Daytime urinary incontinence in children and adolescents

Cross-cultural adaptation and psychometric properties of the International Consultation on Incontinence Questionnaire Pediatric Lower Urinary Tract Symptoms (ICIQ-CLUTS): a Chinese validation study

BACKGROUND

Lower urinary tract symptoms (LUTS) are common in pediatric patients and significantly affect children's well-being and family-related quality of life. However, no validated Chinese assessment tool for LUTS exists. This study aimed to develop and validate a Chinese version of the International Consultation on Incontinence Questionnaire-Pediatric Lower Urinary Tract Symptoms (ICIQ-CLUTS).

METHODS

The ICIQ-CLUTS was translated following the Beaton cross-cultural adaptation guidelines. A total of 192 children with and without LUTS and their parents were enrolled between June and October 2024. Psychometric evaluation was performed using multiple approaches. Reliability was assessed using Cronbach's alpha coefficient for internal consistency. Validity was assessed by expert content review and exploratory factor analysis. Clinical diagnoses were made using standardized assessment protocols including medical history, physical examination, and laboratory tests (urinalysis and uroflowmetry) based on the International Children's Continence Society (ICCS) criteria. Using these clinical diagnoses as the reference standard, the diagnostic accuracy was evaluated using receiver operating characteristic (ROC) curve analysis.

RESULTS

The study included 192 participants (70.8% male) divided into two age groups: 5-9 years (n = 139) and 10-14 years (n = 53). The Chinese ICIQ-CLUTS showed acceptable internal consistency (Cronbach's alpha = 0.718 for children's version; 0.706 for parents' version) and distinct factor structure. The diagnoses encompassed various LUTS manifestations including monosymptomatic nocturnal enuresis (MNE), non-monosymptomatic nocturnal enuresis (NMNE), and overactive bladder (OAB). Both versions exhibited high diagnostic accuracy (AUC = 0.948 for children's version; 0.933 for parents' version), with superior performance observed in the 10-14-year age group (AUC = 0.963 and 0.960, respectively). The optimal cut-off points were 13.5 for both versions, with sensitivity of 0.90 and specificity of 0.86 for the children's version, and sensitivity of 0.89 and specificity of 0.85 for the parents' version.

CONCLUSION

The Chinese version of ICIQ-CLUTS shows good psychometric properties and diagnostic accuracy, making it a useful screening tool for pediatric LUTS in Chinese-speaking populations.

Innovative, Technology-Driven, Digital Tools for Managing Pediatric Urinary Incontinence: Scoping Review

BACKGROUND

Urinary incontinence affects approximately 7% to 10% of children during the day and 9% to 12% of children during the night. Treatment mainly involves lifestyle advice and behavioral methods, but motivation and adherence are low. Traditional tools such as pen-and-paper solutions may feel outdated and no longer meet the needs of today's "digital native" children. Meanwhile, digital interventions have already shown effectiveness in other pediatric health care areas.

OBJECTIVE

This scoping review aimed to identify and map innovative, technology-driven, digital tools for managing pediatric urinary incontinence.

METHODS

PubMed, Web of Science, and the Cochrane Library were searched in March 2022 without date restrictions, complemented by cross-referencing. Studies were eligible if they focused on pediatric patients (aged ≤18 years) with bladder and bowel dysfunctions and explored noninvasive, technology-based interventions such as digital health, remote monitoring, and gamification. Studies on adults, invasive treatments, and conventional methods without tangible tools were excluded. Gray literature was considered, but non-English-language, inaccessible, or result-lacking articles were excluded. A formal critical appraisal was not conducted as the focus was on mapping existing tools rather than evaluating effectiveness. Data analysis combined descriptive statistics and qualitative content analysis, categorizing tools through iterative coding and team discussions.

RESULTS

In total, 66 articles were included, with nearly one-third (21/66, 32%) focusing on nocturnal enuresis. Our analysis led to the identification of six main categories of tools: (1) digital self-management (7/66, 11%); (2) serious games (7/66, 11%); (3) reminder technology (6/66, 9%); (4) educational media (12/66, 18%), further divided into video (5/12, 42%) and other media (7/12, 58%); (5) telehealth and remote patient monitoring (13/66, 20%), with subcategories of communication (5/13, 38%) and technological advances (8/13, 62%); and (6) enuresis alarm innovations (21/66, 32%), further divided into novel configurations (8/21, 38%) and prevoid alarms (13/21, 62%).

CONCLUSIONS

The field of pediatric urinary incontinence demonstrates a considerable level of innovation, as evidenced by the inclusion of 66 studies. Many tools identified in this review were described as promising and feasible alternatives to traditional methods. These tools were reported to enhance engagement, improve compliance, and increase patient satisfaction and preference while also having the potential to save time for health care providers. However, this review also identified gaps in research, highlighting the need for more rigorous research to better assess the tools' effectiveness and address the complex, multifaceted challenges of pediatric urinary incontinence management. Limitations of this review include restricting the search to 3 databases, excluding non-English-language articles, the broad scope, and single-reviewer screening, although frequent team discussions ensured rigor. We propose that future tools should integrate connected, adaptive, and personalized approaches that align with stakeholder needs, guided by a multidisciplinary, human-centered framework combining both qualitative and quantitative insights.

Effect of mobile application-assisted education regarding urinary disorder on the quality of LIFE of affected children: A randomized controlled study

PURPOSE

This study aimed to evaluate the effects of mobile-application-assisted education on lower urinary tract symptoms and continence-specific quality of life in children with urination disorders.

MATERIALS AND METHOD

This randomized controlled study included 99 children aged 8-14 with urination disorders, divided into an intervention group (n = 50) and a control group (n = 49). The intervention group received mobile application based urotherapy, while the control group received face-to-face education. Data included Urination Disorders' Symptom Score, Pediatric Incontinence Quality of Life Scale, and bladder diaries.

