The genetic basis of inherited primary nocturnal enuresis: A UAE study

Treating enuresis in children with neurodevelopmental disorders using bell and pad alarm

OBJECTIVE

There is a high prevalence of enuresis in children with neurodevelopmental disorders, yet research regarding treatment for this group has been neglected. The efficacy of treatment using bell and pad alarm therapy is not well reported especially in children with neurodevelopmental disorders. This study sought to compare the treatment efficacy of practitioner-assisted bell-and-pad enuresis alarm therapy for children with neurodevelopmental disorders and typically developing children.

STUDY DESIGN

This study utilized the data of Apos et al. (2018), a retrospective medical record audit collected from multiple clinical settings across Australia. A total of 2986 patient records (3659 treatment records) were included. The participants were children aged 5-16 years, who were diagnosed with enuresis. Children with a neurodevelopmental disorder (n = 158) had a clinical diagnosis present in the medical history of attention deficit disorder, autism spectrum disorder, or intellectual disability. Children who indicated any of the following comorbidities were excluded: cerebral palsy, brain injury, malformation of the renal tract, previous bladder or renal surgery, spinal cord malformation, spinal cord trauma or tumor, or a neurodegenerative disorder. Treatment success was defined as ≥ 14 dry nights. Relapse was defined as one symptom recurrence per month post-interruption of treatment, as defined by the International Children's Continence Society definitions.

RESULTS

The success rate for children with neurodevelopmental disorders was 62% and typically developing children was 78%. There was no significant difference between the number of treatments received or relapse rates by those children with a neurodevelopmental disorder and typically developing children. The summary figure shows the percentage of children in each group after their first treatment who were successful (success defined as dry for ≥ 14 days), who succeeded (dry for ≥ 14 days) but then relapsed and those who showed no success. The percentage of children with no NDD who were successfully dry after the first treatment was 78%. Children with ID had success after the first treatment of 59%, the lowest of all groups analyzed.

CONCLUSION

The type of alarm therapy reported in this study is effective for treating enuresis in children with neurodevelopmental disorders.

The Genetics of Sleep Disorders in Children: A Narrative Review

Sleep is a universal, highly preserved process, essential for human and animal life, whose complete functions are yet to be unravelled. Familial recurrence is acknowledged for some sleep disorders, but definite data are lacking for many of them. Genetic studies on sleep disorders have progressed from twin and family studies to candidate gene approaches to culminate in genome-wide association studies (GWAS). Several works disclosed that sleep-wake characteristics, in addition to electroencephalographic (EEG) sleep patterns, have a certain degree of heritability. Notwithstanding, it is rare for sleep disorders to be attributed to single gene defects because of the complexity of the brain network/pathways involved. Besides, the advancing insights in epigenetic gene-environment interactions add further complexity to understanding the genetic control of sleep and its disorders. This narrative review explores the current genetic knowledge in sleep disorders in children, following the International Classification of Sleep Disorders-Third Edition (ICSD-3) categorisation.

Comorbidity between enuresis and attention deficit hyperactivity disorder: a case-control study

Background

Although there is a strong association between enuresis and psychopathology, little is known about the prevalence of specific psychiatric disorders. We investigate the prevalence of attention-deficit/hyperactivity disorder (ADHD) in children with enuresis and study the impact on child behavior, self-esteem, and different EEG findings. A total number of one hundred 6 to 12 years old children diagnosed as functional enuresis taken from specialized university setting for enuresis at Mansoura Pediatric Outpatient Clinic, in which they could be subdivided into 2 groups after assessment of attention deficit hyperactivity disorder (ADHD); according to DSM-IV criteria, we also compare them with a third ADHD group taken from Mansoura Psychiatric Outpatient Clinic n = 40 to match the co-morbid “enuresis with ADHD” group. All were subjected to a diagnostic interview conducted and completed with parents and developmental and family history as well, also they subjected to Conner’s parent rating scale-93(CPRS-93), Rosenberg self-esteem assessment scale, and EEG examination.

