Voiding camp: A successful and unique bladder rehabilitation program for children with urinary incontinence

INTRODUCTION & BACKGROUND

Standard urotherapy is a well-established treatment for children with incontinence, although it is often challenging for both child and parents, and not always successful. As an alternative, several in- and outpatient bladder training programs have shown positive results on achieving continence. However, the disadvantage is the hospital environment, which can be more stressful for the child, and also quite expensive for society.

OBJECTIVE

The aim was to evaluate the outcome on achieving continence following a voiding camp, where standard urotherapy was applied during a one-week stay at a regular summer youth camp, outside the hospital.

STUDY DESIGN

Retrospective analysis of 105 children with urinary incontinence, followed in an expert centre for urinary incontinence for at least one year. Data at 7 different time points, before, during and until 6 months after voiding camp were collected.

RESULTS

Even though all children had regular follow-up in an expert centre for urinary incontinence for at least one year before participating voiding camp, only 15% of the children reached the recommended amount of daily fluid intake (1.5 L/day). Once minimal daily fluid intake was re-established during the voiding camp, an immediate increase in the maximum voided volume (MVV), and a decrease in the number of wet days and wet nights per week was noted. This effect on a higher MVV remained even 3 months after voiding camp.

DISCUSSION

Although sufficient daily fluid intake is a well-established part of standard urotherapy, up until now there was no data that proved the positive impact of sufficient daily fluid intake on bladder volume training and achieving continence in children.

CONCLUSION

Voiding camp, as an unique bladder rehabilitation program for children with incontinence, is a successful alternative treatment option. Optimizing the daily fluid intake during voiding camp had a major positive impact on bladder volume training and achieving continence in children.

A multi-institutional European comparative study of open versus robotic-assisted laparoscopic ureteral reimplantation in children with high grade (IV-V) vesicoureteral reflux

INTRODUCTION

Traditionally, open ureteral reimplantation (OUR) has been the standard treatment for primary vesicoureteral reflux (VUR) requiring reimplantation. Robotic-assisted laparoscopic ureteral reimplantation (RALUR) is gaining popularity and high success rates have been reported.

OBJECTIVE

In this multi-institutional study, we aimed to compare the perioperative and postoperative outcomes of OUR and RALUR for high-grade (IV + V) VUR in children.

STUDY DESIGN

A retrospective evaluation was performed collecting data from 135 children (0-18 years) who underwent high grade VUR surgical correction at nine European institutions between 01/01/2009 and 01/12/2020, involving either open or robotic approaches. Institutional review board approval was obtained. Patients with lower grades of VUR (≤III), previous history of open or endoscopic ureteral surgery, neurogenic bladder, or refluxing megaureter in need of ureteral tapering were excluded. Pre-, peri- and post-operative data were statistically compared.

RESULTS

Overall, 135 children who underwent either OUR (n = 68), or RALUR (n = 67) were included, and their clinic and demographic features were collected. The mean age of the open group was 11 months (interquartile range [IQR] 9.9-16.6 months), in the RALUR group it was 59 months (IQR 29-78mo) (p < 0.01); the open cohort had a weight of 11 kg (IQR 9.9-16.6 kg) while the RALUR group had 19 kg (IQR 13-25 kg) (p < 0.01). No significant differences were found for intraoperative (1.5 % vs 7.5 %, p = 0.09) or for postoperative complication rates (7.4 % vs 9 %, p = 0.15). Favorable outcomes were reported in the RALUR group: shorter time to stooling (1 vs 2 days), fewer indwelling urethral catheter days (1 vs 5 days), perioperative drain insertion time (1 vs 5 days) and a shorter length of hospital stay (2 vs 5 days) (p < 0.01). The success rate was 94.0 % and 98.5 % in the open and RALUR groups, respectively. The long-term clinical success rates from both groups was comparable:42 vs 23 months for open and RALUR, respectively.

DISCUSSION

This study reported a large multicentric experience focusing on high grade VUR. Furthermore, this study compares favorably to OUR in a safety analysis. There was also a trend towards higher success rates with RALUR utilizing an extravesical approach which has not been previously reported.

CONCLUSION

RALUR is an efficacious and safe platform to use during ureteral reimplantation for high grade VUR. The overall peri-operative and post-operative complication rates are at least equivalent to OUR, but it is associated with a faster functional recovery and time to discharge. Medium to long term success rates are also equivalent to OUR.

Pathways to paediatric urology subspecialisation: a study of casemix, incumbent attitudes and opinions

OBJECTIVE

To identify any self-reported differences or attitudes towards certification, publication, or practice patterns between adult urology and paediatric general surgery-trained paediatric urology providers. There are no known published differences in clinical/operative/research outcomes in either group.

METHODS

An 18-item cross-sectional survey was compiled through the EAU Young Academic Urologists (YAU) office and disseminated to a trans-Atlantic convenience sample of current practising paediatric urologists. This was created using a mini-Delphi method to provide current semi-quantitative data relating to current opinions and attitudes of this cohort.

RESULTS

A total of 228 respondents completed the survey, with female respondents representing 37% and 34% for urology and paediatric general surgery, respectively. Nearly 90% overall respondents felt that a full 2-year paediatric fellowship program was very important and 94% endorsed a collaborative dedicated paediatric urology on call service, with 92% supporting the joint development of transitional care. Urology managed higher numbers of bedwetting (p = 0.04), bladder bowel dysfunction (p = 0.02), endourological procedures (p = 0.04), and robotics (p = 0.04). Paediatric general surgery managed higher numbers of laparoscopic reconstruction (p = 0.03), and posterior urethral valve ablation (p = 0.002).

CONCLUSION

This study represents the first time that a cross-sectional cohort of paediatric urologists from different training backgrounds were compared to assess their productivity, practice patterns and attitudes. Paediatric urology is in a unique position to have two contributing specialities, with the ability to provide optimal transitional and lifelong care. We believe that there should be a strong emphasis on collaboration and to remove any historically-created barriers under policies of equity, diversity and inclusivity.

The habits of European urologists in the field of cryopreservation before the urological cancers treatment

INTRODUCTION

Treatments against urogenital cancers frequently have fertility side-effects. The strategy to preserve fertility after oncologic treatments is still a matter of debate with a lack of evidence and international guidelines. The aim of this study is to investigate fertility preservation practices before urogenital cancer treatments and to compare national habits.

MATERIAL AND METHODS

An online anonymous survey was submitted from January to June 2021 to six European urological societies. The 31-items questionnaire included questions about demography, habits of evaluation, and management of fertility preservation in case of urogenital cancer treatments.

RESULTS

Two hundred twenty-eight urologists from six urological societies in five different countries (Belgium, The Netherlands, Luxembourg, France, Finland) filled out the survey. Three quarter (74%; n = 166) usually propose a cryopreservation before orchidectomy. In case of oligo/azoo-spermia, the technique performed for the sperm extraction during orchidectomy varies among the sample: 70.5% (n = 160) of the responders do not perform a Testicular Sperm Extraction (TESE) nor a Percutaneous Epididymal Sperm Aspiration (PESA). The cryopreservation for prostate cancer treatments is never proposed in 48.17% (n = 105) of responders but conversely it is always proposed in 5.05% (n = 11). The cryopreservation before bladder cancer treatments is not commonly proposed (67.5%, n = 154).

CONCLUSION

Our study showed variable country specific tendencies in terms of fertility preservation in the period of treatment of urological cancers. These differences seem to be related to national guidelines recommendations. Standardization of international guidelines is urgently needed in the field of fertility for urological cancer patients.

Neuropsychiatric Developmental Disorders in Children Are Associated With an Impaired Response to Treatment in Bladder Bowel Dysfunction: A Prospective Multi-Institutional European Observational Study

PURPOSE

Bladder and bowel dysfunction is a common but underdiagnosed pediatric entity which may represent up to 47% of pediatric urology consults. The objectives of this observational study were to determine functional 1-year outcomes following standard treatment of bladder and bowel dysfunction in both control and neuropsychiatric developmental disorder groups using validated questionnaires, and to perform an initial cost analysis.

MATERIALS AND METHODS

This was a prospective observational study conducted across a number of academic European centers (July 2020-November 2022) for new bladder and bowel dysfunction patients. Parents completed a sociodemographic survey, information pertaining to prior neuropsychiatric developmental disorder diagnoses, as well as a number of validated functional scores.