RESULTS

There were no statistically significant differences between the intervention and control groups in terms of symptoms of urinary disorders, number of urinary incontinence episodes, and continence-specific quality of life levels (p > 0.05). The UDSS and PinQ scores of the children in both groups declined after the intervention (p < 0.05).

CONCLUSION

This study showed that urotherapy education, regardless of the method (mobile application-assisted or face-to-face, alleviated lower urinary tract symptoms and improved continence-specific quality of life in children with urination disorders. However, no statistically significant difference was found between the intervention and control groups in terms of outcomes. Therefore, we recommend that pediatric nurses consider using mobile applications as a flexible and accessible alternative to face-to-face urotherapy education for children with urination disorders, particularly when face-to-face sessions are not feasible.

PRACTICE IMPLICATIONS

Mobile applications can be effective alternatives to face-to-face urotherapy education in pediatric care.

Understanding the impact of developmental coordination disorder on Belgian children and families: A national survey study

BACKGROUND

Developmental Coordination Disorder (DCD) is an under-recognized and often trivialized neurodevelopmental condition impacting five to six percent of children. This study aimed to map the impact of DCD on children and their families in Belgium.

METHODS

The Australian 'Impact for DCD' questionnaire was translated and adapted to suit the Belgian context. Parents of 4-to-18-year-old children living in Belgium with movement difficulties consistent with DCD were invited to complete the online survey covering diagnosis, activities, school, therapy, and social and emotional impact.

RESULTS

A total of 491 children were included in the analyses. First concerns emerged primarily at home (61.4%) at age 3.3 ± 2.25y, with help sought at age 4.7 ± 2.57y. Formal diagnosis occurred at age 6.9 ± 2.36y, with DCD (76.5%) and/or dyspraxia (38.4%) the most frequently received terms. DCD was generally unknown, especially within school settings. Nearly one in four children (23.2%) repeated a year of school. Reduced sleep quality (50.6%), fatigue after school (76.0%), difficulties with toilet training (47.9%) and speech articulation (52.3%), as well as elevated emotional problems (52.7%) and peer-related issues (46.4%), were prevalent. Most children received therapy (89.2%) but 59.1% of parents did not feel adequately supported to assist their child. Moreover, 37.5% of parents regularly took time off work to facilitate their child's therapy attendance, while 49.1% had reduced their working hours or were contemplating doing so (16.7%). Parents expressed concerns about their child's future and well-being, with a prominent plea for guidance on supporting their child and increased awareness. Parents reported important strengths in their children, including empathy, creativity, cognitive abilities, perseverance, and good social and/or language skills.

CONCLUSIONS

These results highlight the significant impact of DCD from parents' perspectives. The next step is to explore ways to empower and support parents, raise awareness, and collaborate with policymakers to address these challenges.

Exploring dysfunctional voiding in girls: a comprehensive literature review of assessment and management strategies

Dysfunctional voiding (DV) is a multifactorial functional problem that refers to dysfunction during voiding. DV is clinically important because it increases the risk of urinary tract infections, mostly due to incomplete bladder emptying, and unfavorably affects renal function. Additionally, a child with DV may experience storage symptoms such as frequency and wetting, which can significantly impact the child's quality of life. There is also a correlation between DV with bowel dysfunction and behavioral disorders. Girls with external urethral meatus anomalies, like hypospadias and/or meatal web, are more prone to complications related to DV. Therefore, girls exhibiting DV symptoms should also be evaluated for meatus anomalies. These patients often contract their external urethral sphincter and pelvic floor musculature, leading to voiding problems. Successful treatment involves applying appropriate diagnostic approaches. In girls with DV, urotherapy and biofeedback are considered gold standard modalities for retraining pelvic floor muscle function synchronously and properly. Although new emerging techniques such as stem cell therapy could improve urinary incontinence in adults and animal models with damaged external urethral sphincters, there is currently a lack of evidence regarding its therapeutic potential for children with DV.

Characteristics of Children Successfully Treated for Daytime Urinary Incontinence

OBJECTIVE

A stepwise approach is recommended for the treatment of daytime urinary incontinence, with standard urotherapy as the first-line treatment, followed by pharmacological treatment when standard urotherapy is unsuccessful. This study was aimed at characterizing and comparing children with an overactive bladder and daytime urinary incontinence who became continent solely on standard urotherapy and those who achieved continence on a combination of standard urotherapy and pharmacological treatment.

METHODS

This retrospective study included 221 patients with complete continence during the day.

RESULTS

Of these patients, 104 (47%) were successfully treated with standard urotherapy, and 117 (53%) required pharmacological treatment. Children who achieved continence on a combination of standard urotherapy and pharmacological treatment had significantly more baseline incontinence episodes during the daytime (p = 0.001) and lower voided volumes (voided volume/estimated bladder capacity: 37 and 42 mL respectively, p = 0.0085) compared with children who were treated with standard urotherapy only. Half the patients underwent an initial screening, including the use of a bladder diary, without the need for time-consuming and complex urotherapy.

CONCLUSIONS

Most children achieved daytime continence solely through standard urotherapy. Additionally, half of the patients achieved continence at the initial screening, including the use of the bladder diary. Children requiring additional pharmacological treatment to achieve continence have more severely overactive bladders.

Sensory processing in children with functional daytime urinary incontinence: A comparative study with autism spectrum disorder

BACKGROUND

Functional daytime urinary incontinence (DUI) is a frequently occurring condition among children. The etiology of DUI is multifactorial, involving genetic, biological, and psychosocial factors. Autism Spectrum Disorder (ASD) seems related to DUI, as children with ASD have a higher risk of developing DUI. Sensory processing issues are prevalent in children with ASD and may contribute to DUI.

