Acessibilidade / Reportar erro

Quality of life, cognitive level and school performance in children with functional lower urinary tract dysfunction

Abstract

Introduction:

Lower urinary tract dysfunction (LUTD) are voiding dysfunctions without anatomical or neurological defects. The diagnosis is primarily clinical, with symptoms standardized by the International Children's Continence Society. Few studies relate quality of life of patients with cognitive and school performance.

Objective:

To evaluate milestones of bladder control, daily problems, quality of life (QoL), cognitive function and school performance of children with LUTD.

Methods:

Case series of patients followed in the Pediatric Nephrology tertiary hospital with assessment of QoL (Pediatric Quality of Life Inventory - PedsQoL version 4), School Performance Test (TDE) and Raven Progressive Matrices test.

Results:

Girls of lower social class were (90.9%) of eligible children. The mean age was 9.1 ± 4.8 years old. The most common symptoms were urge incontinence (81%), holding maneuvers (77.3%) and enuresis (59.1%) associated with the elimination disorder syndrome (63.6%). Caregivers considered volunteers urinary losses and/ or symptoms, and fought and/or beat the child. Children had been subjected to embarrassing situations such as warnings of teachers, they hid symptoms and/or the dirty clothes. Mean score of QoL was 71.0 ± 12.6 with the lowest mean score on the school dimension. In TDE 55% had lower performance and in Raven Matrices 60% were intellectually in the medium level. It was observed lower QoL scores in the medium and lower level of TDE and average intellectual capacity/below average in Raven matrices.

Conclusion:

LUTD may negatively affect family and social relationships, school performance and QoL of children with the dysfunction.

Keywords:
cognitive science; constipation; lower urinary tract symptoms; pediatrics; psychomotor performance; quality of life; underachievement; urinary incontinence

Resumo

Introdução:

Distúrbios do Trato Urinário Inferior (DTUI) de causa funcional são disfunções vesicais sem defeitos anatômicos ou neurológicos. O diagnóstico é principalmente clínico, com sintomas padronizados pela International Children's Continence Society. Poucos estudos relacionam qualidade de vida destes pacientes ao nível cognitivo e aproveitamento escolar.

Objetivos:

Avaliar marcos do controle miccional, dificuldades cotidianas, qualidade de vida (QV), nível cognitivo e desempenho escolar de crianças portadoras de DTUI.

Método:

Série de casos de pacientes acompanhados na Nefrologia Pediátrica de hospital terciário com avaliação da QV (Pediatric Quality of Life Inventory - Peds-QL), Teste de Desempenho Escolar (TDE) e teste de matrizes progressivas de Raven.

Resultados:

Meninas de classe social menos favorecida foram 90,9% das crianças elegíveis. A média de idade foi 9,1 ± 4,8 anos. Os sintomas mais frequentes foram urge-incontinência (81%), manobras de contenção (77,3%) e enurese (59,1%) associados à síndrome do distúrbio de eliminações (63,6%). Cuidadores consideravam as perdas urinárias e/ou sintomas como voluntários, brigavam e/ ou batiam na criança. As crianças já tinham sido submetidas a situações constrangedoras e advertências de professores, escondiam sintomas e/ou roupas sujas. O escore médio de QV foi 71,0 ± 12,6 com menor média na dimensão escolar. No TDE 55% tiveram desempenho inferior e nas Matrizes de Raven 60% estavam intelectualmente em nível médio. Observaram-se escores menores de QV no nível médio e inferior do TDE e capacidade intelectual média/abaixo da média nas Matrizes de Raven.

Conclusão:

DTUI pode influenciar negativamente relações familiares e sociais, desempenho escolar e qualidade de vida das crianças portadoras.

Palavras-chave:
baixo rendimento escolar; ciência cognitiva; constipação intestinal; desempenho psicomotor; incontinência urinária; pediatria; qualidade de vida; sintomas do trato urinário inferior

Introduction

Lower urinary tract symptoms (LUTS) is the term used to indicate abnormalities in the functioning and control of this urinary system segment.11 Nevéus T, von Gontard A, Hoebeke P, Hjälmås K, Bauer S, Bower W, et al. The standardization of terminology of lower urinary tract function in children and adolescents: report from the Standardisation Committee of the International Children's Continence Society. J Urol 2006;176:314-24. PMID: 16753432 DOI: http://dx.doi.org/10.1016/S0022-5347(06)00305-3
http://dx.doi.org/10.1016/S0022-5347(06)...
Changes to the anatomical and/or functional integrity of the components responsible for coordinating the normal storage and urine emptying processes can determine LUTS of neurogenic, anatomic or functional cause. Children with functional LUTS show signs and symptoms determined by detrusor instability or lack of coordination between the detrusor muscle and sphincters without anatomical or neurological defects diagnosed during the investigation.22 Jansson UB, Hanson M, Sillén U, Hellström AL. Voiding pattern and acquisition of bladder control from birth to age 6 years-a longitudinal study. J Urol 2005;174:289-93. PMID: 15947669,33 Mastrocinque TH. Hipertensão arterial na infância e na adolescência. Aspectos clínicos na infância e na adolescência. In: Toporovski J, Mello VR, Martini Filho D, Benini V, Andrade OVB. Nefrologia Pediátrica. 2a ed. Rio de janeiro: Guanabara Koogan; 2006. p.360-72.

For many children and adolescents, the presence of functional LUTS entails changes in their daily lives, which may originate from abuse within the family, of learning difficulties and punishments at school, affecting quality of life. Many healthcare professionals and teachers do not have training to understand the symptoms and behavioral changes, or do not know how to handle and educate the children and their caretakers.44 Mota DM, Victora CG, Hallal PC. Investigação de disfunção miccional em uma amostra populacional de crianças de 3 a 9 anos. J Pediatr (Rio J) 2005;81:225-32.

5 Mota DM, Barros AJ, Matijasevich A, Santos IS. Prevalence of enuresis and urinary symptoms at age 7 years in the 2004 birth cohort from Pelotas, Brazil. J Pediatr (Rio J) 2015;91:52-8. DOI: http://dx.doi.org/10.1016/j.jped.2014.04.011
http://dx.doi.org/10.1016/j.jped.2014.04...
-66 Soares AHR, Moreira MCN, Monteiro LMC, Fonseca EMGO. A enurese em crianças e seus significados para suas famílias: abordagem qualitativa sobre uma intervenção profissional em saúde. Rev Bras Saude Mater Infant 2005;5:301-11.