RESULTS

A total of 240 patients were recruited. In the control bladder and bowel dysfunction group, the baseline Dysfunctional Voiding Scoring System and Childhood Bladder and Bowel Dysfunction Questionnaire scores were 20% and 17.% lower, respectively, after 1 year compared to the neuropsychiatric developmental disorder group. The change in improvement was diminished for the neuropsychiatric developmental disorder cohort in both Dysfunctional Voiding Scoring System and Childhood Bladder and Bowel Dysfunction Questionnaire scores. The odds ratio of full symptom resolution was 5.7 in the control cohort compared to the neuropsychiatric developmental disorder cohort. A cost analysis on prescribed medications at referral led to a total cost of €32,603.76 (US $35,381.00) in the control group and €37,625.36 (US $40,830.00) in the neuropsychiatric developmental disorder group.

CONCLUSIONS

This study demonstrates that pediatric patients with a neuropsychiatric developmental disorder exhibit more severe bladder and bowel dysfunction at baseline and throughout treatment with a lower overall quality of life, as well as 15.4% higher medication costs at referral. It is also important that parents' and caregivers' expectations are managed regarding higher levels of treatment resistance for functional bladder and bowel issues.

Secondary phallic prosthesis placement in transgender patients postmetoidioplasty: a case report on technique and outcome

Introduction

Gender affirming surgery is common among transgender and gender-nonconforming individuals. Genital gender-affirming surgery is a form of surgery that involves transformation and reconstruction of the genitalia while maintaining urologic and sexual function. Masculinizing genital gender-affirming surgery can involve the removal of the female genital and reproductive organs and the creation of a more masculine appearance by using phalloplasty or metoidioplasty techniques. While metoidioplasty has advantages such as limited scarring and preserved genital sensation and clitoral erection, it may not always guarantee the ability to void while standing or even penetrate a sexual partner.

Aim

To describe our method of secondary phallic enhancement after metoidioplasty with a phallic prosthesis.

Methods

Our case is based on a 39-year-old transgender male who underwent metoidioplasty with vaginectomy, scrotoplasty, and urethral lengthening. However, the original surgery was complicated by extensive hematoma formation in the suprapubic area and neoscrotum, leading to a buried position of the neophallus. Subsequent surgery was performed to reduce the prepubic fat pad and penoscrotal interposition, but it too was complicated by hematoma formation and wound dehiscence. To maximize phallic elongation, the tethering urethra was removed, and perineal urethrostomy was performed but could not sufficiently alleviate the buried phallus. As a further step to improve the outcome, we proposed the implantation of a specific phallic prosthesis designed for metoidioplasty with testicular prosthesis placement. Surgery was performed as a single procedure through a penoscrotal incision and greatly enhanced genital appearance.

Results

Three months after surgery, the patient had good sensation of the phallus and was able to have satisfactory sexual activity with his partner. However, he remained dissatisfied with the amount of prepubic tissue and opted to undergo further liposuction.

Conclusion

Phallic prosthesis implantation can be a procedure to improve the condition of multioperated cases of metoidioplasty with resistant phallic burying. Reconstruction with a phallic prosthesis was performed successfully in this case. However, long-term complications and functional outcomes, such as the ability to void while standing or penetrate a sexual partner, remain uncertain. Further experience is needed to determine the efficacy and safety of using a phallic prosthesis as a secondary procedure in patients undergoing metoidioplasty.

A cross-sectional analysis of paediatric urologists' current practices, opinions and areas of perceived importance in the delivery of adolescent & transitional care

INTRODUCTION

Complex urological anomalies often require continued care as patients reach adulthood. Adequate transition for adolescents with ongoing urological care needs is critical to allow for seamless care in adult hospitals. Studies have shown that this can lead to improved patient and parental satisfaction, and lower utilisation of unplanned inpatient beds and emergency department visits. There is currently no ESPU-EAU consensus on the adequate mechanism and very few individual papers examining the role of urological transition for these patients in a European setting. This study aimed to identify current practice patterns in paediatric urologists providing adolescent/transitional care, to assess their opinions towards formal transition and to look for variations in care. This has implications for long-term patient health and specialist care.

METHODS

An 18-item cross-sectional survey was compiled and pre-approved through the EAU-EWPU and ESPU board offices prior to dissemination to all registered ordinary members affiliated with the ESPU. This was created using a mini-Delphi method through the EWPU research meetings to provide current semi-quantitative data relating to current opinions and attitudes of this cohort.

RESULTS

A total of 172 respondents (55% paediatric general surgery; 45% urology) across 28 countries completed the survey. The majority of respondents were in practice >10 years and spent >80% time in paediatric urology. There was no formal transition process according to 50% respondents and over half of those that did have less than 1/month, with <10% using validated questionnaires. More than two-thirds respondents continued to provide care after transition, as >70% units had no designated corresponding adult service. Furthermore, 93% paediatric believe a formal transition service to be very important, using a multidisciplinary framework. A pareto chart demonstrated 10 specific conditions to be of most interest in transition to adulthood.

CONCLUSION

This is the first study to assess the requirements of paediatric urologists for adequate transitional care, however due to the nature of the survey's distribution, this was a non-scientific poll based on a convenience sample of respondents. It is critical that dual-trained or adult-trained urologists with a specific interest in paediatric urology work with current paediatric urologists in a multidisciplinary fashion to facilitate early transition based on the adolescent's developmental and biopsychosocial requirements. National urological and paediatric surgical societies need to make transitional urology a priority. The ESPU and EAU should collaboratively consider developing transitional urology guidelines to allow a framework by which this can occur.

Exstrophic bladder duplication in the sagittal plane: Surgical management of a rare case

INTRODUCTION

The bladder-Exstrophy-Epispadias complex (BEEC) contains a wide spectrum of congenital malformations. A treatment naïve refugee was referred to our center with what was identified as BEEC.

MATERIALS AND METHODS

A 27-year-old female patient was referred for total incontinence since birth by the general practitioner from the refugee center. An exstrophic bladder with blind ending ureteral orifices and a second non-exstrophic bladder with two orthotopic ureters was identified, demonstrating the bladder duplication in the sagittal plane. Laparotomy was performed, dissecting the exstrophic bladder plate caudally and using it as a ventral onlay to augment the non-exstrophic bladder. A Mitchell-type bladder neck reconstruction was performed with an autologous fascia sling around the bladder neck to obtain continence. As the patient had never voluntarily voided, chances of spontaneous voiding after surgery were low. Therefore creation of a continent Mitrofanoff-type vesicostomy was additionally realized and genital reconstruction was achieved.

RESULTS

12 months post operatively, the patient was completely continent, had a bladder capacity of 250 ml, and performed self-catheterization 5 times a day. No post-operative complications were observed.

CONCLUSION

Admission of political refugees can implicate challenging surgeries for congenital malformations in adults, such as BEEC. This demonstrates the importance of multidisciplinary transitional care.

The self-assessment of genital anatomy, sexual function, and genital sensation (SAGASF-M) questionnaire in a Belgian Dutch-speaking male population: A validating study

INTRODUCTION

Penile and genital surgery for congenital or acquired conditions is daily practice in reconstructive urology. These procedures, which carry the risk of disrupting nerves and blood vessels, may impair the genital sensation, and affect the capacity for sexual pleasure. Self-reported tools are needed to systematically assess the male genitalia before and after reconstructive surgeries in terms of genital sensation and sexual experience.

AIM

This study validated the Dutch translation of the "self-assessment of genital anatomy and sexual functioning in male" (SAGASF-M) questionnaire and investigated the perceptions of healthy men regarding their genital anatomy and sensory function.

METHODS

Eight hundred and eight sexually active men with a median age of 39 years (18-79 years) and no history of genital procedures other than circumcision filled out an online version of the questionnaire. Twenty-four participants were randomly recruited to confirm the responses of the "self-assessment of genital anatomy and sexual functioning in male" questionnaire by a clinical evaluation.

MAIN OUTCOME MEASURES

The "self-assessment of genital anatomy and sexual functioning in male" questionnaire comprises of multiple-choice questions and clarifying illustrations asking men to rate their genital appearance, overall sexual sensitivity, and pain perception as well as the intensity and the effort to reach orgasm. Prespecified regions of the glans, penile shaft, scrotum, perineum, and anus are evaluated through this questionnaire.