OBJECTIVE

This study aims to elucidate the role of sensory processing issues in children with functional daytime urinary incontinence in relation to ASD.

METHODS

A cross-sectional study was conducted, including parents of children aged 6-12 years old, categorized into four groups: healthy children, children with DUI-only, children with ASD-only, and children with both DUI and ASD. Parents completed the Dutch version of the Short Sensory Profile (SSP-NL) to compare sensory processing between groups.

RESULTS

A total of 225 eligible children participated in this study, with 75 otherwise healthy children, 58 children with DUI-only, 49 with ASD-only, and 43 children with DUI and ASD. Children with DUI-only scored significantly lower compared to their healthy peers in the SSP-NL domains of 'Low energy/weak' and the quadrant 'Low registration', indicating sensory under-responsivity and potential limitations in multisensory processing. Children diagnosed with ASD had the most sensory processing issues, independent of their DUI status.

CONCLUSION

Our study suggests that children with DUI may experience more sensory processing issues than their healthy peers. A better understanding of these issues associated with incontinence may improve urotherapy by taking into account children's sensory challenges and by teaching them adaptive behavior.

Prevalence of Urinary Incontinence and Its Association With Neurodevelopmental Disorders Among Children in Japan

AIM

To investigate urinary incontinence prevalence and its association with neurodevelopmental disorders among children in Japan.

METHODS

A web-based survey was conducted on children aged 5-15 years in Japan. Information on daytime and nocturnal incontinence and neurodevelopmental disorders, such as attention deficit hyperactivity disorder, autism spectrum disorder, and intellectual disability, was collected.

RESULTS

Responses from 5186 questionnaires (2619 boys, 2517 girls) were evaluated. In total, 505 children had neurodevelopmental disorders. Furthermore, 148 children had daytime urinary incontinence. The incidence of daytime urinary incontinence did not differ significantly according to sex. Daytime urinary incontinence was associated with neurodevelopmental disorders in 33.1% of children. Moreover, 220 children had nocturnal enuresis. Boys had a significantly higher prevalence of nocturnal enuresis than girls in the overall cohort and early elementary school age group. Nocturnal enuresis was associated with neurodevelopmental disorders in 29.1% of children. Children with daytime urinary incontinence or nocturnal enuresis had a significantly higher incidence of neurodevelopmental disorders.

CONCLUSIONS

The prevalence of concomitant daytime and nocturnal urinary incontinence and neurodevelopmental disorders in children is significant.

SunCloud: A mobile application for children with urinary incontinence

BACKGROUND AND AIM

Urinary incontinence is an important problem with potentially adverse effects on the psychological, social and personality development of children. Today, with the developing technology, the use of information and communication technologies such as wearable technology, message services and mobile applications has become widespread in solving health problems. In this study, it was aimed to develop a mobile application that facilitates the follow-up of children, increases their compliance with treatment and ensures the continuity of communication between them and the health worker. The methodology, design and preliminary evaluation results of the mobile application are presented in this article.

METHODS

During the development process of the mobile application, the content was first created in line with the literature review. After the content was determined, the interface design was made on MS Word and Photoshop software. At this stage, six experts were consulted for content and design. The mobile application, finalised in design, was implemented on Android and IOS platforms. After the mobile application was created, 10 children and their families were interviewed.

RESULTS

Nine of the families (90%) found the developed mobile application useful and easy to use. Families' suggestions to improve the mobile application were to make it more interesting for children and to enrich its content.

CONCLUSION

In line with the feedback, the mobile application was updated and finalised. Preliminary results are promising that the developed mobile application can be used as an aid to treatment in children with urinary incontinence. With the mobile application developed, urotherapy training was not limited to the time they visited the hospital. This suggests that the mobile application can eliminate the problem of partial or omitted treatment. This research has shown that leveraging technology can be a good option to increase treatment success.

CLINICAL TRIAL NUMBER

NCT05815940.

Boys with bladder dysfunction may have posterior urethral valves - A simple framework to aid investigation

BACKGROUND

Bladder dysfunction (BD) is a common presenting complaint to paediatric urology outpatient clinics, accounting for up to 47% of referrals and affecting one in ten children of toilet training age. Boys with bladder dysfunction have been shown to have higher rates of posterior urethral valves (PUV) however when to consider cystourethroscopy in this group is unclear.

OBJECTIVE

Our primary aim was to assess the likelihood of detecting PUV in a cohort of boys of toilet training age presenting to a paediatric urologist with symptoms of bladder dysfunction. Our secondary aim was to assess whether resection of PUV was associated with improved clinical outcome.

STUDY DESIGN

Retrospective review of male patients aged 4-16 (January 2007 to December 2023), referred to paediatric urologist in an Australian outpatient clinic with BD undergoing cystourethroscopy. Those with known renal tract or spinal pathology were excluded. Patients were divided into four groups according to their symptoms/investigation results. Patients were followed up to assess improvement in symptoms following resection of PUV.

RESULTS

247 boys were included in this study with a median age of 8.1 years. 81/247 (32.8%) had PUV on cystourethroscopy. The highest incidence of PUV 13/25 (52%) was in those patients with BD, haematuria or UTI and ultrasound (USS) changes. There was no difference in outcome improvement in those who underwent resection of PUV when compared with those without PUV.

DISCUSSION

Our study findings concur with results from previous literature identifying higher rates of PUV in older boys with bladder dysfunction. We have utilised straightforward clinical criteria to provide a targeted framework for screening with cystourethroscopy. There was no difference in outcomes when PUV was resected, compared to those without PUV. Limitations of this study include the retrospective nature, possible selection and reporting biases.

CONCLUSION

The likelihood of detecting PUV in our cohort of boys aged 4-16 with bladder dysfunction was 32.8%. The four groups provide clinicians with guidance on who may benefit from cystoscopy. This study provides future scope for a prospective interventional study of PUV in boys with BD.