Classified according to bladder emptying or filling phase, signs and symptoms of lower urinary tract dysfunction have their standard definitions from the International Children's Continence Society (ICCS)11 Nevéus T, von Gontard A, Hoebeke P, Hjälmås K, Bauer S, Bower W, et al. The standardization of terminology of lower urinary tract function in children and adolescents: report from the Standardisation Committee of the International Children's Continence Society. J Urol 2006;176:314-24. PMID: 16753432 DOI: http://dx.doi.org/10.1016/S0022-5347(06)00305-3
http://dx.doi.org/10.1016/S0022-5347(06)...
and can be quantified and diagnosed in children and adolescents through the DVSS (Dysfunctional Voiding Scoring Symptom) questionnaire.77 Calado AA, Araujo EM, Barroso U Jr, Netto JM, Filho MZ, Macedo A Jr, et al. Cross-cultural adaptation of the dysfunctional voiding score symptom (DVSS) questionnaire for Brazilian children. Int Braz J Urol 2010;36:458-63. DOI: http://dx.doi.org/10.1590/S1677-55382010000400009
http://dx.doi.org/10.1590/S1677-55382010...

Functional LUTS is a diagnosis of exclusion, that is, when signs and symptoms exist and one can rule out neurological and anatomical changes through laboratory tests and imaging exams. The functional disorder is associated with delayed maturation of the bladder control, prolonged childish behavior and abnormal habits during toilet training.11 Nevéus T, von Gontard A, Hoebeke P, Hjälmås K, Bauer S, Bower W, et al. The standardization of terminology of lower urinary tract function in children and adolescents: report from the Standardisation Committee of the International Children's Continence Society. J Urol 2006;176:314-24. PMID: 16753432 DOI: http://dx.doi.org/10.1016/S0022-5347(06)00305-3
http://dx.doi.org/10.1016/S0022-5347(06)...
,33 Mastrocinque TH. Hipertensão arterial na infância e na adolescência. Aspectos clínicos na infância e na adolescência. In: Toporovski J, Mello VR, Martini Filho D, Benini V, Andrade OVB. Nefrologia Pediátrica. 2a ed. Rio de janeiro: Guanabara Koogan; 2006. p.360-72.,88 Bauer SB. Special considerations of the overactive bladder in children. Urology 2002;60:43-8. DOI: http://dx.doi.org/10.1016/S0090-4295(02)01793-4
http://dx.doi.org/10.1016/S0090-4295(02)...

9 Nijman RJ. Role of antimuscarinics in the treatment of nonneurogenic daytime urinary incontinence in children. Urology 2004;63:45-50. PMID: 15013652 DOI: http://dx.doi.org/10.1016/j.urology.2003.11.004
http://dx.doi.org/10.1016/j.urology.2003...
-1010 Greenfield SP. The overactive bladder in childhood. J Urol 2000;163:578-9. PMID: 10647688 DOI: http://dx.doi. org/10.1016/S0022-5347(05)67935-9
http://dx.doi. org/10.1016/S0022-5347(05...

Functional LUTS often accompanies changes in bowel habits, determining the elimination disorder syndrome. Thus, constipation may originate or be the consequence of urinary disorder. Functional LUTS presents with high morbidity, causing repeated urinary tract infections, vesicoureteral reflux, renal scarring and even end-stage chronic renal disease.11 Nevéus T, von Gontard A, Hoebeke P, Hjälmås K, Bauer S, Bower W, et al. The standardization of terminology of lower urinary tract function in children and adolescents: report from the Standardisation Committee of the International Children's Continence Society. J Urol 2006;176:314-24. PMID: 16753432 DOI: http://dx.doi.org/10.1016/S0022-5347(06)00305-3
http://dx.doi.org/10.1016/S0022-5347(06)...
,1111 Farhat W, Bägli DJ, Capolicchio G, O'Reilly S, Merguerian PA, Khoury A, et al. The dysfunctional voiding scoring system: quantitative standardization of dysfunctional voiding symptoms in children. J Urol 2000;1011-5.

12 Leclair MD, Héloury Y. Non-neurogenic elimination disorders in children. J Pediatr Urol 2010;6:338-45. DOI:http://dx.doi.org/10.1016/j.jpurol.2010.01.006
http://dx.doi.org/10.1016/j.jpurol.2010....
-1313 Ural Z, Ulman I, Avanoglu A. Bladder dynamics and vesicoureteral reflux: factors associated with idiopathic lower urinary tract dysfunction in children. J Urol 2008;179:1564-7. DOI: http://dx.doi.org/10.1016/j.juro.2007.11.095
http://dx.doi.org/10.1016/j.juro.2007.11...
It is also responsible for psychological changes, stressing the importance of targeting studies towards diagnosis and early treatment, aiming at preventing its physical and psychological consequences.11 Nevéus T, von Gontard A, Hoebeke P, Hjälmås K, Bauer S, Bower W, et al. The standardization of terminology of lower urinary tract function in children and adolescents: report from the Standardisation Committee of the International Children's Continence Society. J Urol 2006;176:314-24. PMID: 16753432 DOI: http://dx.doi.org/10.1016/S0022-5347(06)00305-3
http://dx.doi.org/10.1016/S0022-5347(06)...
,44 Mota DM, Victora CG, Hallal PC. Investigação de disfunção miccional em uma amostra populacional de crianças de 3 a 9 anos. J Pediatr (Rio J) 2005;81:225-32.

5 Mota DM, Barros AJ, Matijasevich A, Santos IS. Prevalence of enuresis and urinary symptoms at age 7 years in the 2004 birth cohort from Pelotas, Brazil. J Pediatr (Rio J) 2015;91:52-8. DOI: http://dx.doi.org/10.1016/j.jped.2014.04.011
http://dx.doi.org/10.1016/j.jped.2014.04...
-66 Soares AHR, Moreira MCN, Monteiro LMC, Fonseca EMGO. A enurese em crianças e seus significados para suas famílias: abordagem qualitativa sobre uma intervenção profissional em saúde. Rev Bras Saude Mater Infant 2005;5:301-11.

The incidence of functional LUTS found in the literature in children and adolescents can vary from 3.5 to 20%, and can be explained by the methodology as well as the sample employed. Its prevalence is usually higher in girls than in boys and it gradually reduces as the kids age.11 Nevéus T, von Gontard A, Hoebeke P, Hjälmås K, Bauer S, Bower W, et al. The standardization of terminology of lower urinary tract function in children and adolescents: report from the Standardisation Committee of the International Children's Continence Society. J Urol 2006;176:314-24. PMID: 16753432 DOI: http://dx.doi.org/10.1016/S0022-5347(06)00305-3
http://dx.doi.org/10.1016/S0022-5347(06)...