RESULTS

Only slight variability in anatomical ratings was observed. Overall discrimination between different genital areas in terms of genital sensation was significant. The bottom of the glans or frenular area was rated the highest contributor to "sexual pleasure," followed by the other regions of the glans and shaft. The same distribution was found for "orgasm intensity" and "orgasm effort." The anal region was generally rated the lowest. "Discomfort/pain" was rated lower than any of the other sensory function indicators and the top of the glans and anal region were rated most likely to perceive this unpleasant sensation. Participants reported significantly more sexual pleasure and intense orgasms when stimulated by a sexual partner than self-stimulation. Homosexual and bisexual men reported a higher contribution of the perineal and anal regions in sexual pleasure and orgasm. No significant difference between circumcised and uncircumcised individuals regarding overall genital sensation could be found.

CONCLUSION

The Dutch translation of the SAGASF-M questionnaire is a valuable and reliable tool for self-assessment of genital anatomy and sensation, providing a site-specific attribution of a patient's perceived sexual function. Further prospective research with this questionnaire could aid in the patient-centered improvement of genital surgery.

Being born small for gestational age (SGA) might be associated with a higher reoperation rate in proximal hypospadias

PURPOSE

Being born small for gestational age (SGA) is associated with a higher frequency and more severe forms of hypospadias as well as with potential developmental differences. This study aims to characterize operative outcomes in SGA boys compared to boys born with normal weight and length for gestational age (appropriate/large for gestational age, AGA/LGA).

METHODS

Demographic data, hypospadias characteristics, associated pathologies and operative outcomes of boys who underwent hypospadias repair at a single center (10/2012-10/2019) were evaluated. Boys were categorized into SGA and non-SGA, which were then compared using unpaired t-tests and chi square tests. To examine the effect of SGA on reoperative risk, a logistic regression model was applied integrating surgical technique, meatal localization and complex hypospadias (narrow glans/plate, curvature, micropenis, bilateral cryptorchidism).

RESULTS

SGA boys accounted for 13.7% (n = 80) of the total cohort (n = 584) and 33% of all proximal hypospadias (n = 99, SGA vs. non-SGA 41.3% vs. 13%, p < 0.001). After a mean follow-up of 18.6 months the reoperation rate for all hypospadias was 17.9% (n = 105). In distal hypospadias there was no difference in reoperation rate between SGA and AGA/LGA boys (p = 0.548, multivariate regression model). For each meatal localization in proximal hypospadias SGA was a significant, independent factor predicting higher reoperation rates (p = 0.019, OR 3.21) in a logistic regression model (Figure ROC).

DISCUSSION

Hypospadias surgery carries a substantial risk for unplanned reinterventions. Apart from meatal localization, there are only a few factors (urethral plate quality, glandular diameter, curvature) reported in literature to be associated with reoperative risk. Intrauterine growth retardation associated with SGA might lead to not only a higher probability of proximal hypospadias but also contribute to a higher risk for complications mediated by developmental differences. Whether these findings could help to tailor surgical strategies or adjuvant measures, as for example the application of preoperative hormonal stimulation remains to be determined in future studies. This study is limited by being a single-center series with limited follow-up resulting in some complications probably not yet detected - however, in the same extent in both groups.

CONCLUSION

Based on this study, 33% of all proximal hypospadias cases occur in boys born SGA. While the reoperation rate in boys with distal hypospadias was not influenced by SGA status, SGA proved to be an independent predictor of a higher risk of reoperation in those with proximal hypospadias. After validation of these findings in other centers, this could be integrated into counseling and risk-stratification.

Urethral duplication as cause of incontinence in a 5-years-old female: Surgical approach

INTRODUCTION

Duplication of the urethra is a rare congenital anomaly in females which, if left unidentified, might cause refractory urinary incontinence. This video demonstrates its identification and treatment.

PATIENT & METHODS

A 5-year-old female was referred for primary refractory diurnal incontinence without any dry moment since birth. Initial clinical examination showed permanent urine leakage from an opening cranial to the clitoris. Ultrasound did not show any bladder or kidney abnormalities. A diagnostic cystoscopy under anesthesia revealed an accessory meatus located cranially to the orthotopic meatus and to the clitoris.

RESULTS

Lying in dorsal decubitus under general anesthesia, catheters were inserted in respectively the orthotopic and accessory meatus. The accessory meatus and urethra were dissected away into the bladder dome from a circumferential skin incision. Defects were closed and bladder drainage per urethram was left in situ for 10 days. P ostoperative recovery was uncomplicated. Complete resolution of the incontinence was immediately achieved at catheter removal. Daytime and night-time continence are observed with 3 years follow-up.

CONCLUSION

Urethral duplication is a rare finding in females but should be excluded during the workup of primary incontinence. In girls with isolated urethral duplication, resection of the accessory urethra is the best surgical option.

European Countries have different rates of sperm cryopreservation before vasectomy and at the time of reversal

INTRODUCTION

Effective male contraceptive options are condoms and vasectomy. Vasectomy should not be considered as a reversible method of contraception even if vasovasostomy can be offered to men to restore fertility after vasectomy. Therefore, there is a real questioning among urologist concerning cryopreservation before vasectomy. We carried out an international survey concerning the practice of cryopreservation before vasectomy and during vasovasostomy.

MATERIAL AND METHODS

An online anonymous survey was submitted from January to June 2021 to 6 European urological societies. The 31-items questionnaire included questions about demography, habits of cryopreservation before vasectomy or during vasectomy reversal and in case of urogenital cancers.

RESULTS

228 urologists from six urological societies in five different countries (Belgium, Netherlands, Luxembourg, France, Finland) answered the questionnaire. French urologists were more in favor of cryopreservation before vasectomy than other European urologists (p<0,0001). They also significantly found that not talking about cryopreservation before vasectomy is a medical fault unlike other urologists (p<0,0001). The specialization in andrology did not influence the choice of cryopreservation before vasectomy (p = 0,9452). The majority of urologists did not perform intraoperative sperm extraction during vasovasostomy (81%; n = 127) with a significant difference between urologists with or without andrology training (p = 0,0146). Success rates after vasovasostomy are significantly better for robot-assisted surgery (p = 0.0159) or with microscope (p = 0.0456) versus without microscope.

CONCLUSION

Cryopreservation before definitive sterilization significantly varies among European urologists and seems to be mostly dictated by habits than by knowledge. An international consensus is needed to standardize practices and guide patient's choice. This article is protected by copyright. All rights reserved.

Validation of the modified Bosniak classification system to risk stratify pediatric cystic renal masses: An international, multi-site study from the pediatric urologic oncology working group of the societies for pediatric urology

BACKGROUND

Pediatric cystic renal lesions are challenging to manage as little is known about their natural course. A modified Bosniak (mBosniak) classification system has been proposed for risk stratification in pediatric patients that takes ultrasound (US) and/or computed tomogram (CT) characteristics into account. However, literature validating this system remains limited.

OBJECTIVE

To determine if the mBosniak classification system correlates with pathologic diagnoses. The hypothesis is that mBosniak classification can stratify the risk of malignancy in children with renal cysts.

STUDY DESIGN

Patients treated for cystic renal masses with available imaging and pathology between 2000 and 2019 from five institutions were identified. Clinical characteristics and pathology were obtained retrospectively. Characteristics from the most recent US, CT, and/or magnetic resonance imaging (MRI) were recorded. Reviewers assigned a mBosniak classification to each scan. mBosniak scores 1/2 were considered low-risk and 3/4 high-risk. These groups were compared with pathology (classified as benign, intermediate, malignant). Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), positive likelihood ratio (+LR), and negative likelihood ratio (-LR) were calculated to assess this categorization as a screening tool to guide surgical intervention. Agreement between imaging modalities was also explored.

RESULTS

99 patients were identified. High-risk imaging findings were correlated with malignant or intermediate pathology with a sensitivity of 88.3%, specificity of 84.6%, PPV of 89.8%, NPV of 82.5%, +LR of 5.7, and -LR of 0.14. The sensitivity for detecting malignant lesions only was 100%. There was substantial agreement between US/CT (n = 55; κ = 0.66) and moderate agreement between US/MRI (n = 20; κ = 0.52) and CT/MRI (n = 13; κ = 0.47).

DISCUSSION

The mBos classification system is a useful tool in predicting the likelihood of benign vs. intermediate or malignant pathology. The relatively high sensitivity and specificity of the system for prediction of high-risk lesions makes this classification applicable to clinical decision making. In addition, all malignant lesions were accurately identified as mBosniak 4 on imaging. This study adds substantial data to the relatively small body of literature validating the mBosniak system for risk stratifying pediatric cystic renal lesions.

CONCLUSIONS

Pediatric cystic renal lesions assigned mBosniak class 1/2 are mostly benign, whereas class 3/4 lesions are likely intermediate or malignant pathology. We observed that the mBosniak system correctly identified pathology appropriate for surgical management in 88% of cases and did not miss malignant pathologies. There is substantial agreement between CT and US scans concerning mBos classification.