Immediate and continued results of parasacral transcutaneous electrical nerve stimulation in paediatric patients with overactive bladders

INTRODUCTION

Among the conditions underlying childhood daytime incontinence the most frequent is overactive bladder (OAB). Parasacral transcutaneous electrical nerve stimulation (parasacral TENS) is a promising therapy for OAB treatment in children; however, there is no standard treatment protocol.

OBJECTIVE

To evaluate the immediate and continued effects of parasacral TENS monotherapy in children with OAB.

STUDY DESIGN

57 children at mean age 10.8 years diagnosed with OAB at a single centre were prospectively enrolled from 2013 to 2018. The inclusion criterion was typical OAB symptoms. The treatment results were evaluated based on objective measurements from bladder diaries, 48 h frequency/volume (48 h F/V) charts, and uroflowmetry. The parasacral TENS treatment lasted for 4 months, twice daily, with 1 h sessions. Results were evaluated at three time points: 2 months of therapy, 4 months (end of active therapy), and 10 months (6 months after cessation of therapy).

RESULTS

After 4 months of parasacral TENS treatment, the number of days with daytime incontinence decreased from 7.23 to 3.94/14 days (p < 0.05), nocturnal enuresis decreased from 6.81 to 3.77/14 days (p < 0.05), and urgency episodes from 7.36 to 3.58 in 14 days (p < 0.05). Treatment effects remained stable 6 months after therapy cessation regarding days with daytime incontinence (from 3.94 [immediately after treatment] to 3.28 in 14 days [6 months after treatment cessation]), nocturnal enuresis (from 3.77 to 2.91 in 14 days), and urgency episodes (from 3.58 to 2.12 in 14 days) (p < 0.05). Complete response after 6 months of therapy was observed in 32% of patients with daytime incontinence, 35% with nocturnal enuresis, and 50% with urgency episodes.

DISCUSSION

A recent systematic review of parasacral TENS in children with OAB included only two studies with a follow up of 6 months or longer after treatment cessation; therefore, little is known about the continued effects of parasacral TENS. High rates of complete symptom remission were reported in studies where only subjective symptoms were evaluated. Results of our study reveal that the positive effect of treatment persist. The strengths of the present study include its prospective design, large sample size, and uniform standard urotherapy performed prior to TENS.

CONCLUSIONS

The use of parasacral TENS in children with OAB is effective and results in a significant reduction in daytime incontinence, nocturnal enuresis, and urgency episodes. A longer treatment duration of 4 months leads to more improvement and the effects remain stable 6 months after treatment cessation.

An integrated and flexible ultrasonic device for continuous bladder volume monitoring

Bladder volume measurement is critical for early detection and management of lower urinary tract dysfunctions. Current gold standard is invasive, and alternative technologies either require trained personnel or do not offer medical grade information. Here, we report an integrated wearable ultrasonic bladder volume monitoring device for accurate and autonomous continuous monitoring of the bladder volume. The device incorporates flexible and air-backed ultrasonic transducers and miniaturized control electronics with wireless data transmission capability. We demonstrate the real-life application of the device on healthy volunteers with various bladder shapes and sizes with high accuracy. Apart from the lower urinary tract dysfunctions, the proposed technology could also be adapted for various wearable ultrasonic applications.

Prevalence, risk factors, psychological effects of children and adolescents with lower urinary tract symptoms: a large population-based study

Background

Lower urinary tract symptoms (LUTS) are clinically frequent and seriously affect the psychological and mental health of children and adolescents. However, most studies on LUTS and its influence on the psychological behavior and mental health have focused on adults. This study aimed to investigate LUTS prevalence and associated factors in children and adolescents and explore its impact on psychological behavior.

Materials and methods

From October 2019 to November 2021, an epidemiological LUTS survey was carried out on 6,077 children aged 6-15 years old in 12 primary and secondary schools in China by using anonymous questionnaires.

Results

A total of 5,500 valid questionnaires were collected, and the total prevalence of four representative symptoms of LUTS: urgency, frequency, daytime urinary incontinence, and nocturnal enuresis was 19.46%, 14.55%, 9.75%, and 8.4%, respectively. The prevalence decreased with age, which decreased rapidly in children aged 6-12 years old. The incidence of LUTS in those who did not continue to use disposable diapers (DD) and began to perform elimination communication (EC) after the age of 1 was significantly higher than that of those who stopped using DD and started EC before 1 year of age (P < 0.05). There were significant differences in the occurrence of LUTS without toiled training (TT) (P < 0.05). The prevalence of LUTS in males was significantly higher than in females (P < 0.05). LUTS in children and adolescents with constipation was significantly higher compared to those without constipation (P < 0.05). The detection rate of abnormal psychological behavior in the LUTS group was 44.6%, which was significantly higher than that in the no LUTS group (21.4%, P < 0.05). The scores of emotional symptoms, conduct problems, hyperactivity, and peer communication problems were significantly higher in the LUTS group than the control group.

Conclusions

In Mainland China, the prevalence of LUTS in children and adolescents is high. Continued use of DD after 1 year of age, history of urinary tract infection, lack of TT, and constipation were risk factors for LUTS. EC before 1 year of age is a protective factor for LUTS. The prevalence of psychological behavioral abnormalities is high in children and adolescents with LUTS, which needs to be more concerned.

The effect of biofeedback on nonneurological dysfunctional voiding in children: A meta-analysis and systematic review

OBJECTIVE

This study was conducted to investigate the effect of biofeedback (BF) on the rehabilitation of children with nonneurological dysfunctional voiding (NDV).

METHODS

RCTs were retrieved from various databases (published from inception to February 29, 2024). The effects of the BF and non-BF treatments were compared. A random-effects model was used to evaluate the combined data.