2 Jansson UB, Hanson M, Sillén U, Hellström AL. Voiding pattern and acquisition of bladder control from birth to age 6 years-a longitudinal study. J Urol 2005;174:289-93. PMID: 15947669

3 Mastrocinque TH. Hipertensão arterial na infância e na adolescência. Aspectos clínicos na infância e na adolescência. In: Toporovski J, Mello VR, Martini Filho D, Benini V, Andrade OVB. Nefrologia Pediátrica. 2a ed. Rio de janeiro: Guanabara Koogan; 2006. p.360-72.
-44 Mota DM, Victora CG, Hallal PC. Investigação de disfunção miccional em uma amostra populacional de crianças de 3 a 9 anos. J Pediatr (Rio J) 2005;81:225-32.,88 Bauer SB. Special considerations of the overactive bladder in children. Urology 2002;60:43-8. DOI: http://dx.doi.org/10.1016/S0090-4295(02)01793-4
http://dx.doi.org/10.1016/S0090-4295(02)...
,1414 Lordêlo P, Teles A, Veiga ML, Correia LC, Barroso U Jr. Transcutaneous electrical nerve stimulation in children with overactive bladder: a randomized clinical trial. J Urol 2010;184:683-9. DOI: http://dx.doi.org/10.1016/j.juro.2010.03.053
http://dx.doi.org/10.1016/j.juro.2010.03...
A study involving 590 children between 3 and 9 years from the city of Pelotas, Brazil, found that 22.8% of them had some type of voiding dysfunction, with higher prevalence among girls (35.8%) compared to boys (11.2%). Another study by Vaz et al.,1515 Vaz GT, Vasconcelos MM, Oliveira EA, Ferreira AL, Magalhães PG, Silva FM, et al. Prevalence of lower urinary tract symptoms in school-age children. Pediatr Nephrol 2012;27:597-603. DOI: http://dx.doi.org/10.1007/s00467-011-2028-1
http://dx.doi.org/10.1007/s00467-011-202...
in Belo Horizonte, showed the presence of urinary incontinence and enuresis in up to 20% of the school-aged children evaluated. Girls had a higher frequency of urinary incontinence, holding maneuvers and urinary urgency.44 Mota DM, Victora CG, Hallal PC. Investigação de disfunção miccional em uma amostra populacional de crianças de 3 a 9 anos. J Pediatr (Rio J) 2005;81:225-32.,55 Mota DM, Barros AJ, Matijasevich A, Santos IS. Prevalence of enuresis and urinary symptoms at age 7 years in the 2004 birth cohort from Pelotas, Brazil. J Pediatr (Rio J) 2015;91:52-8. DOI: http://dx.doi.org/10.1016/j.jped.2014.04.011
http://dx.doi.org/10.1016/j.jped.2014.04...
,1515 Vaz GT, Vasconcelos MM, Oliveira EA, Ferreira AL, Magalhães PG, Silva FM, et al. Prevalence of lower urinary tract symptoms in school-age children. Pediatr Nephrol 2012;27:597-603. DOI: http://dx.doi.org/10.1007/s00467-011-2028-1
http://dx.doi.org/10.1007/s00467-011-202...

Despite the clinical relevance and emotional impact that may arise from LUTS in a particularly important time for the development of the individual, many parents and caregivers face the symptoms as "normal", while others regard it as "the child being lazy to go to the bathroom" or "not wanting to leave the play" and blame the children for their urinary losses and for wetting their clothes. There are frequent cases of verbal and physical punishment, even submitting the children to embarrassing situations in order to inhibit the disorder.44 Mota DM, Victora CG, Hallal PC. Investigação de disfunção miccional em uma amostra populacional de crianças de 3 a 9 anos. J Pediatr (Rio J) 2005;81:225-32.

5 Mota DM, Barros AJ, Matijasevich A, Santos IS. Prevalence of enuresis and urinary symptoms at age 7 years in the 2004 birth cohort from Pelotas, Brazil. J Pediatr (Rio J) 2015;91:52-8. DOI: http://dx.doi.org/10.1016/j.jped.2014.04.011
http://dx.doi.org/10.1016/j.jped.2014.04...
-66 Soares AHR, Moreira MCN, Monteiro LMC, Fonseca EMGO. A enurese em crianças e seus significados para suas famílias: abordagem qualitativa sobre uma intervenção profissional em saúde. Rev Bras Saude Mater Infant 2005;5:301-11.

Despite the increased global interest in studies that assess the quality of life in children and adolescents with different diseases, scientific publications in relation to LUTS in Brazil are still very few.66 Soares AHR, Moreira MCN, Monteiro LMC, Fonseca EMGO. A enurese em crianças e seus significados para suas famílias: abordagem qualitativa sobre uma intervenção profissional em saúde. Rev Bras Saude Mater Infant 2005;5:301-11.,1616 Soares AHR, Martins AJ, Lopes MCB, Britto JAA, Oliveira CQO, Moreira MCN. Qualidade de vida de crianças e adolescentes: uma revisão bibliográfica. Ciênc Saúde Coletiva 2011;16:3197-206. DOI: http://dx.doi.org/10.1590/S1413-81232011000800019
http://dx.doi.org/10.1590/S1413-81232011...
The disease may be a factor that negatively affects the individual's relationships, and it may be associated with developmental deficits and poor quality of life. Even much less frequent are studies that assess more accurately the relationship of the child with the school, as well as how much LUTS and its negative effects can influence the child's development and school performance.44 Mota DM, Victora CG, Hallal PC. Investigação de disfunção miccional em uma amostra populacional de crianças de 3 a 9 anos. J Pediatr (Rio J) 2005;81:225-32.

5 Mota DM, Barros AJ, Matijasevich A, Santos IS. Prevalence of enuresis and urinary symptoms at age 7 years in the 2004 birth cohort from Pelotas, Brazil. J Pediatr (Rio J) 2015;91:52-8. DOI: http://dx.doi.org/10.1016/j.jped.2014.04.011
http://dx.doi.org/10.1016/j.jped.2014.04...
-66 Soares AHR, Moreira MCN, Monteiro LMC, Fonseca EMGO. A enurese em crianças e seus significados para suas famílias: abordagem qualitativa sobre uma intervenção profissional em saúde. Rev Bras Saude Mater Infant 2005;5:301-11.

This exploratory study aims to give a description of the sociodemographic aspects regarding voiding control development milestones in children with functional LUTS and submit a reflection on the influence of this disorder in the relationship of these patients with parents, teachers and friends vis-à-vis quality of life, cognitive level and school performance.