Long-term outcome of urethral and genital reconstruction in hypospadias and exstrophy-epispadias complex

PURPOSE OF REVIEW

Although immediate surgical outcomes of genitourinary reconstruction used to be the main focus in hypospadias and exstrophy-epispadias complex (EEC), recent research demonstrates rising concerns about long-term functional and psychosexual outcomes. Recent results about long-term outcomes of complex genitourinary reconstruction in those children transitioning into adulthood are summarized and discussed in this comprehensive review.

RECENT FINDINGS

Long-term outcomes in hypospadias focus on psychosexual satisfaction and decisional regret. Interestingly, uncomplicated hypospadias repair results in equal satisfaction rates to those found in controls. Most adult patients are happy with their parents' decision to have them undergo surgery during childhood. No decisional regret was found in parents. Reinterventions were associated with a decline in satisfaction, as was a decrease in perceived penile length. Long-term, males with EEC are more dissatisfied with penile length than with continence problems. In cases of severe penile insufficiency, phalloplasty shows promising psychosexual outcomes at the price of a high complication rate. Female EEC patients show higher rates of pregnancy complications, portending a higher risk of miscarriage.

SUMMARY

Psychosexual satisfaction of patients with repaired hypospadias transitioning into adulthood demonstrates equal satisfaction rates to those found in controls, without decisional regret associated with surgery during childhood. In EEC, more complications are seen when transitioning into a sexually active adult life.

Urethral Complications After Metoidioplasty for Genital Gender Affirming Surgery

BACKGROUND

Possible options of genital gender affirming surgery in transmasculine are metoidioplasty or phalloplasty. As opposed to phalloplasty, no flapbased neophallic reconstruction is needed in metoidioplasty. Urethral lengthening is needed in metoidioplasty if the patient desires voiding at the tip of the neophallus. This urethral lengthening poses the patient at risk for urethral complications.

AIM

Our primary goal was to describe the morbidity and specific the urethral complications related to metoidioplasty. Second, we sought for predictors of these urethral complications.

METHODS

Our institutional database was retrospectively analyzed to identify transmasculine who underwent metoidioplasty between 2006 and 2020. This cohort was further evaluated for surgical morbidity, urethral complications and potential predictors for urethral complications.

OUTCOMES

The rate of surgical morbidity and urethral complications (temporary/permanent fistula, stricture or fistula and stricture) was calculated. Potential predictors evaluated herein were BMI, concomitant vaginectomy, active smoking and additional urethral lengthening (AUL). They were tested with logistic regression analysis with calculation of Odds Ratio (OR).

RESULTS

Seventy-four patients underwent metoidioplasty with a median follow-up of 44 months. Median age was 26 years. AUL was done in 36 (48.6%) patients and established by a transverse preputial skin island and labium minus flap in respectively 34 and 2 patients. Within 30 days after metoidioplasty, 3 (4.1%) high-grade complications were noted. Urethral complications of any kind were noted in 42 (56.8%) patients. All fistulas, permanent fistulas and strictures were seen in resp. 34 (45.9%), 27 (36.5%) and 14 (18.9%) patients. AUL is a significant predictor for all urethral complications (OR 15.5), strictures (OR 24.5), all fistula's (OR 6.07) and permanent fistulas (OR 3.83). In contrast, smoking is only a predictor for all fistulas (OR 6.54) and permanent fistulas (OR 3.76).

CLINICAL IMPLICATIONS

Obtaining information about the risk of complications is important in preoperative patient counselling. Patient who desires AUL are at higher risk to develop urethral complications and patients who continue to smoke at the period of metoidioplasty have a higher risk of fistula formation.

STRENGTH & LIMITATIONS

Sufficient events to calculate predictors for urethral complications. However, this is a retrospective study with still a small number of patients with a relative short follow-up.

CONCLUSION

Urethral complications are frequent after metoidioplasty and approximately 50% needs corrective surgery. AUL is an independent risk factor for fistula and stricture formation, whereas smoking is a risk factor for fistula formation. Waterschoot M, Hoebeke P, Verla W, et al. Urethral Complications After Metoidioplasty for Genital Gender Affirming Surgery. J Sex Med 2021;18:1271-1279.

Urethral plate quality assessment and its impact on hypospadias repair outcomes: A systematic review and quality assessment

BACKGROUND

The variability of the urethral plate (UP) characteristics is one of the factors that influence technical choices for hypospadias correction. However, it is difficult to objectively evaluate the UP, leading to controversies in this subject, and vague terms utilized in the literature to describe its characteristics.

OBJECTIVE

We aim to analyze the previously described methods used to characterize and evaluate UP quality, emphasizing the pros and cons of each system, and highlighting its possible influence on different postoperative outcomes.

METHODS

We searched the databases PubMed, Embase, and Cochrane Library CENTRAL from January 1, 2000 to August 20, 2020. The following concepts were searched: urethra reconstruction/urethra replacement/urethroplasty AND hypospadias/hypospadias, AND children AND "plate" with the gray literature search. Subgroup analyses were also carried out. The quality of the involved studies was reviewed operating a modified version of the Newcastle-Ottawa Scale (NOS).

RESULTS

996 citations perceived as relevant to screening were retrieved. Thirteen studies were included comprising a total of 1552 cases. The number of patients in each study varied between 42 and 442, and the average post-surgical follow-up duration ranged between 6 months and twenty-six months. All studies used postoperative urethral stents of variable sizes and types. The impact of UP was most frequently assessed for cases treated with the tubularized incised plate (TIP) repair.

CONCLUSION

The UP quality seems to play a role as an independent factor influencing postoperative outcomes of hypospadias repair. Currently used strategies for the appraisal of UP quality are highly subjective with a low index of generalizability. Various attempts to overcome these limitations exist but none was consistently accepted, leaving a wide space for creative investigation in order to obtain an objective, reproducible, precise, and well-validated tool.

Clinical efficacy of transcutaneous tibial nerve stimulation (TTNS) versus sham therapy (part I) and TTNS versus percutaneous tibial nerve stimulation (PTNS) (part II) on the short term in children with the idiopathic overactive bladder syndrome: protocol for part I of the twofold double-blinded randomized controlled TaPaS trial

Background

Transcutaneous tibial nerve stimulation (TTNS) and percutaneous tibial nerve stimulation (PTNS) are effective and safe therapies for overactive bladder (OAB) syndrome in adults. However, few randomized sham-controlled trials have been conducted in a pediatric population. To our knowledge, both therapies never have been compared in children.

Aim

The aim of the complete study is twofold: (1) to assess the efficacy of TTNS therapy on bladder symptoms after 12 weeks of treatment in a pediatric population with idiopathic overactive bladder syndrome (iOAB) and/or nocturnal enuresis (part I) and (2) to assess the effect of TTNS compared to PTNS (part II). In this article, we aim to present the protocol of the first part of the TaPaS trial (TTNS, PTNS, sham therapy).

Methods

Part I of the TaPaS trial is set up as a single-center randomized-controlled trial. Children, aged from 5 to 12 years with iOAB and/or nocturnal enuresis, are assigned to two groups by computer-generated randomization: TTNS therapy (intervention) and sham therapy (control). The primary outcome is the percentage difference in average voided volume (AVV) between baseline and after 12 weeks of treatment. Secondary endpoints are the percentage difference in supervoid volumes, number of urinary incontinence episodes/24 h and in voiding frequency, the difference in parent reported outcomes between baseline and after 12 weeks of treatment, and the duration of clinical response.

Discussion

We hypothesize that TTNS is a non-inferior treatment for iOAB in children compared to PTNS therapy. Since literature is inconclusive about the efficacy of TTNS in a pediatric population, a sham-controlled RCT on TTNS will be conducted (part I). A protocol for a prospective randomized sham-controlled trial has been developed. Enrolment has started in November 2018. Study completion of part I is expected by August 2021.

Trial registration

ClinicalTrials.gov NCT 04256876. Retrospectively registered on February 5, 2020.

Supplementary Information

The online version contains supplementary material available at 10.1186/s13063-021-05117-8.

Remote consultations in paediatric urology-Not just for pandemics?

Although some centres have successfully integrated remote clinics into their paediatric urological practice, for many, remote clinics have developed due to the COVID-19 pandemic. One UK-based institution has integrated remote clinics in their practice for over two years and has developed guidelines considering which conditions may be suitable for remote consultations. These guidelines have been appraised by the European Association of Urology Young Academic Urologists paediatric working group. Through practical experience and anticipated difficulties, we have discussed considerations that paediatric urology departments should ponder when integrating remote clinics into their practice as we move forward from the pandemic.