RESULTS

Meta-analysis revealed that BF increased the maximum urinary flow rate (SMD = 3.78, 95% CI 1.33∼6.22), improved urination time (SMD = 5.88, 95% CI 3.75∼8.01), and reduced the postvoid residual (SMD = -19.18, 95% CI -27.03∼-11.33) and urinary tract infection incidence (RR = 0.43, 95% CI 0.21∼0.87). Electromyogram activity (RR = 0.46, 95% CI 0.25∼0.84) and abnormal urination patterns (RR = 0.51, 95% CI 0.35∼0.74) improved, with effects persisting for more than 1 year. However, the effect of BF on the mean urinary flow rate in children with NDV was significant only after 1 year of follow-up (SMD = 1.90, 95% CI 0.87∼2.92).

CONCLUSION

Existing evidence indicates that BF can enhance urinary parameters and patterns in children with NDV. However, its effectiveness in addressing constipation, daytime urinary incontinence, and nocturnal urinary incontinence is not substantial. High-quality randomized controlled trials can offer additional insights.

Giggle incontinence: a scoping review

Giggle incontinence (GI) is poorly described, defined, and understood. It is considered a bladder storage disorder in which laughter causes an uncontrollable episode of urinary incontinence that cannot be stopped until the bladder is completely emptied. It has been confused with stress urinary incontinence and overactive bladder. A thorough analysis of 26 articles on the subject of "giggle incontinence" and associated terms was performed, including all articles since the phrase first appeared. To date, 351 GI cases have been reported. It occurs mainly in women (69.5%) at 5 years of age, with a prevalence ranging from 8.4 to 16.2 years (average age of 12.4 years), and some cases have a family history of the disease (13-16.7%). This review discusses the historical background, current understanding, and challenges related to GI. It primarily affects females after the age of 5 years, causing complete bladder emptying during uncontrollable laughter. The exact cause is unknown, but hypotheses suggest involvement of the central nervous system. Diagnosis relies on clinical history, physical tests, and urine frequency evaluation. Management involves urotherapy techniques, biofeedback, and methylphenidate. Understanding GI will aid in developing more effective management techniques. IMPACT: Highlights limited awareness among healthcare professionals about giggle incontinence as a distinct condition, emphasizing the need for standardized diagnostic criteria and assessment tools. Addresses insufficient understanding of the underlying mechanisms and contributing factors, providing valuable insights for better diagnosis and treatment. Emphasizes the importance of patient education and support, calling for improved resources and counseling. Urges further research and evidence-based guidelines to enhance treatment strategies.

Efficacy of Intravesical Botulinum Toxin A Injection in the Treatment of Refractory Overactive Bladder in Children

This study aimed to evaluate the efficacy of intravesical botulinum toxin A (BoNT-A) injections for the treatment of pediatric overactive bladder (OAB) by exploring the differential treatment outcomes in children with different OAB etiologies and those who received additional intrasphincteric BoNT-A injections. We performed a retrospective review of all pediatric patients who received intravesical BoNT-A injections between January 2002 and December 2021. All patients underwent a urodynamic study at baseline and three months after BoNT-A administration. A Global Response Assessment (GRA) score of ≥2 at three months after BoNT-A injection was defined as successful treatment. Fifteen pediatric patients (median age, 11 years), including six boys and nine girls, were enrolled in the study. A statistically significant decrease in detrusor pressure from baseline to three months postoperatively was observed. Thirteen (86.7%) patients reported successful results (GRA ≥ 2). The cause of OAB and additional intrasphincteric BoNT-A injections did not affect the improvement in urodynamic parameters and treatment success. The study demonstrated that intravesical BoNT-A injection is effective and safe for the treatment of neurogenic and non-neurogenic OAB in children refractory to conventional therapies. Additionally, intrasphincteric BoNT-A injections do not provide additional benefits in the treatment of pediatric OAB.

Functional constipation as a risk factor for pyelonephritis and recurrent urinary tract infection in children

AIM

Acute pyelonephritis is one of the most common bacterial infections in childhood. This potentially serious condition can lead to renal scarring, loss of kidney function and hypertension. The aim of this study was to identify risk factors associated with pyelonephritis in children without kidney or urinary tract abnormalities.

METHODS

Medical records of children aged 4-18 diagnosed with 1st time pyelonephritis from 2016 to 2021 were retrospectively analysed. Children with abnormal kidney ultrasound were excluded. In addition to demographic data, information on bladder and bowel function was extracted together with habits of fluid intake.

RESULTS

A total of 105 patients were diagnosed with 1st time pyelonephritis. Of these, 47% were diagnosed with constipation according to the Rome IV criteria within a mean follow-up period of 167 days after their pyelonephritis, which is markedly higher than the estimated prevalence of constipation in the background population. Constipation was positively associated with recurrent urinary tract infection (p = 0.01).

CONCLUSION

Constipation is associated with pyelonephritis and recurrent urinary tract infection in children (primarily girls) 4-18 years of age without evident kidney or urinary tract abnormalities. We recommend systematic evaluation of bowel and bladder function after 1st time pyelonephritis in all children >4 years.

Intravesical botulinum-A toxin in children with refractory non-neurogenic overactive bladder

INTRODUCTION

Overactive bladder (OAB) with urinary incontinence poses a potentially significant impact on daily activities and quality of life. OAB can be unresponsive to specific urotherapy and antispasmodic medication. Due to its successful outcomes in the treatment of neurogenic bladder, intravesical botulinum-A toxin (BTX-A) became a possible solution for children refractory to treatment.

OBJECTIVE

To analyse the outcomes of intravesical BTX-A injections on bladder volume and incontinence in children with refractory OAB.