Results

There was high prevalence of ADHD in our study with about 40% in children with enuresis especially who met the DSM–IV criteria of inattention attending a specialized setting for enuresis at Mansoura Pediatric Outpatient Clinic which is a tertiary setting where the older the children of enuresis, the higher the prevalence of ADHD, also there is a relationship between abnormal epileptiform discharge in EEG finding and enuresis as same as ADHD which became greatly increased in the children who had both disorders who was the most affected group as regard behavioral problems and lowered self-esteem levels.

Conclusions

The strong association between ADHD and enuresis suggests that the presence of enuresis should motivate diagnostic assessment of ADHD especially the inattentive subtype. Abnormal EEG finding in the form of generalized slow and sharp waves may be useful as a predictor for the presence of ADHD in children with enuresis. Also, the co-morbidity increases the negative impact on child behavior and self-esteem.

Rate and risk factors of nocturnal enuresis in school going children

PURPOSE

The purpose is to find out the rate of nocturnal enuresis in school going children (5-12 years) and the risk factors associated with it.

MATERIALS AND METHODS

The parents of children aged between 5 and 12 years studying in two primary schools in Ahmedabad completed a self-administered semi-structured questionnaire comprising of enuresis, sociodemographic profiles, and risk factors. Children with enuresis and those without were compared on demographic characteristics and risk factors using Chi-square and t-test for categorical and quantitative data respectively. The data were analyzed using SPSS version 17.

RESULTS

The response rate was 86.54% as 1904 responses were collected out of 2200. The overall rate of nocturnal enuresis was 6.7% (according to Diagnostic and Statistical Manual of Mental Disorders, 5th Edition definition of nocturnal enuresis). As the age increased, the rate of nocturnal enuresis declined. A positive family history was seen in 36.6% of children with enuresis. Enuresis was found to be more frequently in lower socioeconomic class. It was a neglected problem, only 20.6% of children received some kind of treatment.

CONCLUSION

The rate of nocturnal enuresis was 6.7% in school going children. Strong correlation was found with family history. Although the rate was high, most of the children with enuresis were not treated.

[Comorbid cognitive impairments in children with nocturnal enuresis and their treatment]

AIM

To study comorbid cognitive impairments in children with enuresis and assess the efficacy and safety of cerebrolysin in treatment of comorbid pathology.

MATERIAL AND METHODS

Seventy patients, aged from 7 to 10 years, with the primary monosymtomatic form of enuresis were examined. Enuresis was assessed by the mean number of 'wet' nights per week. Neuropsychological tests were administered to measure short-term auditory-verbal and visual memory as well as SNAP-1V inattention and TOVA impulsivity. Electroencephalography was used as well.

RESULTS AND CONCLUSION

Children with enuresis performed lower on auditory-verbal and visual memory and attention tests compared to the patients of the control group. Electroencephalography showed activation deficit and synchronized effects of thalamic structures. The high efficacy of cerebrolysin (the improvement was seen in 80% of the patients) was demonstrated.

United Arab Emirates (UAE)

This paper will focus on the current state of mental health services in the United Arab Emirates (UAE) and reflect on the various public health, socio-economic and psychosocial factors that have a major impact on the mental health needs of the population. It is to be borne in mind that the services described in this paper are in a state of rapid change, as the country is witnessing one of the fastest rates of development in the world.

Psychiatric dimensions in mothers of children with primary nocturnal enuresis: A controlled study

INTRODUCTION

The etiology of primary nocturnal enuresis (PNE) is not fully understood, but multifactorial factors have been associated with PNE. Parental factors, including attitudes to PNE, disciplinary behaviors, and psychiatric comorbidities in parents have been related to etiology of PNE, outcomes and the quality of life in children with enuresis.

OBJECTIVE

We examined the psychopathology in mothers of children diagnosed with monosymptomatic PNE(MoPNE) compared with mothers of non-enuretic children (MoNEC) in terms of personality characteristics, early traumatic experiences, and psychiatric symptom evaluation.