Method

This exploratory study was carried out, involving a prospective case series of patients with functional LUTS followed at the Pediatric Nephrology clinic of the Integrative Medicine Institute Prof. Fernando Figueira -IMIP, Recife, PE, from September 2013 to March 2014. A consecutive convenience sample was obtained including patients aged 5 to 14 years diagnosed with functional LUTS. We excluded those patients who used medications that altered urinary habits.

Although some of the patients had had the diagnosis of functional LUTS and were being followed up at the clinic, we established a strategy for adding new cases. Initially, our group investigated the frequency of LUTS among the patients who visited the Pediatric Nephrology and Pediatric wards of IMIP.1717 Gomes RC, Cavalcanti BMH, Santos LC, Mello MJG, Ribeiro Neto JPM. Prevalência de distúrbio do trato urinário inferior em crianças atendidas no ambulatório pediátrico de um hospital de ensino. V Congresso Científico do IMIP; 19 Mar 2013; Recife, PE, Brasil. Using the translated and cross-culturally adapted version of the DVSS validated for Brazil77 Calado AA, Araujo EM, Barroso U Jr, Netto JM, Filho MZ, Macedo A Jr, et al. Cross-cultural adaptation of the dysfunctional voiding score symptom (DVSS) questionnaire for Brazilian children. Int Braz J Urol 2010;36:458-63. DOI: http://dx.doi.org/10.1590/S1677-55382010000400009
http://dx.doi.org/10.1590/S1677-55382010...
and using six and nine years of age as cutoff points for girls and boys, respectively; 17.7% of the 417 children and adolescents in the study had LUTS symptoms.1818 Rizzini M, Donatti TL, Bergamaschi DP, Brunken GS. Conceptual, item, and semantic equivalence of the Brazilian version of the Dysfunctional Voiding Scoring System (DVSS) instrument for evaluating lower urinary tract dysfunction in children. Cad Saude Pública 2009;25:1743-55.

The patients were seen by a pediatric nephrologist who, following the clinic's routine, made a detailed physical examination to rule out signs of dysraphism and anatomical changes to their genitals; Laboratory tests were performed to rule out urinary tract infection, abnormal renal function, hypercalciuria and hyperuricosuria. Plain radiographs of the lumbosacral spine were taken to rule out bone changes that could compromise the lower urinary tract innervation; and we carried out dynamic and anatomical kidney and urinary tract ultrasound scans - performed by an experienced radiologist (in accordance with guidelines from studies on the use of dynamic ultrasound and functional LUTS1919 Filgueiras MFTF, Sanches T, Vasconcelos M, Marino VP, Rabelo EAS, Silva JMP, et al. Diagnóstico da disfunção miccional pela ultrassonografia dinâmica (USD) em crianças e adolescentes vs estudo urodinâmico. J Bras Nefrol 2001;23:8-24.

20 Filgueiras MF, Lima EM, Sanchez TM, Goulart EM, Menezes AC, Pires CR. Bladder dysfunction: diagnosis with dynamic US. Radiology 2003;227:340-4. PMID: 12676967 DOI: http://dx.doi.org/10.1148/radiol.2272011872
http://dx.doi.org/10.1148/radiol.2272011...
-2121 Tafuro L, Montaldo P, Iervolino LR, Cioce F, del Gado R. Ultrasonographic bladder measurements can replace urodynamic study for the diagnosis of non-monosymptomatic nocturnal enuresis. BJU Int 2010;105:108-11. DOI: http://dx.doi.org/10.1111/j.1464-410X.2009.08735.x
http://dx.doi.org/10.1111/j.1464-410X.20...
) to look for bladder behavior during the filling and emptying phases, and to rule out anatomical changes not related to functional LUTS.

We collected the following variables from the sample: age, gender and state of residence (Recife, the state of Pernambuco or from other states). We assessed the caregiver's marital status and the caregiver's and patient's educational level according to number of years of schooling from the age of seven - the age of compulsory education in Brazil. Socioeconomic status was estimated according to the Economic Classification Criterion Brazil from the Brazilian Association of Survey Companies into classes A1, A2, B1, B2, C1, C2, D and E.2222 Associação Brasileira de Empresas e Pesquisa (2011). Critério de classificação econômica Brasil. São Paulo. [Acessado em: 20 de agosto de 2012]. Disponível em: http://www.abep.org/novo/Content.aspx?ContentID=301
http://www.abep.org/novo/Content.aspx?Co...

LUTS symptoms were evaluated following the ICCS definitions.11 Nevéus T, von Gontard A, Hoebeke P, Hjälmås K, Bauer S, Bower W, et al. The standardization of terminology of lower urinary tract function in children and adolescents: report from the Standardisation Committee of the International Children's Continence Society. J Urol 2006;176:314-24. PMID: 16753432 DOI: http://dx.doi.org/10.1016/S0022-5347(06)00305-3
http://dx.doi.org/10.1016/S0022-5347(06)...
The ages of LUTS symptoms onset, the perception of micturition desire, daytime urination control, nocturnal urination, the weaning of diapers at daytime and nighttime, were all expressed in full years until the event, according to reports from the caregivers.

For quality of life, the average scores were calculated as score-driven by the PedsQL-Generic core Questionnaires (Standard Form) of Measurement Model for the Pediatric Quality of Life inventory™ - Version 4.0 - in its form duly validated for Brazil, the PedsQLInventory ™ - Version 4.0.2323 Generic Core Questionnaires (Standard Form) of Measurement Model for the Pediatric Quality of Life Invetory™- Version 4.0 - na sua forma validada no Brasil, o PedsQLInventory™- Versão 4.0 [Cited 2016 Mar 18]. Avaliable from: http://www.pedsql.org/about_pedsql.html
http://www.pedsql.org/about_pedsql.html...

The school performance test (SPT) ranked performance in higher, medium, lower.2424 Stein LM. TED: Teste de desempenho escolar: manual de aplicação. São Paulo: Casa do Psicólogo; 1994. Raven's Progressive Matrices classified children in intellectually superior, above average, average, below average and inferior.2525 Angelini AL, Alves ICB, Custódio EM, Duarte WF, Duarte JLM. Matrizes progressivas coloridas de Raven. São Paulo: Centro Editor de Testes e Pesquisas em Psicologia; 1999.,2626 Raven JC. Teste das matrizes progressivas. Escala Geral. 4a ed. Rio de Janeiro: Centro Editor de Psicologia Aplicada; 2008.