STUDY DESIGN

The charts of children diagnosed with refractory non-neurogenic OAB who underwent BTX-A treatment in our centre since 2011 were retrospectively analysed. The functional bladder volume (FBV) is expressed as a percentage of the expected bladder capacity (EBC) for age. Dependent variables were compared using the Wilcoxon Signed Rank test. A multivariate logistic regression was used to identify predictors of the response on urinary incontinence.

RESULTS

Fifty children (41 boys) with a median age of 9.9 years were included. In the short term, there was a significant increase in FBV after initial BTX-A treatment from a median of 52.9%-70% (p = 0.000). In the short (<6 months) and long term (6-12 months) 72% and 46% showed improvement of continence, respectively. Male gender and small baseline FBV predict a positive outcome on continence in the long term. The most prevalent complications were urinary tract infections occurring in five cases (10%).

DISCUSSION

Although BTX-A injections serve as an effective therapy to increase bladder volume in non-neurogenic OAB children, the outcomes on urinary incontinence are highly variable. This may be a consequence of the multifactorial aspects of this condition. BTX-A will enable children to inhibit their bladder urgency. The effectiveness of post-BTX-A urotherapy training will therefore most probably be higher. We believe that BTX-A injections should be reserved for children refractory to both specific urotherapy and medication. An appropriate population seems to be children with severe OAB symptoms, confirmed detrusor overactivity in urodynamic study and reduced bladder volume.

CONCLUSION

In refractory OAB children, BTX-A injections are safe and effective in enlarging bladder volume and reducing OAB symptoms, particularly in the first six months after injection.

Toileting Resistance Among Preschool-Age Children with and Without Autism Spectrum Disorder

OBJECTIVE

Children with autism spectrum disorder (ASD) may achieve continence later than other children. Little is known about factors associated with toileting resistance in children with ASD and other developmental delays/disabilities (DD). We sought to describe toileting resistance in children with ASD and DD and those from the general population (POP) and identify factors associated with toileting resistance in children with ASD and DD.

METHOD

Families and children aged 24 to 68 months were enrolled in the Study to Explore Early Development, a multisite case-control study on ASD. Children with ASD (N = 743) and DD (N = 766) and those from the POP (N = 693) who were 48 months or older were included in this study. Parents reported toileting resistance, gastrointestinal issues, behavior problems, and ASD symptoms in their children. Children completed an in-person evaluation to determine ASD status and developmental level.

RESULTS

Toileting resistance was more common among children with ASD (49.1%) than children with DD (23.6%) and those from the POP (8.0%). Diarrhea and deficits in social awareness were significantly associated with toileting resistance in children with ASD and DD. Constipation, expressive language delays, and low social motivation were significantly associated with toileting resistance only in children with ASD; very low visual reception skills and oppositional behaviors were significantly associated with toileting resistance in only children with DD (all p ≤ 0.05).

CONCLUSION

Evaluating gastrointestinal issues, developmental delays, and social deficits before toileting training may help identify children with atypical development who are likely to present with toileting resistance. These evaluations can be incorporated into health supervision visits.

Comparison and characteristics of children successfully treated for daytime urinary incontinence

INTRODUCTION

Daytime urinary incontinence (DUI) is defined as an involuntary leakage of urine during daytime in children 5 years or older. It is a common disorder in the pediatric population most often caused by an overactive bladder (OAB). A stepwise approach is recommended in the treatment of DUI, with standard urotherapy (SU) being first line treatment followed by pharmacological treatment when SU is unsuccessful. To our knowledge few studies have compared patients achieving continence solely on urotherapy with patients achieving continence on a combination of urotherapy and pharmacological treatment in the pediatric population.

OBJECTIVE

The aim of the study was to characterize and compare children suffering from OAB and DUI who became continent solely on urotherapy with patients achieving continence on a combination of urotherapy and pharmacological treatment.

METHODS

All children successfully treated for DUI from 2015 to 2020 were retrospectively analyzed and compared using data from patient's records, 48-h flow-volume charts, and uroflowmetry analysis.

RESULTS

180 children were successfully treated for DUI. Of these 23 (13%) had bowel dysfunction, 94 (52%) were successfully treated with standard urotherapy (SU) and 64 (35%) needed pharmacological treatment. Children who achieved continence on a combination of SU and pharmacological treatment had a significantly higher baseline voiding frequency (7.6 and 6.5 respectively, p=0.007) and more baseline incontinence episodes during daytime when compared to children who became dry solely on urotherapy (2.2 and 1.1 respectively, p < 0.001). Both groups had a similar baseline age (p=0.96) and received a similar duration of standard urotherapy prior to the eventual pharmacological treatment (p = 0.73).

DISCUSSION

Most children achieved daytime continence solely on standard urotherapy. We found that children requiring additional pharmacological treatment to achieve continence suffer from a more severe overactive bladder. As such it could be speculated that children with high voiding frequencies and multiple daily incontinence episodes may benefit from adding anticholinergics to SU earlier during the course of treatment, than what is recommended by the International Children's Continence Society (ICCS) today. However prospective interventional studies are needed for safe conclusions.

CONCLUSION

Our comparison showed that children requiring a combination of SU and pharmacological treatment to achieve continence, had a significantly higher baseline voiding frequency and more baseline incontinence episodes when compared to children requiring only SU to achieve continence.

Transcutaneous electrical nerve stimulation as add-on therapy in children receiving anticholinergics and/or mirabegron for refractory daytime urinary incontinence: A retrospective cohort study

AIMS

To investigate if children with daytime urinary incontinence (DUI) and overactive bladder (OAB) refractory to standard urotherapy and medicinal treatment, would experience improvement in symptoms after add-on treatment with transcutaneous electrical nerve stimulation (TENS).