Pediatric Challenges in Robot-Assisted Kidney Transplantation

Kidney transplantation is universally recognized as the gold standard treatment in patients with End-stage Kidney Disease (ESKD, or according to the latest nomenclature, CKD stage 5). Robot-assisted kidney transplantation (RAKT) is gradually becoming preferred technique in adults, even if applied in very few centra, with potentially improved clinical outcomes compared with open kidney transplantation. To date, only very few RAKT procedures in children have been described. Kidney transplant recipient patients, being immunocompromised, might be at increased risk for perioperative surgical complications, which creates additional challenges in management. Applying techniques of minimally invasive surgery may contribute to the improvement of clinical outcomes for the pediatric transplant patients population and help mitigate the morbidity of KT. However, many challenges remain ahead. Minimally invasive surgery has been consistently shown to produce improved clinical outcomes as compared to open surgery equivalents. Robot-assisted laparoscopic surgery (RALS) has been able to overcome many restrictions of classical laparoscopy, particularly in complex and demanding surgical procedures. Despite the presence of these improvements, many challenges lie ahead in the surgical and technical–material realms, in addition to anesthetic and economic considerations. RALS in children poses additional challenges to both the surgical and anesthesiology team, due to specific characteristics such as a small abdominal cavity and a reduced circulating blood volume. Cost-effectiveness, esthetic and functional wound outcomes, minimal age and weight to undergo RALS and effect of RAKT on graft function are discussed. Although data on RAKT in children is scarce, it is a safe and feasible procedure and results in excellent graft function. It should only be performed by a RAKT team experienced in both RALS and transplantation surgery, fully supported by a pediatric nephrology and anesthesiology team. Further research is necessary to better determine the value of the robotic approach as compared to the laparoscopic and open approach. Cost-effectiveness will remain an important subject of debate and is in need of further evaluation as well.

Implantation of the ZSI 475 FTM Erectile Device After Phalloplasty: A Prospective Analysis of Surgical Outcomes

BACKGROUND

Until recently, all available erectile devices were manufactured in accordance with the anatomy of a native penis and led to high explantation rates when implanted in the neophallus.

AIM

The aim of this study was to investigate surgical outcomes after implantation of the ZSI 475 FTM in the neophallus; this is the first erectile device specifically manufactured for implantation after phalloplasty.

METHODS

This is a prospective observational study of patients undergoing implantation of the ZSI 475 FTM in the neophallus at a tertiary referral center since September 2017. Patients with a follow-up < 3 months were excluded from this analysis.

OUTCOMES

Intraoperative and postoperative complications were analyzed with descriptive statistics and explantation-free survival was assessed using a Kaplan-Meier survival analysis.

RESULTS

In total, 57 patients were included with a median (IQR) follow-up of 16 (10-21) months. No intraoperative complications occurred. Postoperative complications were seen in 18 of 57 (32%) patients and included cylinder protrusion (1/57, 1.8%), infection (8/57, 14%), malpositioning (4/57, 7.0%), mechanical failure (4/57, 7.0%), and urinary retention (1/57, 1.8%). A total of 13 of 57 (23%) devices were explanted which corresponds with an estimated explantation-free survival rate (SD) of 84% (4.9), 80% (5.6), and 80% (5.6) after, respectively, 6, 12, and 18 months of follow-up.

CLINICAL IMPLICATIONS

By better addressing the specific needs after phalloplasty, this innovative erectile device might lead to improved cylinder protrusion, malpositioning, and mechanical failure rates, but device infection remains common.

STRENGTHS & LIMITATIONS

This is the largest study on this topic to date and the first to report prospective data. Main limitations involve the relatively small sample size and the limited follow-up.

CONCLUSION

Short-term cylinder protrusion, malpositioning, and mechanical failure rates are encouraging, although device infection remains a common problem. These complications resulted in a device explantation rate of 23%. Verla W, Goedertier W, Lumen N, et al. Implantation of the ZSI 475 FTM Erectile Device After Phalloplasty: A Prospective Analysis of Surgical Outcomes. J Sex Med 2021;18:615-622.

Phalloplasty in cis-men with penile insufficiency: evaluation of outcomes and surgical complications : Good ability to achieve orgasm, high urinary complication rate

Phalloplasty is the gold-standard treatment for cis-men with penile insufficiency, which is often secondary to congenital conditions. The study-objective is to evaluate the functional outcomes and surgical complications in this population. A retrospective database comprised of cis-men undergoing a phalloplasty at a tertiary referral center from 2004 to 2019 was created. Phalloplasty was performed with various flaps. The tube-within-tube-technique was used for urethroplasty when possible. Complications <30 days postoperative were categorized according to Clavien-Dindo. Functional outcomes were assessed by bladder emptying and ability to achieve orgasm. Thirty patients were included. Nineteen of them needed urethroplasty, the remaining 11 patients had a catheterizable stoma. Within 30 days postoperative, 3 patients (10%) developed partial-flap necrosis (Clavien-Dindo III), 1 patient (3.3%) developed graft failure (Clavien-Dindo III), 2 patients (6.6%) developed infected hematomas (Clavien-Dindo III) and 1 phalloplasty (3.3%) was complicated by hematuria (Clavien-Dindo II). In the long-term, 10 patients (33%) developed fistulae, 6 (20%) requiring urethroplasty. Seven patients (23%) had urethral strictures, all needing urethroplasty or urethrotomy. Sixteen patients (84%) emptied their bladder per urethra, the three remaining necessitated conversion to perineostomy. Median (IQR) Q_max on uroflow was 15.7 (11.9-19.2)mL/s with median (IQR) voiding volume of 259 (137-307) mL and median (IQR) residual volume of 11.5 (0-20) ml on ultrasound. All patients but 1 (97%) reported ability to achieve orgasm. RFFA and ALT result in phalli with great ability to achieve orgasm but urethral complications are frequent.

VeSpAR trial: a randomized controlled trial comparing vessel-sparing anastomotic repair and transecting anastomotic repair in isolated short bulbar urethral strictures

BACKGROUND

Vessel-sparing anastomotic repair (vsAR) has been developed as a less traumatic alternative to transecting anastomotic repair (tAR) to treat isolated short bulbar urethral strictures. This vessel-sparing technique could result in improved functional outcomes without jeopardizing the excellent surgical outcome after (transecting) anastomotic repair. The purpose of this study is to directly compare vsAR and tAR for both surgical and functional outcomes.

METHODS

This trial is a prospective, interventional, multi-center, single-blinded, 1:1 randomized, controlled, non-inferiority, phase II trial. Sample size calculation resulted in a required sample size of 100 patients (50 patients per arm). Trial participants will be randomized by an independent third party using a computer-based random sequence generator with permuted blocks of variable size. The primary objective of this trial is to show that vsAR is non-inferior to tAR in terms of failure-free survival after 24 months of follow-up, considering a non-inferiority limit of 10%. Failure is defined as the inability to pass a 16-Fr flexible cystoscope through the reconstructed area without damaging the urethral mucosa. Secondary end-points mainly include differences in postoperative complications and changes in functional outcome parameters, which will be assessed with validated questionnaires. All participants are scheduled for follow-up at 3, 12, and 24 months postoperatively.

DISCUSSION

This trial will provide level Ib evidence about the differences in both surgical and functional outcome between vsAR and tAR, which may importantly scape the future of bulbar urethral reconstruction. Depending on the trial results, this phase II trial may generate a larger phase III trial with more statistical power and a lower alpha value.

TRIAL REGISTRATION

This trial is registered at clinicaltrials.gov ( NCT03572348 ) and in the Belgian Clinical Trial Registry (B670201837335). The trial was registered prospectively. Registered on 28 June 2018.

Phalloplasty in biological men with penile insufficiency

INTRODUCTION

Phalloplasty for penile insufficiency in biological men differs from trans-men by incorporating native tissue. The study objective was to report surgical and functional outcomes of phalloplasty in biological men.

PATIENTS & METHODS

Phalloplasty was performed with a radial free forearm (RFFA) or pedicled anterolateral thigh (ALT) flap. The tube-within-tube technique was used for urethroplasty. Complications <30 d postoperative were categorized according to Clavien-Dindo.