The survey form prepared by the principal investigator was submitted to face and content validation before its application.2727 Litwin MS. Validity. In: Litwin MS. How to measure survey reliability and validity. 1st ed. Thousand Oaks: Sage publications; 1995. p.33-44. For face validation, they invited three lay persons in relation to LUTS. For content validation, they asked ten experts (pediatricians and/or pediatric nephrologists and psychologist) to discuss the questions and make the necessary adjustments.

Both patient and caregiver were interviewed in a quiet and reserved environment by the principal investigator. The survey form included sociodemographic data, questions related to the patient's daily life, age of symptoms onset and developmental milestones concerning micturition control through an instrument made by the researchers. Following, they employed a standardized questionnaire to assess quality of life in children and adolescents.

The school performance assessment test (SPT)2424 Stein LM. TED: Teste de desempenho escolar: manual de aplicação. São Paulo: Casa do Psicólogo; 1994. was only applied to patients 6-14 years of age. The application of non-verbal intelligence test, the Raven test of progressive matrices2525 Angelini AL, Alves ICB, Custódio EM, Duarte WF, Duarte JLM. Matrizes progressivas coloridas de Raven. São Paulo: Centro Editor de Testes e Pesquisas em Psicologia; 1999.,2626 Raven JC. Teste das matrizes progressivas. Escala Geral. 4a ed. Rio de Janeiro: Centro Editor de Psicologia Aplicada; 2008. was performed by only one psychologist assigned by the study crew.

The data was stored in the database generated by the EpiInfo 3.5.4 software. After double entry, the data was compared, correcting for any errors or discrepancies. The final database was then used for statistical analysis. For a description of categorical variables, we calculated the distribution of frequencies, and for continuous numerical variables, we used the central tendency and dispersion measures. We also used the contingency table to correlate quality of life and cognitive development, also quality of life and school performance.

The project was approved by the Research in Humans Ethics Committee of the Institute Prof. Fernando Figueira - IMIP with registration number 3662-13. The guardian and the child were informed about the study and its objectives, they agreed to participate and signed the Informed Consent and Study Agreement forms.

The methodological difficulties related to our study are inherent to a case series, which do not allow for causal inferences; however, enabling us to formulate hypotheses. The biases that may arise from the data collection are those related to the information, especially memory, reliability and reproducibility biases. Studies involving past events are subject to recall bias; however, our study involved milestones of child development that are culturally emphasized by parents and caregivers.

In an attempt to reduce bias, the study form and the quality of life form were applied by the principal investigator (pediatric nephrologist) only, and the Raven Progressive Matrices test, as well as the TDE were given by the same psychologist.

Results

During the study period, 22 children with LUTS were eligible for the study and the majority (90.9%) were female (Table 1). The mean age was 9.1 ± 4.8 years and 68.1% (15) had between 8 and 12 years (Table 1). The caregivers were married (77.3%) or had stable partners, and 77.3% came from the interior of Pernambuco. Regarding education, the patients had an average of 4.0 ± 2.2 years of study completed and the caregivers had 10.2 ± 4.5. In this sample, the patients belonged to lower social classes: C1 (36.4%); C2 (50%) and D (13.6%).

Table 1
Description of the biological characteristics, frequency, age of symptom onset and urinary control landmarks of children and teenagers (5 to 14 years of life) with functional luts, followed at the pediatric nephrology clinic of the imip from september 2013 through march, 2014

The most frequently reported LUTS symptoms were: urge incontinence (81%), holding maneuvers (77.3%) and enuresis (59.1%), and 63.6% had eliminations disorder syndrome: 59.1% had constipation and one child had fecal incontinence. Two children had urinary urgency, two others had decreased frequency of urination; and dysuria was not reported (Table 1).

As for the milestones in the development of bladder control in these patients, the mean age of voiding desire perception onset was 2.7 ± 3.1 years; weaning from diapers during daytime 3.9 ± 2.6 years (one child was still in use of diapers during the day), and the weaning of diapers at nighttime 5.6 ± 2.8 years. In approximately 1/3 of the children, LUTS symptoms were reported after a urinary control period considered appropriate, according to the caregivers.

The average age of symptom onset in six of the seven patients who started the symptoms after controlling urination (the mother of one of the patients did not remember the age of onset) was 5.1 ± 2.9 years and none of them reported traumatic events related to the onset of symptoms (Table 1). Two of the 22 caregivers (9.1%) reported having had instructions from healthcare professionals regarding the care to wean the diapers.

Three of the 20 (15%) caregivers said that the signs and symptoms represented a health-related problem of the children (Table 2). The other caregivers believed that urinary incontinence and/or symptoms occurred because the children were lazy to go to the bathroom (90%; 18/20) and/or 75% (15/20) that the losses were voluntary, on purpose. When asked how they would react in the face of children with symptoms of urge incontinence/enuresis, 85% (17/20) of the caregivers reported having yelled at the kid; 35% (7/20) had already beaten the child and 50% (10/20) reported that the child had been subjected to embarrassing situations by them or by other adults. Eight (40%) of 20 had already noticed that the child was hiding wet clothes (Table 2).

Table 2
Aspects of the relationship with the parents, with other children and with the school of the children and adolescents (5 to 14 years) with functional luts, followed in the pediatric nephrology clinic of the imip during the period of september of 2013 and march of 2014

When the children with enuresis or urgency/urge incontinence (20) were asked about the most common situations of their day-to-day in relation to other children of their acquaintance, 50% (10/20) answered that the other children knew they had wet their clothes; 46.1% (6/13) reported that other children knew they had enuresis; 45% (9/20) had had to hide their clothes from the other classmates at school; 25% (5/20) said other children often made fun of their problem, and 50% (10/20) had received a nickname because of their LUTS. Among the 13 patients who were allowed to attend the home of friends by their caregivers, 61.5% (8/13) reported that they did not like to go and 53.84% (7/13) claimed to be the LUTS symptoms that prevented them from going. Among the nine who were allowed to sleep over at a friend's place, 88.8% (8/9) of the children said they did not like it, and 77.7% (7/9) reported that the reason was the loss of urine during the night (Table 2).

When asked about the school and about the relationship with teachers (Table 3), 77.3% (17/22) of the children said they liked to go to school, but the teacher only allowed them to go to the bathroom sometimes, rarely or never when requested. Seventeen of 22 (77.2%) patients received complaints from teachers, usually because of the greater need to go to the bathroom; and 5.8% (1/17) because the student often missed class because of a medical follow-up (Table 3).