METHODS

Children were retrospectively enrolled from tertiary referral centers at Aarhus and Aalborg University Hospitals. All data were retrieved from the patients' journals. All children were prescribed TENS as an add-on treatment to the highest-tolerable dose of medicinal treatment in a standardized regime of 2 h a day for around 3 months. Primary endpoints were the number of wet days per week (WDPW) and incontinence episodes per day. Effect of treatment was defined as greater or equal to 50% reduction in the frequency of DUI episodes. Secondary endpoints were to establish predictive factors for the effect of treatment using logistic regression.

RESULTS

Seventy-six children diagnosed with DUI and OAB refractory to treatment with standard urotherapy and pharmacological treatment, at the age of 5-16 years were included from February 2017 to February 2020. A reduction in WDPW (from 6.31 [5.86-6.61] to 4.27 [3.45-4.90], p < 0.05) and incontinence episodes per day (from 2.45 [1.98-2.91] to 1.43 [1.07-1.80], p < 0.05) was observed. Twelve patients became completely dry. At 6 months follow-up, seven of the 12 complete responders had relapsed while five remained dry. A history of constipation before TENS was a predictor of poor treatment response (p = 0.016).

CONCLUSIONS

TENS as add-on to anticholinergic treatment seems effective in a number of children with treatment-refractory DUI.

The evaluation of urinary incontinence in secondary school children and risk factors: An epidemiological study

AIM

Urinary incontinence is an important problem that can arise due to neurogenic or functional reasons and negatively affect the psychological, social and personality development of children. This study was conducted on secondary school students to determine the prevalence and risk factors of urinary incontinence at night and/or in the daytime.

METHODS

The study universe included all secondary school students attending public elementary schools in the city centre of Eskişehir (N = 34 000). Ethics Committee and Provincial Directorate of National Education approvals were obtained before conducting the study. A data collection form prepared by the researchers and a consent form were delivered in a sealed envelope to the parents via the students. The study data were collected over the period 09 May 2018-30 May 2018. A total of 6957 questionnaires that were fully completed among the 7370 surveys were taken into consideration. The statistical analysis was carried out using the SPSS software package.

RESULTS

The number of children found to have urinary incontinence was 215 (3.1%). It was seen that 33 children had urinary incontinence only in the daytime, 61 children experienced it both at night and during the day and 121 children at night. It was observed that 56% of the children suffering from urinary incontinence had not applied to any health facility for treatment prior to the study. It was found that among the risk factors for urinary incontinence were young age, late start of toilet training and presence of a family history of urinary incontinence.

CONCLUSIONS

Children with urinary incontinence and their families need medical information and support to reach the root of the problem and seek solutions. Accompanying pathologies in detected cases can be determined in the early period by means of school screenings, and medical evaluation and support can prevent adverse effects on children's psychosocial and personality development.

Urgency in children with overactive bladder or voiding postponement: What's the difference?

INTRODUCTION

Overactive bladder (OAB) and voiding postponement (VP) can share the same symptom of urgency, but with different pathophysiology, including the cerebral interpretation of bladder filling. The objective of the present study was to compare the clinical, psychological and sociodemographic features of children with urgency for OAB with those who presented urgency for VP (UrVP).

METHODS

A retrospective cross-sectional study with an analytical component was conducted with patients of 5-14 years of age with urinary urgency between January, 2014, and January, 2019. Urinary symptoms were evaluated using the Dysfunctional Voiding Scoring System (DVSS) questionnaire, constipation using the Rome IV criteria and psychological symptoms using the Strengths and Difficulties Questionnaire (SDQ). All the patients had bell-shaped or tower-shaped curves at uroflowmetry and no significant post-void residual volume at ultrasonography. Patients were classified as having OAB or UrVP depending on whether they voided >3 or ≤3 times/day, respectively.

RESULTS

Median age of the 101 children/adolescents included was 9 years, with no significant difference between the groups. The prevalence of OAB was 60.4%. Girls constituted 57.4% of the sample but 67.5% of the postponement group, although no independent association was found between sex and diagnosis. The prevalence of constipation was 75.2%, with no difference between the groups. The children with OAB had higher behavioral hyperactivity scores and more intense externalizing symptoms, although there was no significant difference between the groups for the SDQ total difficulties score. In the multivariate analysis, the independent clinical factors associated with a diagnosis of OAB were behavioral hyperactivity (OR = 5.134), urge incontinence (OR = 4.694) and MVV/EBC (%) (OR = 0.983).

CONCLUSION

More behavioral problems, particularly hyperactivity, were found in children with OAB compared to those with UrVP. No statistically significant difference was found between the groups evaluated insofar as their sociodemographic characteristics are concerned. Furthermore, as expected, there was a strong association between the symptom of urge incontinence and lower MVV/EBC in the children and adolescents with OAB compared to those with voiding postponement.

Parents' expectations of the outpatient care for daytime urinary incontinence in children: A qualitative study

INTRODUCTION

Daytime urinary incontinence (UI) can have an enormous impact on a child's life, lowering both self-esteem and quality of life. Although most children start therapy after their first visit to our outpatient clinic, no studies have reported on parents' or patients' expectations of care for daytime UI in this setting.

OBJECTIVE

We aimed to explore the expectations of the parents of children referred to an outpatient clinic for daytime UI.

STUDY DESIGN

This was a qualitative study that involved performing semi-structured interviews with the parents of children who had been referred for daytime UI (with or without nocturnal enuresis). Interviews took place between July 2018 and October 2018 and continued until saturation was reached. The results were transcribed verbatim and analyzed according to Giorgi's strategy of phenomenological data analysis.

RESULTS

Nine parents of children, aged 5-12 years old, were interviewed, revealing "(Experienced) Health," Self-management," and "Social Impact" as the main themes that influenced parental expectations. All parents wanted to know if there was a medical explanation for UI, some were satisfied when diagnostics revealed no underlying condition, and others wanted treatment. Parents expressed no preferences about diagnostics or the content and duration of treatment, but they hoped that any previously attempted ineffective steps would not be repeated. Some parents defined treatment success as their child becoming completely dry, but most stated that learning coping strategies was more important.

