to treat BBD if present. A practical approach regarding the duration of CAP is to consider administration until BBD resolution., Patient Summary: We provide a summary and update of guidelines on the diagnosis and management of urinary reflux (where urine flows back up through the urinary tract) in children. Treatment of bladder and bowel dysfunction is critical, as this is common in toilet-trained children presenting with urinary tract infection., (Copyright © 2023 European Association of Urology. Published by Elsevier B.V. All rights reserved.)

Introduction: Historically, ureteral reimplantation (UR) has been the gold standard for treatment of primary obstructive megaureter (POM) with declining renal function, worsening obstruction, or recurrent urinary tract infections. In infants, open surgery with reimplantation of a grossly dilated ureter into a small bladder, can be technically challenging with significant morbidity. Therefore, less invasive endoscopic management such as dilatation or incision of the ureter-vesical junction, has emerged as an alternative to reimplantation during the last decades., Objective: To systematically evaluate the effectivity, safety, and potential benefits of endoscopic treatment (dilatation with or without balloon or incision) of POM in comparison to UR., Study Design: A systematic review was conducted. Randomized controlled trials (RCTs), nonrandomized comparative studies (NRSs), and single-arm case series including a minimum of 20 participants and a mean follow-up more than 12 months were eligible for inclusion., Results: Of 504 articles identified, 8 articles including 338 patients were eligible for inclusion (0 RCTs, 1 NRSs, and 7 case series). Age at time of surgery was minimum 15 days to a maximum of 192 months. Indications for endoscopic treatment (ET) included patients with loss of split renal function (>10%) and worsening of hydroureteronephrosis. The studies analysed reported a success rate ranging from 35% to 97%. Success was defined as stabilization of differential renal function without further procedures. A post-operative complication rate of 23-60% was reported (mostly transient haematuria, urinary tract infections and stent migration or intolerance). In 14% of the cases salvage UR following initial ET, was performed due to relapse of symptomatic POM., Conclusion: Endoscopic treatment for persistent or progressive POM in children is a minimally invasive alternative to UR with a long-term modest success rate. Additionally, it can be performed within a wide age span, with equal success rate and complication rates., Competing Interests: Conflict of interest None., (Copyright © 2023 The Author(s). Published by Elsevier Ltd.. All rights reserved.)

Background: The management of poorly functioning kidneys (PFK) associated with ureteropelvic junction obstruction (UPJO) is controversial. There is contradictory information about how to best manage these cases: pyeloplasty or nephrectomy?, Objective: To systematically summarize the available evidence concerning the effects of pyeloplasty on the differential renal function of PFK in children with unilateral UPJO, highlighting the ongoing challenges in their definition, management, and long-term follow-up. In addition, we aim to verify potential predictors of renal functional recoverability that could help clinicians choose candidates for pyeloplasty., Methods: We searched several databases including PubMed, Embase, and Cochrane Library CENTRAL until August 20, 2021, according to the PRISMA guidelines. The following concepts were searched: pediatric, ureteropelvic junction obstruction, UPJO, pyeloplasty, recovery, split renal function, and differential renal function. We enrolled studies where the PFK was defined as preoperative differential renal function (DRF) ≤30% by renal scintigraphy. Potential predictors of renal functional recoverability were assessed and compared among studies. The quality of the included studies was evaluated using a modified version of the Newcastle-Ottawa scale (NOS)., Results: 1499 citations perceived as relevant to screening were retrieved. After screening, 20 studies were included, comprising a total of 625 cases. The number of patients in each study varied between 5 and 84, while the average post-surgical follow-up duration ranged between 3 months and 180 months. The most significant preoperative predictive factor for postoperative functional recoverability was the baseline DRF, especially when antenatally diagnosed. The quality was considered average in a significant portion of included studies., Conclusion: A significant proportion of PFK showed an increase of DRF post-pyeloplasty. However, no consistent predictive factors for functional recoverability have yet been determined apart from preoperative DRF. Until further evidence appears, pyeloplasty should be considered a valid option in the armamentarium of UPJO management in PFK., Competing Interests: Conflict of interest The authors declare no potential conflicts of interest concerning the research, authorship, and/or publication of this article., (Copyright © 2022 Journal of Pediatric Urology Company. Published by Elsevier Ltd. All rights reserved.)