RESULTS

30 patients, median (IQR) age of 21 (18-30)y, were included. 17 patients (57%) had penile insufficiency due to exstrophy or hypospadias surgeries, 7 patients (23%) due to sexual development disorders. In 16 patients RFFA was used. 19 patients needed urethroplasty, the rest catheterized through stoma. Median follow-up was 33 (14-80)mo. Within 30 d postoperative, 1 patients (3.3%) had Clavien-Dindo II and 6 patients (20%) Clavien-Dindo III complications. On long-term, 10 patients (33%) developed fistula, 6 needing urethroplasty. 7 patients (23%) had urethral strictures, all needing surgical intervention. All patients but one (98%) had erogenous sensitivity in the neo-phallus. All urethroplasty patients reported antegrade ejaculation. 16 patients (84%) voided through the urethra. 21 patients (70%) had an erectile device implanted.

CONCLUSION

RFFA and ALT result in good erogenous sensitivity but fistulas and strictures are frequent.

Intradetrusor onabotulinum-a toxin injections in children with therapy-resistant idiopathic detrusor overactivity. A retrospective study

INTRODUCTION AND OBJECTIVE

The use of intravesical onabotulinum-A toxin (BoNT-A) injections in the treatment of idiopathic detrusor overactivity has been widely studied in adults [2-5]. However, in pediatric populations, study groups are small, and results are not yet sufficient to support this treatment as a standard practice. The aim of this study is to determine the effectiveness and safety of this treatment in children with non-neurogenic detrusor overactivity, resistant to conservative therapy.

MATERIAL AND METHODS

We retrospectively evaluated the effect and safety of the intradetrusor injection of 100 Units (U) of BoNT-A in 257 children with therapy-resistant non-neurogenic detrusor overactivity between May 2003 and August 2017. Outcome parameters were the number of daytime incontinence and enuresis episodes per week and bladder capacity (BC). Treatment outcomes were classified into complete response, partial response, or no response.

RESULTS

The database includes 257 children, of which are 102 girls and 155 boys. Median age of first BoNT-A injection was 8 years (range 4-18 years). Of the patients with enuresis, daytime incontinence or both, a complete response was seen in 50%, 45.7%, and 17%, respectively. BC was significantly higher after the first, second, and third injection of 100 U BoNT-A. We estimated that the mean duration of the effect of an injection with a dose of 100 U is around 12 months. After the first injection, one girl (0.4%) developed urinary retention, which required temporary clean intermittent catheterization (CIC). Seventeen patients (6.6%) developed a urinary tract infection. In three patients (1.2%), postoperative vesicoureteral reflux was seen.

DISCUSSION

A distinction between the effect on daytime incontinence and enuresis was made. A poorer effect on enuresis in children who suffered from both conditions was observed. Drawbacks of this study are its retrospective design and the lack of anticholinergic treatment standardization before and after BoNT-A injection.

CONCLUSION

BoNT-A injection is a potentially effective adjuvant therapy in the treatment of children with therapy-resistant overactive bladder (OAB). Bladder capacity increases significantly after the first, second, and third injections. A better effect on daytime incontinence than on enuresis was seen. Prospective randomized trials with standardization of conservative treatment and symptoms questionnaires are necessary to confirm the beneficial effect of BoNT-A injections on BC and incontinence.

Fertility and sexuality issues in congenital lifelong urology patients: male aspects

PURPOSE

To review existing literature about fertility and sexuality of boys born with complex congenital genitourinary anomalies.

METHODS

A Pubmed review was performed in December 2018 to identify the most relevant original manuscripts regarding male complex congenital conditions affecting the urogenital system in male patients including spina bifida (SB), bladder exstrophy-epispadias complex (BEEC) and hypospadias. A comprehensive review was drafted exploring sexual dysfunction from a medical, psychosexual, surgical and reproductive point of view during transition from childhood (or adolescence) to adulthood.

RESULTS

About 75% of men with SB have erectile dysfunction (ED) (Gamé et al. in Urology 67(3):566-570, 2006; Diamond et al. in 58(4):434-435, 1986). Most SB patients have impaired sexual development mainly due to diminished self-esteem, dependence on caregivers and lack of privacy (Blum et al. in Pediatrics 88(2):280-285, 1991). Men with BEEC have fewer intimate relationships than women because of the greater difficulties with issues regarding their genitalia and sexual activities (Deans et al. in Am J Obstet Gynecol 206(6):496.e1-496.e6, 2012). However, a good quality of life is achievable with the effective use of coping strategies (Deng et al. in Transl Androl Urol 7:941, 2018; Rikken et al. in BMC Womens Health 18(1):163, 2018; Friedler et al. in Reprod Biomed Online 32(1):54-61, 2016). Chordee occurs in 25% of all hypospadias patients. More severe hypospadias is related to a greater risk for complications. The long-term sexual quality of life (QoL) in men who underwent hypospadias surgery is influenced by a lot of factors. Therefore, an interactive and dynamic biopsychosocial model of sexual QoL was proposed.

CONCLUSIONS

The care of patients with congenital urologic conditions becomes a challenge especially in the period of 'transition'. The goal of follow-up is a holistic management viewed from a medical, psychosexual, surgical end reproductive point. All patients should be asked for specific urinary, fecal or sexual concerns.

Androgen receptor expression in preputial dartos tissue correlates with physiological androgen exposure in congenital malformations of the penis and in controls

INTRODUCTION

The androgen receptor (AR) plays an important role in the development of male genitalia, and impaired androgen signalling has been hypothesised to underlie congenital penile malformations (CPM) such as hypospadias. Previous studies exploring the role of AR expression in the development of CPM have yielded conflicting results.

OBJECTIVES

To assess AR expression in human foreskin of boys/men born with hypospadias, buried penis versus controls.

STUDY DESIGN

Foreskin samples of 428 boys and men undergoing primary penile surgery (198 controls, 197 hypospadias, and 33 buried penis) were collected between October 2013 and July 2018. AR staining was performed in all samples and semi-quantitatively scored by two researchers independently, using a modified quick score (mQuicks) that assesses the proportion and intensity of AR staining in smooth muscle fibres.

RESULTS

The interobserver variability of the mQuicks had a high level of agreement for the total score, as well as for the subscores. Two phases of high AR expression were observed in all groups, the first following the postnatal gonadotropin surge (i.e., mini-puberty) and the second in (pre-) puberty. No differences in AR expression were found in hypospadias or buried penis cases as compared to controls matched for age at time of surgery.

DISCUSSION

This study describes the physiological evolution in AR expression in the human foreskin of boys with CPM and explains the cause of the previously reported, conflicting results. Despite the very large cohort, the limitations of this study are the low number of cases younger than six months at the time of surgery and the lack of Tanner stages to correlate with the mQuicks in adolescents.

CONCLUSIONS

The mQuicks is a straightforward and informative tool to semi-quantitatively assess AR expression in the dartos tissue. In this study, AR expression in human foreskin shows a bimodal distribution in boys with CMP and controls, following physiological androgen exposure. No statistically significant difference in AR expression could be found between both groups. Whether other local mechanisms are affected by these physiological changes is currently unclear. However, strict age-matching should be considered when exploring the mechanisms underlying disturbed penile and urethral development in CMP.

Perineal Urethrostomy for Complicated Anterior Urethral Strictures: Indications and Patient's Choice. An Analysis at a Single Institution

OBJECTIVES

To explore indications for a definitive perineal urethrostomy (PU). To objectify the proportion of patients not completing the final stage procedure in an intended multi-stage urethroplasty. To analyze the incentives for both of these scenarios.

MATERIALS AND METHODS

Since 2000, data of all men undergoing urethroplasty at our center have been collected in a database. This study included patients with a definitive PU and patients after ≥1 stages of an intended multi-stage urethroplasty. Patients <18 years or with a follow-up <3 m were excluded. Descriptive statistics were used and groups were compared with nonparametric statistical tests.

RESULTS

Among 1015 urethroplasties, 34 patients underwent a definitive PU and 63 underwent ≥1 stages of an intended multi-stage urethroplasty with a median (IQR) follow-up of respectively 57 (31-120) and 32 (14-101) months. In the definitive PU group, patients were significantly older (P < .001) and had more cardiovascular comorbidity (P = .01), panurethral stricture disease (P = .02) and longer strictures (P = .02) than patients in the multi-stage urethroplasty group. Half of the definitive PUs were surgeon driven and 33% were patient driven. Final stage procedures were completed by 35/63 (56%) patients. Patients not completing the final stage were significantly older (P = .001).

CONCLUSION

Definitive PU is particularly performed in older patients with worse cardiovascular condition, panurethral stricture disease and longer strictures. PU is often explicitly chosen by well informed patients and as nearly half of the patients refuse closure of the urethrostomy after the first stage, a definitive PU should be proposed as reasonable alternative to complicated urethral reconstruction from the start, especially in older patients.