DISCUSSION

This is the first study to explore the expectations of parents when attending outpatient care for children with daytime UI. We employed a strong theoretical framework with a clear interview guide. The main limitations are that we only interviewed parents and that this was a qualitative study, precluding the drawing of firm conclusions. Nevertheless, our results point to the need for quantitative evaluation.

CONCLUSION

Expectations seem to be influenced by (experienced) health, efforts at self-management, and the social impact of UI, making it critical that these themes are addressed. It was interesting to note that parents do not always attend outpatient departments with the goal of completely resolving daytime UI. Instead, some only want to know if there is an underlying medical condition or want to reduce the social impact by learning coping mechanisms. Excluding underlying medical conditions may therefore stimulate acceptance of watchful waiting without the need to start treatment.

An Examination of the Relationship between Urinary Neurotrophin Concentrations and Transcutaneous Electrical Nerve Stimulation (TENS) Used in Pediatric Overactive Bladder Therapy

This article aims to explore changes in urinary concentrations of selected neurotrophins in the course of TENS therapy in children with overactive bladder (OAB). A two-group open-label prospective study was conducted. The intervention group comprised 30 children aged between 5 and 12 years old with OAB refractory to conservative therapy. They received 12 weeks of TENS therapy in a home setting. The urinary neurotrophins, NGF, BDNF, NT3, NT4, were measured by ELISA at baseline and at the end of the TENS therapy. Total urinary neurotrophins levels were standardized to mg of creatinine (Cr). We compared the results with the reference group of 30 participants with no symptoms of bladder overactivity. The results revealed that children with OAB both before and after TENS therapy had higher NGF, BDNF, and NT4 concentrations in total and after normalization to Cr than the reference group in contrast to NT3. The response to the therapy expressed as a decrease of urinary neurotrophins after TENS depended on the age and the presenting symptoms. In conclusion, children older than 8 years of age with complaints of daytime incontinence responded better to TENS.

Interrater reliability of bladder ultrasound measurements in children

INTRODUCTION

Bladder ultrasound is becoming pivotal in the management and treatment of lower urinary tract dysfunction. There is a paucity of data regarding intra-observer and interobserver reliability of bladder ultrasound, especially in children. A previous study assessed interobserver agreement for both the postvoid residual volume and measurement of the bladder dimensions in adults showing excellent agreement.

OBJECTIVE

To examine the interobserver and intra-observer reliability of bladder wall thickness, bladder urinary and postvoid residual urinary volume using ultrasound evaluated by paediatricians having different training levels.

STUDY DESIGN

Four sonographers, 3 pediatric trainees and one experienced pediatric urologist measured the full bladder volume, the voiding residual volume, and the bladder wall thickness. Each sonographer made 3 measurements of each parameter. We assessed the interobserver and intra-observer variability by using intraclass correlations (ICCs). ICCs were calculated and tested with a significance level of 5%. The interrater ICC was calculated from the mean of the three measurements of each variable (full bladder volume, postvoid residual, bladder wall thickness). ICC ≥0.75 was considered excellent. Bland-Altman plots were also used to assess the interobserver agreement.

RESULTS

Sixty children were recruited (7.3 ± 1.1 years). The interobserver ICCs for bladder volume and voiding residual volume were 0.91 (confidence interval 0.85-0.95) for both. The interobserver ICCs for the bladder wall thickness was satisfactory 0.43, with a minimum detectable difference of 2 mm. The observed values for intra-observer analysis showed an excellent (ICC ≥ 0.90) agreement between the three measurements performed by each one of the sonographers. Bland-Altman plots showed that the bias (mean difference) was -0.35 and the limits of agreement were -3.43 and 2.73 for the bladder wall thickness measurements (Figure).

DISCUSSION

The interobserver reliability for both the postvoid residual volume and full bladder volume were excellent even in operators with different levels of training, pointing out the role of bladder ultrasound in the routine clinical practice. Weaker agreement was found for the bladder wall thickness measurement. The intra-observer agreement was excellent for all the measurements.

CONCLUSION

These results showed a good reliability of urinary bladder ultrasound in children aged 7.3 ± 1.1 years as far as bladder volume measurement is concerned. Given the variability of bladder wall thickness, a standardized methodology is desirable to increase its reliability.

Role of videourodynamic study in precision diagnosis and treatment for lower urinary tract dysfunction

Lower urinary tract symptoms (LUTS) are complicated and cannot be used alone to diagnose lower urinary tract dysfunctions (LUTDs) and guide treatment. Patients with bladder outlet obstruction (BOO), impaired detrusor contractility, and hypersensitive bladder might present with voiding predominant symptoms, whereas patients with detrusor overactivity (DO), dysfunctional voiding, or BOO might also present with storage symptoms. To clearly identify the pathophysiology of LUTD, a comprehensive urodynamic study (UDS) including pressure flow and image during the storage and emptying phases, naming videourodynamic study (VUDS), is necessary. This study is especially mandatory in the diagnosis of (1) male LUTS refractory to medical treatment for benign prostatic hyperplasia, (2) female voiding dysfunction and urinary retention, (3) diagnosis of overactive bladder syndrome refractory to first-line medication, (4) management of female stress urinary incontinence and postoperative LUTS, (5) diagnosis and management of neurogenic LUTD, (6) pediatric urinary incontinence and enuresis, (7) geriatric urinary incontinence, and (8) recurrent bacterial cystitis. Although VUDS should not be used as a screening test for any LUTS, it should be considered when the initial management cannot relieve LUTS, or when invasive surgical procedure is planning to undertake for patients with refractory LUTS. VUDS should be recommended as the second-line investigation when the initial diagnosis and treatment based on the symptoms alone or noninvasive tests fail to improve LUTS.