STUDY DESIGN

The study included 44 mothers of children diagnosed with PNE and 45 mothers of non-enuretic children who were randomly selected from the population applying to the pediatric outpatient clinic. Individuals were assessed through psychometric questionnaires, including the Eysenck Personality Questionnaire Revised Abbreviated (EPQR-A), the Symptom Checklist-90 (SCL-90-R), and the Childhood Trauma Questionnaire (CTQ), in addition to a sociodemographic form including 9 structured "yes/no" questions that evaluated intrafamilial relationships, as well as mothers' perceptions of enuresis and its treatment.

RESULTS

The median age of enuretic children was 7 (6, 9.5) (25th, 75th) years in the study population. The rates of history of enuresis in childhood were 26.7% in the MoPNE group (n = 12) and 6.7% in the MoNEC group (n = 3; p = 0.011). There were significant differences between the groups for the subscales of somatization, anxiety, obsessive-compulsive behavior, depression, interpersonal sensitivity, psychoticism, hostility, phobic anxiety, additional items, and the general psychopathology index in the SCL-90-R scores (p < 0.05). Meanwhile, there was no significant difference for the subscale of paranoid ideation (p = 0.070). There were statistically significant results for the subscales of sexual abuse, physical neglect, and total score in CTQ scale, while the personality dimensions evaluated using the EPQR-A resulted in significant differences in the E and L subscales (p < 0.05) (Table).

CONCLUSION

Our study showed that psychiatric symptomatology and childhood traumatic experiences were considerably higher in mothers of children with PNE. This study highlights the importance of evaluating PNE not only from a biological aspect, but also in terms of psychosocial factors, including assessment of the mother's mental status.

Prevalence of nocturnal enuresis and its influence on quality of life in school-aged children

OBJECTIVE

According to the ICCS definitions, enuresis is defined by an intermittent, wetting during sleep after organic causes have been ruled out with a minimum wetting frequency of once per month. Previous studies reported a prevalence rate of 9-12%. Eighty to 90% of enuresis cases are identified as primary enuresis and are based on genetic predisposition, biological and developmental factors. On the other hand, secondary enuresis frequently arises from psychological factors. In this study we aimed to determine the prevalence and associated factors of nocturnal enuresis (NE) among primary school children.

METHOD

We initiated a prospective cross-sectional epidemiological study from January 2013 to May 2013 by sending a questionnaire to parents of 4250 school children, aged 6-13 years. The questionnaire consisted of three parts. The first part investigated the demographic characteristics of the child and family, such as age, gender, number of siblings, and enuresis history of the parents and siblings. The second part consisted of questions about the presence and frequency of bedwetting, presence of constipation/fecal incontinence, and presence of daytime incontinence (DI). The last part surveyed school performance and the effect of enuresis on quality of life of parents and children. Logistic regression analyses were conducted to determine the significant predictive factors for NE.

RESULTS

The overall prevalence of enuresis was 9.52%. The prevalence of NE among boys and girls was 12.4% and 6.5%, respectively. Daytime incontinence was present in 18% of children. Of enuretic children, 59.2% had a positive family history of enuresis. Constipation was found in 13.2% of children with enuresis and there was no significant association between NE and the presence of constipation. In addition, 48% of enuretic children had poor school performance.

CONCLUSIONS

The current study demonstrated that age, male gender, parents' history of enuresis, and siblings' history of enuresis were significant predictive factors for NE. The majority of the parents did not have adequate interest in enuretic children and most of the children were not treated. Physicians should inform parents of enuretic children with the aim of solving this problem to prevent future issues and development of adulthood lower urinary tract symptoms (LUTS).

Nocturnal enuresis: a suggestive endophenotype marker for a subgroup of inattentive attention-deficit/hyperactivity disorder

OBJECTIVE

Attention-deficit/hyperactivity disorder (ADHD) and enuresis co-occur at a higher rate than expected; the cause for this is unclear.