Langerhans cells in hypospadias: an analysis of Langerin (CD207) and HLA-DR on epidermal sheets and full thickness skin sections

BACKGROUND

Hypospadias are among the most common genital malformations. Langerhans Cells (LCs) play a pivotal role in HIV and HPV infection. The migration of LC precursors to skin coincides with the embryonic period of hypospadias development and genetic alterations leading to the formation of hypospadias impact the development of ectodermally derived tissues. We hypothesized that this might be associated with a difference in frequency or morphology of epidermal and dermal LCs in hypospadias patients.

METHODS

A total of 43 patients from two centers were prospectively included into this study after parental consent and ethics approval. Epidermal and dermal sheets were prepared from skin samples of 26 patients with hypospadias, 13 patients without penile malformations and 4 patients with penile malformations other than hypospadias. Immunofluorescence staining of sheets was performed with anti-HLA-DR-FITC and anti-CD207/Langerin-A594 antibodies. Skin sections from 11 patients without penile malformation and 11 patients with hypospadias were stained for Langerin. Frequencies as well as morphology and distribution of epidermal and dermal LCs on sheets and sections were microscopically evaluated. Cell counts were compared by unpaired t-tests.

RESULTS

There was no difference in frequency of epidermal LCs, Neither on sheets (873 ± 61 vs. 940 ± 84LCs/mm², p = 0.522) nor on sections (32 ± 3 vs. 30 ± 2LCs/mm², p = 0.697). Likewise, the frequency of dermal LCs (5,9 ± 0,9 vs. 7.5 ± 1.3LCs/mm², p = 0.329) was comparable between patients with hypospadias and without penile malformation. No differences became apparent in subgroup analyses, comparing distal to proximal hypospadias (p = 0.949), younger and older boys (p = 0.818) or considering topical dihydrotestosterone treatment prior to surgery (p = 0.08). The morphology of the LCs was not different comparing hypospadias patients with boys without penile malformations.

CONCLUSIONS

LCs are present in similar frequencies and with a comparable morphology and distribution in patients with hypospadias as compared to children without penile malformations. This suggests that patients with hypospadias are not different from patients with normal penile development considering this particular compartment of their skin immunity.

Single-setting robot-assisted kidney transplantation consecutive to single-port laparoscopic nephrectomy in a child and robot-assisted living-related donor nephrectomy: initial Ghent experience

INTRODUCTION

Kidney transplantation (KT) is the gold-standard treatment for end-stage renal disease (ESRD) in children. Robot-assisted kidney transplantation (RAKT) in adults is becoming increasingly common with potentially improved morbidity compared with open KT. The study objective was to evaluate feasibility and outcomes of RAKT in children.

PATIENTS & METHODS

An 8-years-old boy with ESRD received a kidney transplant from his mother. Simultaneously in two operation theatres, the boy underwent single-port (GelPOINT®) right laparoscopic nephro-ureterectomy (LNU), and his mother underwent robot-assisted left donor nephrectomy (RADN).Two full surgical teams were operating at the same time. Subsequently, the boy underwent RAKT, introducing the graft through the GelPOINT®.

RESULTS

Total operative time for LNU, RADN, and RAKT was 180, 140, and 195 min, respectively, with warm, cold, and rewarming ischemia times 1.5, 200, and 47 min, respectively. Blood loss was 300, 20, and 50 cc, respectively. No intraoperative complications were noted. Convalescence of both donor and recipient was uneventful, with good kidney function at 1-year follow-up.

CONCLUSION

RAKT in children is technically feasible and safe, resulting in excellent graft function. Concomitant nephrectomy can be done laparoscopically through the single-site GelPOINT®. An experienced RAKT team with the full support of pediatric nephrologists is mandatory.

Rare and special robotic surgery indications in the pediatric population: ectopic organs and differences of sexual development

BACKGROUND AND OBJECTIVE

Differences of sexual development (DSD) affect the development of internal reproductive organs and external genitalia. Ectopic kidney is a rare and challenging pathology causing amongst others incontinence and recurrent urinary tract infections. Those pathologies may in certain cases be an indication for surgery. This manuscript aims to evaluate the role of robot-assisted laparoscopy in the surgical treatment of patients with ectopic kidneys or DSD.

MATERIALS AND METHODS

A prospective database is maintained in a tertiary referral center with all robotic surgeries performed in children. From this database, a prospective series of robot-assisted resection of embryologic remnants located in the pelvis was extracted: resection of a prostatic utricle cyst, removal of ectopic non-functional kidneys, and resection of a hemi-uterus.

RESULTS

From an initial database including 72 patients, six patients met the inclusion criteria. Three male patients presenting with utricle cysts, two young girls presenting with ectopic kidneys, and one young boy with pelvic embryological remnants of the uterus, were further evaluated.

CONCLUSION

Surgical treatment of patients with DSD is safe, feasible, and a good indication for robot-assisted laparoscopic surgery, as both deep dissection and reconstruction in a limited surgical field are requested.

Urethroplasty for urethral injuries and trauma-related strictures in children and adolescents: a single-institution experience

INTRODUCTION

Urethral injuries and trauma-related strictures (UITSs) in children are rare. The treatment is challenging but crucial to avoid life-long urinary complications such as recurrent stricture formation, urinary incontinence, and impotence.

OBJECTIVE

The aim was to report on the surgical and functional outcome of urethroplasty for UITSs and to provide data on patient-reported outcome measures (PROMs).

MATERIAL AND METHODS

Between November 2001 and October 2017, 18 male children (≤18 years; median: 13 years) underwent urethroplasty for UITSs at a single tertiary referral center. Etiology was iatrogenic in five (27.8%), perineal straddle injury in six (33.3%) and pelvic fracture urethral injury (PFUI) in seven (38.8%) patients. PFUIs and short (≤3 cm) bulbar strictures were treated by transperineal anastomotic repair (n = 15; 83.3%), whereas a long bulbar stricture and a penile stricture were treated by, respectively, a preputial skin graft and flap urethroplasty. A penetrating penile urethral injury during circumcision underwent early exploration with primary repair of the laceration. Failure was defined as need for additional urethral instrumentation. PROMs were sent to patients ≥16 years at the latest evaluation.

RESULTS

Median follow-up was 57 (range: 8-198) months. No complications and grade 1, 2, and 3 were present in, respectively, 13 (72.2%), two (11.1%), one (5.6%), and two (11.1%) patients. The success rate in a tertiary referral center was 94.4%. An immediate failure was observed in a patient with a PFUI and concomitant bladder neck injury. PROMs were available in 12 patients. Four patients (33.3%) reported erectile dysfunction. Post-void dribbling (25%) and urgency (50%) were the most frequently reported complaints. All patients were satisfied after urethroplasty and stated that they would undergo the surgery again.

DISCUSSION

This series corroborates the recent trend in favor of transperineal anastomotic repair for PFUI, with combined abdominoperineal approach reserved for complex situations (e.g. bladder neck injury). For anterior UITSs, adaption of the technique to the characteristics of UITSs (etiology, location, length, and quality of graft bed) yielded excellent outcomes. Future systematic use of PROMs is also needed in children to elucidate the impact of urethroplasty on the urinary and sexual function.

CONCLUSION

External trauma is the most important etiology of UITSs, but iatrogenic causes should not be neglected. Urethroplasty, mainly by anastomotic repair (AR) but with the technique adapted to local stricture characteristics if necessary, has an excellent long-term success rate in experienced hands. Functional disturbances are frequent, but despite this, patient satisfaction is high after urethroplasty.

Robot-assisted resection of ectopic kidney in children: An anatomical illustration

INTRODUCTION

Failure of kidney migration during embryonic life results in an ectopic kidney, with an incidence varying from 1 in 500 to 1 in 1200. Pelvic kidney can be a rare cause of recurrent urinary tract infection (UTI), warranting nephrectomy in some cases.

MATERIAL AND METHODS

A 7-year-old girl with a history of recurrent UTIs and vaginal discharge was diagnosed with a dysplastic afunctional ectopic kidney located in the pelvis, with ureter draining into the cervix or vaginal wall.

RESULTS

A robot-assisted approach was chosen, with side docking of the robot to allow concurrent vaginoscopic/hysteroscopic exploration. A uterus bicornis was found. The ectopic ureter was dissected toward its drainage in the vaginal wall, where it was sutured and resected. The dysplastic kidney and ureter were removed. Compared to pure laparoscopic approach, dissection deep into the pelvis toward the vaginal wall is aided by the robotic dexterity and facilitates complete resection of the structure, which avoids leaving a ureteric stump into the vaginal wall.