Table 3
Aspects associated with the relationship between the school and the teachers of children and adolescents (5 to 14 years of age) with functional luts followed in the pediatric nephrology clinic of the imip between september and march of 2014

Twenty of the 22 eligible patients returned to the psychology clinic to carry out the school performance test (SPT) and Raven Matrices. Concerning the SPT, 5% (1/20) had outperformed the average; 40% (8/20) had average performance and 55% (11/20) had underperformed the overall average (Table 4). Considering Raven's Matrices, 60% (12/20) of the patients were intellectually at a medium level (Table 5).

Table 4
Levels obtained from the math, writing and reading tests and in the final spt score and mean of the quality of life total score from each group of children followed in the pediatric nephrology clinic of the imip between september of 2013 and march of 2014
Table 5
Distribution of the function luts children from 5 to 14 years of age followed in the imipc pediatrics nephrology clinic between september of 2013 and march of 2014, according to the levels obtained from the raven progressive matrices test: intellectually deficient, below intellectual capacity average, intellectually average, above average for intellectual capacity and intellectually higher

The average quality of life score (QOL) was 71.0 ± 12.6, and the lowest average among the four health dimension subscales was the school (54.8 ± 16.8) (Table 6). When stratifying the average quality of life according to the results of the school performance test (Table 4), we found lower average QoL scores in patients with medium level (68.5 ± 12.9) and lower level (70.4 ± 10.4). When QoL was evaluated in relation to the Raven's Matrices test, patients with average intellectual capacity, and below average had the worst results, 67.8 ± 11.9 and 65.2 ± 6.1, respectively (Table 5).

Table 6
Mean value of the quality of life scores of patients between 5 and 14 years of age with functional luts followed in the pediatric nephrology clinic of imip between september of 2013 and march of 2014

Discussion

This study describes a number of cases of children and adolescents with functional LUTS, followed at the Pediatric Nephrology Clinic of the IMIP. Since it was a series of cases, we did not perform the statistical significance test; however, we could confirm and highlight some profiles evidenced in the literature that elaborates on the topic.

The predominance of LUTS among female children were in accordance to that reported in the literature, but the relative frequency among males was much higher in our study than in others.33 Mastrocinque TH. Hipertensão arterial na infância e na adolescência. Aspectos clínicos na infância e na adolescência. In: Toporovski J, Mello VR, Martini Filho D, Benini V, Andrade OVB. Nefrologia Pediátrica. 2a ed. Rio de janeiro: Guanabara Koogan; 2006. p.360-72.,1212 Leclair MD, Héloury Y. Non-neurogenic elimination disorders in children. J Pediatr Urol 2010;6:338-45. DOI:http://dx.doi.org/10.1016/j.jpurol.2010.01.006
http://dx.doi.org/10.1016/j.jpurol.2010....
,1313 Ural Z, Ulman I, Avanoglu A. Bladder dynamics and vesicoureteral reflux: factors associated with idiopathic lower urinary tract dysfunction in children. J Urol 2008;179:1564-7. DOI: http://dx.doi.org/10.1016/j.juro.2007.11.095
http://dx.doi.org/10.1016/j.juro.2007.11...
,1515 Vaz GT, Vasconcelos MM, Oliveira EA, Ferreira AL, Magalhães PG, Silva FM, et al. Prevalence of lower urinary tract symptoms in school-age children. Pediatr Nephrol 2012;27:597-603. DOI: http://dx.doi.org/10.1007/s00467-011-2028-1
http://dx.doi.org/10.1007/s00467-011-202...
Some LUTS symptoms may be related to incorrect toilet training, and it is assumed that, culturally, girls are taught to postpone urination in order to find an appropriate place, with good hygienic conditions.2828 Koff SA. Evaluation and management of voiding disorders in children. Urol Clin North Am 1988;15:769-75.

29 Hellström A, Hanson E, Hansson S, Hjälmäs K, Jodal U. Micturition habits and incontinence at age 17--reinvestigation ofa cohort studied at age 7. Br J Urol 1995;76:231-4. PMID: 7663917
-3030 Swithinbank LV, Brookes ST, Shepherd AM, Abrams P. The natural history of urinary symptoms during adolescence. Br J Urol 1998;81:90-3. PMID: 9634028 DOI: http://dx.doi. org/10.1046/j.1464-410x.1998.00016.x
http://dx.doi. org/10.1046/j.1464-410x.1...
However, Chung et al.,3131 Chung JM, Lee SD, Kang DI, Kwon DD, Kim KS, Kim SY, et al. Prevalence and associated factors of overactive bladder in Korean children 5-13 years old: a nationwide multicenter study. Urology 2009;73:63-7. DOI: http://dx.doi.org/10.1016/j.urology.2008.06.063
http://dx.doi.org/10.1016/j.urology.2008...
in Korea, demonstrated a high prevalence of overactive bladder among school children from 5 to 13 years of age (16.59%), with no difference between the genders, while another study in Sweden also showed no significant difference between boys and girls.22 Jansson UB, Hanson M, Sillén U, Hellström AL. Voiding pattern and acquisition of bladder control from birth to age 6 years-a longitudinal study. J Urol 2005;174:289-93. PMID: 15947669

The average age of the study group was higher than that reported in the literature, 8 to 12 years old were the children in the predominant age group, unlike other studies in which the average age was generally lower and showing that the symptoms become less frequent with the increase in age.1010 Greenfield SP. The overactive bladder in childhood. J Urol 2000;163:578-9. PMID: 10647688 DOI: http://dx.doi. org/10.1016/S0022-5347(05)67935-9
http://dx.doi. org/10.1016/S0022-5347(05...
,1212 Leclair MD, Héloury Y. Non-neurogenic elimination disorders in children. J Pediatr Urol 2010;6:338-45. DOI:http://dx.doi.org/10.1016/j.jpurol.2010.01.006
http://dx.doi.org/10.1016/j.jpurol.2010....
,1313 Ural Z, Ulman I, Avanoglu A. Bladder dynamics and vesicoureteral reflux: factors associated with idiopathic lower urinary tract dysfunction in children. J Urol 2008;179:1564-7. DOI: http://dx.doi.org/10.1016/j.juro.2007.11.095
http://dx.doi.org/10.1016/j.juro.2007.11...
,1515 Vaz GT, Vasconcelos MM, Oliveira EA, Ferreira AL, Magalhães PG, Silva FM, et al. Prevalence of lower urinary tract symptoms in school-age children. Pediatr Nephrol 2012;27:597-603. DOI: http://dx.doi.org/10.1007/s00467-011-2028-1
http://dx.doi.org/10.1007/s00467-011-202...
Among girls, the peak prevalence of LUTS was 8.7% at seven years, gradually decreasing to 4% in adolescents; and among boys these rates were 1.4% and 0.9%, respectively.2828 Koff SA. Evaluation and management of voiding disorders in children. Urol Clin North Am 1988;15:769-75.,2929 Hellström A, Hanson E, Hansson S, Hjälmäs K, Jodal U. Micturition habits and incontinence at age 17--reinvestigation ofa cohort studied at age 7. Br J Urol 1995;76:231-4. PMID: 7663917