Objective: Bladder wall thickness (BWTh) measurements and Nerve Growth Factor (NGF) /creatinine (Cr) values, as noninvasive tools, were found to predict daytime voiding problems in children with overactive bladder (OAB). The goal of this research was to examine if bladder wall thickness together with urine NGF/Cr could be a clinical utility in treatment outcome of OAB in children., Patients and Methods: A total of 60 children with OAB, (Group 1; n=40) and healthy normal controls (Group 2; n=20), aged 6-14 years old were involved in this prospective study. Children were evaluated with detailed history and physical examination, including neurologic examination, and were asked to complete a self-reported questionnaire and a 3-day bladder diary with the aid of their parents. Uroflowmetry was performed in all cases. Urinary nerve growth factor levels were measured by the ELISA and BWTh was measured trans-abdominally by one uro-radiologist specialized in pediatric ultrasonography. Urinary NGF levels were normalized by urinary creatinine levels and compared among all subgroups. Children with OAB received urotherapy as first line treatment at least for three months. 18 children refractory to urotherapy received anticholinergic therapy defined as group 3., Results: The median age of the study group was 10 (range 6 to 16). After urotherapy, 22 children had similar BWTh and NGF/Cr values compared to controls. (2.75 ± 1.15; 2.40 ± 1.00 mm; p=0.86 and 1.02 ± 0.10; 0.78 ± 0.15; p=0.12, respectively). After anticholinergic treatment, BWTh levels (2.25 ± 0.90; 2.40 ± 1.00 mm; p=0.94) and NGF/Cr values (0.95 ± 0.10; 0.78 ± 0.15; p=0.42, respectively) had no significantly difference compared to controls (Group 2). In receiver operating characteristic analysis, bladder wall thickness was found to have sensitivity of 85% and specificity of 84.2% (3,20 AUC ,913; 95 %) and NGF/Cr had sensitivity of 90% and specificity of 92.1% (1,595; AUC ,947; 95 %) in predicting treatment outcome in children with OAB., Conclusions: Bladder wall thickness measurements and NGF/Cr values, as noninvasive tools, could guide outcomes in the treatment of children with overactive bladder., Competing Interests: None declared., (Copyright® by the International Brazilian Journal of Urology.)

The necessity of determining stone density by non-contrast computerized tomography (NCCT) before extracorporeal shock wave lithotripsy (ESWL) is a controversial topic due to the radiation exposure. We aimed to investigate whether stone density is helpful in predicting the success of ESWL in pediatric patients or not. In this retrospective study, database of a single center was used to identify 232 children aged between 2 and 16 years. Patients with abnormal renal anatomy, distal obstruction, a known cystine stone disease, a previous history of an intervention regarding stone, and an insufficient follow-up period (< 3 months) were excluded from the study. A total of 209 patients were included in the study (94 with NCCT, 115 without NCCT). Groups were compared in terms of stone size, stone location, and stone-free rate at 3 months after a single ESWL session. The mean age was 6.17 ± 3.27 years and 120 (57.4%) of the patients were male and 89 (42.6%) were female. Mean stone size was 11.7 mm in NCCT group and 12.3 mm in non-NCCT group (p 0.128). The complete stone clearance rate in NCCT and non-NCCT group at 3 months after ESWL was 57.4% (54/94) and 54.7% (63/115), respectively, and there was no statistically significant difference (p 0.316). In conclusion, unnecessary NCCT use should be avoided before ESWL considering the similar success rates after ESWL and the risk of exposure to radiation., (© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)