CONCLUSIONS

Robot-assisted surgery is a safe and effective option for resection of ectopic kidneys with ectopic ureter in children. Dissection up until the vaginal wall in children is aided by robotic dexterity, making this kind of surgery the ideal indication for robotic-assisted surgery.

Genitoplasty in newborn females with adrenogenital syndrome: Focus on the reconstruction technique and its outcomes

The adrenogenital syndrome is an autosomal recessive disorder in which an enzyme defect in the steroid pathway leads to excessive prenatal exposure of androgens. In the female fetus, masculinization of the external genitalia is observed. Surgery aims for functional and aesthetical reconstruction. Many techniques have been described. A video of our modified pull-through reconstruction technique is hereby presented. A retrospective descriptive database was created with patients who underwent genitoplasty for a CAH-associated genital condition. A video demonstrating the reconstructive technique was recorded while operating on a 9-month-old girl. Prior to surgery a cystoscopy is performed to evaluate the length of the urogenital sinus. Surgery starts with creating a reversed U-flap, after which the urogenital sinus is mobilized. The corpora cavernosa are released and the neurovascular bundle is isolated. To create vaginal space the urogenital sinus is subsequently separated. The vaginal introitus is anchored to the perineal skin flap. Labia minora are created by splitting the preputial skin. Finally excessive skin tissue is resected. Twenty-two female patients underwent reconstructive surgery for the adrenogenital syndrome in a tertiary referral centre over 16 years. Median age at surgery was 3 months (0-190). Median follow-up was 36 months (0-108) after surgery. A good functional and aesthetical outcome was observed. The modified pull-through technique, illustrated by this video, provided satisfactory results with a low complication rate. Follow-up until adulthood is needed to evaluate long-term outcomes.

Video Urodynamic Study in Female Adults With Air-filled Catheters: A Health-care Training Video

OBJECTIVE

To take the first step toward standardization of UDS with air-filled catheters, we present a video documenting a procedure for performing video UDS with air-filled catheters in female adults. According to The International Consultation on Incontinence (ICS), the aim of urodynamic studies (UDS) in clinical practice is to evaluate a patient's lower urinary tract function with at least 1 complete and representative filling-voiding-post-voiding cycle by testing with relevant pressures and flowmetry.¹ International guidelines state that UDS is preferably performed with fluid-filled catheters.^2,3 However, although air-filled catheters are widely used, further research is needed before these catheters can be recommended for routine clinical use.⁴ To our knowledge, no guide on how to perform UDS with air-filled catheters has been published.

METHODS

The UDS was conducted according to local protocol. The ICS recommendations mentioned above were used as a template for this protocol. Intravesical, intraurethral, and abdominal pressure were measured. The cysto-urethrometry filling cycle and pressure-flow study were performed in sitting position. Fluoroscopy was performed during filling and voiding phase at fixed points. Before starting the filling cycle, the patient was verbally instructed with visual aids (Fig. 1) to report bladder sensation. Filling rate was 10% of the largest voiding flow rate reported on the frequency volume chart. Initial baseline pressure was measured, and a cough pressure response test was performed.

RESULTS

Our procedure for video UDS with air-filled catheters in a female adult was demonstrated in an instruction video.

CONCLUSION

An instruction video on a standardized UDS with air-filled catheters in female adults is presented to take the first step toward standardization and for the benefit of health-care workers performing such tests.

Varicocele: the origin of benign prostatic hypertrophy? Testosterone dosages in the periprostatic plexus

OBJECTIVES

In 2008, Gat et al. wrote the hypothesis that benign prostatic hypertrophy (BPH) was caused by reflux from high free testosterone containing blood from varicocele. The purpose of this study is to measure testosterone at the prostatic veins in patients operated for large BPH, confirming Gat's theory.

MATERIAL AND METHODS

In 13 patients, operated by Millin technique, the periprostatic plexus was punctured in 45° tilted position in order to the measure total and free testosterone and dihydrotestosterone. Brachial blood was taken simultaneously for similar measurements. Seven patients had a clinical varicocele.

RESULTS

High testosterone levels, in comparison with the brachial blood, were detected in only two patients. Dihydrotestosterone was at least doubled in all cases, demonstrating that the puncture was done in prostatic drainage area.

CONCLUSION

Gat's theory, concerning the role of varicocele in the origin of BPH, could not be confirmed in this study. Technical limitations can be responsible for this.

Global minimally invasive pyeloplasty study in children: Results from the Pediatric Urology Expert Group of the European Association of Urology Young Academic Urologists working party

INTRODUCTION

Minimally invasive pyeloplasty (MIP) for ureteropelvic junction (UPJ) obstruction in children has gained popularity over the past decade as an alternative to open surgery. The present study aimed to identify the factors affecting complication rates of MIP in children, and to compare the outcomes of laparoscopic (LP) and robotic-assisted laparoscopic pyeloplasty (RALP).

MATERIALS AND METHODS

The perioperative data of 783 pediatric patients (<18 years old) from 15 academic centers who underwent either LP or RALP with an Anderson Hynes dismembered pyeloplasty technique were retrospectively evaluated. Redo cases and patients with anatomic renal abnormalities were excluded. Demographics and operative data, including procedural factors, were collected. Complications were classified according to the Satava and modified Clavien systems. Failure was defined as any of the following: obstructive parameters on diuretic renal scintigraphy, decline in renal function, progressive hydronephrosis, or symptom relapse. Univariate and multivariate analysis were applied to identify factors affecting the complication rates. All parameters were compared between LP and RALP.

RESULTS

A total of 575 children met the inclusion criteria. Laparoscopy, increased operative time, prolonged hospital stay, ureteral stenting technique, and time required for stenting were factors influencing complication rates on univariate analysis. None of those factors remained significant on multivariate analysis. Mean follow-up was 12.8 ± 9.8 months for RALP and 45.2 ± 33.8 months for LP (P = 0.001). Hospital stay and time for stenting were shorter for robotic pyeloplasty (P < 0.05 for both). Success rates were similar between RALP and LP (99.5% vs 97.3%, P = 0.11). The intraoperative complication rate was comparable between RALP and LP (3.8% vs 7.4%, P = 0.06). However, the postoperative complication rate was significantly higher in the LP group (3.2% for RALP and 7.7% for LP, P = 0.02). All complications were of no greater severity than Satava Grade IIa and Clavien Grade IIIb.

DISCUSSION

This was the largest multicenter series of LP and RALP in the pediatric population. Limitations of the study included the retrospective design and lack of surgical experience as a confounder.

CONCLUSIONS

Both minimally invasive approaches that were studied were safe and highly effective in treating UPJ obstruction in children in many centers globally. However, shorter hospitalization time and lower postoperative complication rates with RALP were noted. The aims of the study were met.

Nontransecting Anastomotic Repair in Urethral Reconstruction: Surgical and Functional Outcomes

PURPOSE

We evaluated the surgical and functional outcomes, and the effect of the learning curve of nontransecting anastomotic repair for short bulbar and posterior urethral strictures.

MATERIALS AND METHODS

A total of 75 patients were treated with nontransecting anastomotic repair for short bulbar strictures in 55 and for posterior strictures in 20. Surgical morbidity was scored using the Clavien-Dindo classification at 3 months. Sexual function was measured using SHIM (Sexual Health Inventory for Men) scoring preoperatively and postoperatively. Post-void dribbling before and after nontransecting anastomotic repair was also determined. To evaluate the learning curve outcomes were evaluated in patients 1 to 25, 26 to 50 and 51 to 75.

RESULTS

Median followup was 30 months. Stricture recurred in 6 patients (8%), all diagnosed within 7 months after nontransecting anastomotic repair. Median operative time was 95 minutes and median hospital stay was 2 days. In 61 patients (81.3%) no surgical morbidity was recorded. Five (6.7%), 6 (8%) and 3 patients (4%) experienced a grade 1, 2 and 3b complication, respectively. Seven of 32 (21.9%) and 2 of 42 evaluable patients (4.7%) reported de novo erectile dysfunction and post-void dribbling, respectively, 3 months after nontransecting anastomotic repair. No difference in outcomes was observed among the 3 patient groups.

CONCLUSIONS

Nontransecting anastomotic repair appears to be safe without a substantial learning curve effect. Patient counseling about possible surgical complications and transient erectile dysfunction is important.