Most of the studied population belonged to social classes C and D, since the study was held in a hospital that caters exclusively for patients of the Public Healthcare System (SUS). A Brazilian study with children with functional LUTS44 Mota DM, Victora CG, Hallal PC. Investigação de disfunção miccional em uma amostra populacional de crianças de 3 a 9 anos. J Pediatr (Rio J) 2005;81:225-32. and one Italian study involving patients with enuresis also demonstrated a higher prevalence of these symptoms in children of low socioeconomic status.3232 Chiozza ML, Bernardinelli L, Caione P, Del Gado R, Ferrara P, Giorgi PL, et al. An Italian epidemiological multicentre study of nocturnal enuresis. Br J Urol 1998;81:86-9. PMID: 9634027 DOI: http://dx.doi.org/10.1046/j.1464-410x.1998.00015.x
http://dx.doi.org/10.1046/j.1464-410x.19...

The most frequently reported LUTS symptoms were urge incontinence, holding maneuvers and enuresis, as per observed in other studies.44 Mota DM, Victora CG, Hallal PC. Investigação de disfunção miccional em uma amostra populacional de crianças de 3 a 9 anos. J Pediatr (Rio J) 2005;81:225-32.,55 Mota DM, Barros AJ, Matijasevich A, Santos IS. Prevalence of enuresis and urinary symptoms at age 7 years in the 2004 birth cohort from Pelotas, Brazil. J Pediatr (Rio J) 2015;91:52-8. DOI: http://dx.doi.org/10.1016/j.jped.2014.04.011
http://dx.doi.org/10.1016/j.jped.2014.04...
,1212 Leclair MD, Héloury Y. Non-neurogenic elimination disorders in children. J Pediatr Urol 2010;6:338-45. DOI:http://dx.doi.org/10.1016/j.jpurol.2010.01.006
http://dx.doi.org/10.1016/j.jpurol.2010....
,1717 Gomes RC, Cavalcanti BMH, Santos LC, Mello MJG, Ribeiro Neto JPM. Prevalência de distúrbio do trato urinário inferior em crianças atendidas no ambulatório pediátrico de um hospital de ensino. V Congresso Científico do IMIP; 19 Mar 2013; Recife, PE, Brasil. In Sweden and Australia, urinary incontinence, holding maneuvers and dysuria were more frequent in girls and enuresis in boys.3333 Hellström AL, Hanson E, Hansson S, Hjälmås K, Jodal U. Micturition habits and incontinence in 7-year-old Swedish school entrants. Eur J Pediatr 1990;149:434-7. PMID: 2332015 DOI: http://dx.doi.org/10.1007/BF02009667
http://dx.doi.org/10.1007/BF02009667...
,3434 Sureshkumar P, Craig JC, Roy LP, Knight JF. Daytime urinary incontinence in primary school children: a population-based survey. J Pediatr 2000;137:814-8. PMID: 11113838 DOI: http://dx.doi.org/10.1067/mpd.2000.109196
http://dx.doi.org/10.1067/mpd.2000.10919...
in Brazil, when analyzing the prevalence of isolated urinary symptoms, the most common were nocturia (60.4%), urinary urgency (30.3%) and holding maneuvers (21.2%), all of which are more common in girls; although for nocturia there were no statistically significance difference.44 Mota DM, Victora CG, Hallal PC. Investigação de disfunção miccional em uma amostra populacional de crianças de 3 a 9 anos. J Pediatr (Rio J) 2005;81:225-32.

LUTS associated with gastrointestinal dysfunction (the elimination disorder syndrome) already described in other studies, was also present in most of our patients. We emphasize the importance of these symptoms, especially having seen that the treatment of the gastrointestinal disorder, in some cases, can improve functional LUTS and vice versa.3535 Koff SA, Wagner TT, Jayanthi VR. The relationship among dysfunctional elimination syndromes, primary vesicoureteral reflux and urinary tract infections in children. J Urol 1998;160:1019-22. DOI: http://dx.doi.org/10.1016/S0022-5347(01)62686-7
http://dx.doi.org/10.1016/S0022-5347(01)...

36 Loening-Baucke V. Urinary incontinence and urinary tract infection and their resolution with treatment of chronic constipation of childhood. Pediatrics 1997;100:228-32. PMID: 9240804 DOI: http://dx.doi.org/10.1542/peds.100.2.228
http://dx.doi.org/10.1542/peds.100.2.228...
-3737 Bakker E, Wyndaele JJ. Changes in the toilet training of children during the last 60 years: the cause of an increase in lower urinary tract dysfunction? BJU Int 2000;86:248-52.

As for the milestones in the development of bladder control in these patients, very few studies were found. Although there is the possibility of recall bias on the information collected, the average age of onset of perception of voiding desire and diaper weaning during daytime in our study was close to the one described in the Brazilian study from the city of Pelotas, where the average age of daytime sphincter control was 22.6 ± 11.2 months, and at 12 months, 15.1% of children had had daytime control at 18 months, 41.7% and up to 36 months for 97.6% of them.44 Mota DM, Victora CG, Hallal PC. Investigação de disfunção miccional em uma amostra populacional de crianças de 3 a 9 anos. J Pediatr (Rio J) 2005;81:225-32.,55 Mota DM, Barros AJ, Matijasevich A, Santos IS. Prevalence of enuresis and urinary symptoms at age 7 years in the 2004 birth cohort from Pelotas, Brazil. J Pediatr (Rio J) 2015;91:52-8. DOI: http://dx.doi.org/10.1016/j.jped.2014.04.011
http://dx.doi.org/10.1016/j.jped.2014.04...

Nighttime urination control among children in our study occurred later in the study mentioned above, in which nighttime control occurred on average at 24.4 ± 14.8 months. In the study of Pelotas, at 12 months 10.5% of the children had nocturnal control, 28.8% in up to 18 months, and 89.9% of them in up to 36 months.44 Mota DM, Victora CG, Hallal PC. Investigação de disfunção miccional em uma amostra populacional de crianças de 3 a 9 anos. J Pediatr (Rio J) 2005;81:225-32.