STUDY DESIGN

Diagnostic and demographic variables were compared in 344 children ages 6 to 12 years, with and without enuresis, recruited in an ADHD genetic study. Sleep variables were investigated in a subgroup of 44 enuretic children with age- and sex-matched nonenuretic controls. The association of enuresis with single nucleotide polymorphisms located in regions reported in linkage with enuresis was explored.

RESULTS

The prevalence rate of nocturnal enuresis was 16.9% for the entire cohort. There were no differences in sex, age, socioeconomic status, intelligence quotient, medication treatment, or comorbidities. The enuresis group had a higher likelihood of inattentive symptoms than the nonenuretic group. Night wakings and ability of children to wake themselves in the morning were both significantly decreased in children with enuresis compared with control children in the Child Sleep Habits Questionnaire Night Wakings subscale. No significant association was found with chromosomal regions previously reported in linkage with enuresis.

CONCLUSIONS

Deficits in arousal may contribute to both enuresis and inattentive ADHD. Nocturnal enuresis may be a useful clinical marker in identifying a subgroup of the inattentive phenotype in ADHD genetic studies.

Prevalence of enuresis and its association with attention-deficit/hyperactivity disorder among U.S. children: results from a nationally representative study

OBJECTIVE

There are no published nationally representative prevalence estimates of enuresis among children in the United States using standardized diagnostic criteria. This study sets out to describe the prevalence, demographic correlates, comorbidities, and service patterns for enuresis in a representative sample of U.S. children.

METHOD

The diagnosis of enuresis was derived from parent-reported data for "enuresis, nocturnal" collected using the computerized version of the Diagnostic Interview Schedule for Children (C-DISC 4.0) from a nationally representative sample of 8- to 11-year-old children (n = 1,136) who participated in the 2001-2004 National Health and Nutrition Examination Surveys.

RESULTS

The overall 12-month prevalence of enuresis was 4.45%. The prevalence in boys (6.21%) was significantly greater than that in girls (2.51%). Enuresis was more common at younger ages and among black youth. Attention-deficit/hyperactivity disorder (ADHD) was strongly associated with enuresis (odds ratio 2.88; 95% confidence interval 1.26-6.57). Only 36% of the enuretic children had received health services for enuresis.

CONCLUSIONS

Enuresis is a common condition among children in the United States. Few families seek treatment for enuresis despite the potential for adverse effects on emotional health. Child health care professionals should routinely screen for enuresis and its effects on the emotional health of the child and the family. Assessment of ADHD should routinely include evaluation for enuresis and vice versa. Research on the explanations for the association between enuresis and ADHD is indicated.

The effect of familial aggregation on the children with primary nocturnal enuresis

OBJECTIVE

To evaluate the effect of familial aggregation on the children with PNE by evaluating nocturnal urine output, bladder, and arouse function.

PATIENTS AND METHODS

According to whether relatives of family of probands over three generations were affected by PNE, forty-five children with familial aggregation PNE (FPNE), seventy children with sporadic PNE (SPNE) and ten children with normal lower urinary tract function but waiting for operation (control group) were included. Questionnaire of arousal from sleep (AS scores), bladder diary and daytime urodynamic studies were performed in all patients.

RESULTS

The incidences of severe PNE and nonmonosymptomatic PNE in FPNE group were significantly higher than those in SPNE group. The nocturnal urine output and AS scores in both PNE groups was significantly higher, maximal voided volume significantly smaller than those in control group. Moreover, the incidences of small bladder in FPNE group was 44%, significantly higher than that in SPNE group (21%), but no significantly difference was found in nocturnal polyuria and arousal AS scores between two PNE groups. There were 53% patents with daytime detrusor overactivity and 60% patents with urodynamic functional bladder outflow obstruction in FPNE group, significantly higher than those in SPNE group (19% and 37%). Maximum cystometric capacity significantly decreased from control group to FPNE group.

CONCLUSION

Familial aggregation has significant effects on the children with PNE, and FPNE are more likely to be severe symptoms and bladder dysfunction. It would be beneficial to have an urodynamic study for their diagnosis and treatment. Neurourol. Urodynam. 28:423-426, 2009. (c) 2008 Wiley-Liss, Inc.