Regarding the weaning of diapers, only two caregivers reported having had a healthcare professional instructing them on the correct age to do it and how it should be done. In the study carried out in Pelotas, about 20% of households reported that pediatricians had instructed them on toilet training and the majority of mothers (60%) said they "did what they thought best", "following what they already knew" or he had "learned during life".44 Mota DM, Victora CG, Hallal PC. Investigação de disfunção miccional em uma amostra populacional de crianças de 3 a 9 anos. J Pediatr (Rio J) 2005;81:225-32.

Three of the caregivers believed that the symptoms were signs of a health problem and most parents justified the holding maneuvers, urgency, urge incontinence and bedwetting as something that occurs because of "laziness" or even "on purpose", because the child does not want to go the bathroom not to be away from their playful activities, as per mentioned in other Brazilian44 Mota DM, Victora CG, Hallal PC. Investigação de disfunção miccional em uma amostra populacional de crianças de 3 a 9 anos. J Pediatr (Rio J) 2005;81:225-32.,55 Mota DM, Barros AJ, Matijasevich A, Santos IS. Prevalence of enuresis and urinary symptoms at age 7 years in the 2004 birth cohort from Pelotas, Brazil. J Pediatr (Rio J) 2015;91:52-8. DOI: http://dx.doi.org/10.1016/j.jped.2014.04.011
http://dx.doi.org/10.1016/j.jped.2014.04...
and Belgium3737 Bakker E, Wyndaele JJ. Changes in the toilet training of children during the last 60 years: the cause of an increase in lower urinary tract dysfunction? BJU Int 2000;86:248-52. studies. In Pernambuco, when parents of children with enuresis were evaluated, mostly did not see enuresis as a disease, leading to not coping with it or delaying in seeking medical care, as well as a low engagement in treatment or following the recommendations of healthcare profissionais.55 Mota DM, Barros AJ, Matijasevich A, Santos IS. Prevalence of enuresis and urinary symptoms at age 7 years in the 2004 birth cohort from Pelotas, Brazil. J Pediatr (Rio J) 2015;91:52-8. DOI: http://dx.doi.org/10.1016/j.jped.2014.04.011
http://dx.doi.org/10.1016/j.jped.2014.04...
In a study in Turkey with children with enuresis, only 11.9% of parents had a history of visits to the doctor concerning the symptoms reported.3838 Gunes A, Gunes G, Acik Y, Akilli A. The epidemiology and factors associated with nocturnal enuresis among boarding and daytime school children in southeast of Turkey: a cross sectional study. BMC Public Health 2009;9:357. DOI: http://dx.doi.org/10.1186/1471-2458-9-357
http://dx.doi.org/10.1186/1471-2458-9-35...

We developed a questionnaire to assess the reaction of caregivers in face of children with symptoms of urgency/urge incontinence/enuresis. Many caregivers reported having yelled and/or hit the child and/or that the child had been subjected to embarrassing situations from them or from other adults, in order to punish the child. These worrisome behaviors confirm again that these children, especially the enuretic ones are victims of domestic and school violence.3939 Sapi MC, Vasconcelos JS, Silva FG, Damião R, Silva EA. Assessment of domestic violence against children and adolescents with enuresis. J Pediatr (Rio J) 2009;85:433-7. DOI: http://dx.doi.org/10.2223/JPED.1935
http://dx.doi.org/10.2223/JPED.1935...
Many of these embarrassing situations reported were used to "teach" a child with urge incontinence and/or enuresis; and the most frequent were: have the children wash their wet clothes and expose the child's problem to friends, family and neighbors.

A study carried out in Turkey with parents of children with enuresis showed higher levels of stress when compared with a control group who had healthy children, as well as the possibility of the child's problem influencing the couple's marital relationship.4040 Tanriverdi MH, Palanci Y, Yilmaz A, Penbegül N, Bez Y, Daggülli M. Effects of enuresis nocturna on parents of affected children: case-control study. Pediatr Int 2014;56:254-7. PMID: 24467519 DOI: http://dx.doi.org/10.1111/ped.12242
http://dx.doi.org/10.1111/ped.12242...

In a study carried out in Rio de Janeiro to assess domestic violence against 132 children with enuresis, 89% suffered some kind of aggression due to episodes of urine leakage. All cases presented verbal punishment with or without other types of aggression. Physical punishment without contact occurred in 50.8% of cases, and with contact in 48.5%. The main aggressor was the mother (87.9%), and, in one case, there was severe genital injury that required reconstructive surgery.3939 Sapi MC, Vasconcelos JS, Silva FG, Damião R, Silva EA. Assessment of domestic violence against children and adolescents with enuresis. J Pediatr (Rio J) 2009;85:433-7. DOI: http://dx.doi.org/10.2223/JPED.1935
http://dx.doi.org/10.2223/JPED.1935...

Assessing the relationship of the children with the school, many said they did not like to go to school and received complaints related to more frequent trips to the bathroom. Relationship problems in schools were also reported in several studies - these patients being more susceptible to behavioral disorders. In Germany, von Gontard et al.4141 von Gontard A, Lettgen B, Olbing H, Heiken-Löwenau C, Gaebel E, Schmitz I. Behavioural problems in children with urge incontinence and voiding postponement: a comparison of a paediatric and child psychiatric sample. Br J Urol 1998;81:100-6. PMID: 9634031 DOI:http://dx.doi.org/10.1046/j.1464-410x.1998.00019.x
http://dx.doi.org/10.1046/j.1464-410x.19...
reported that children with the habit of postponing urination had twice more behavioral problems than children who did not. Among the carriers of urinary incontinence, these problems were seen three to four times more often.

A study carried out in the United States showed that children with urinary tract symptoms had higher scores in the questionnaire for evaluation of bullying victims, the Bullied Index Score.4242 Zhao PT, Velez D, Faiena I, Creenan EM, Barone JG. Bullying has a potential role in pediatric lower urinary tract symptoms. J Urol 2015;193:1743-8. DOI: http://dx.doi.org/10.1016/j.juro.2014.08.123
http://dx.doi.org/10.1016/j.juro.2014.08...
There were also reports of teachers involved in embarrassing behaviors - as the example we mentioned in the case where the patient was forced to clean the classroom floor and the other children were encouraged to laugh at the situation.

Regarding quality of life, in our study there was no comparison with a control group to assess whether there were differences related to LUTS. A study carried out in Slovenia involving children with enuresis showed no difference in QoL; however, they reported a negative influence on the their relationships with friends; these children often tried to hide their urinary disorder, some expressed their grief with low self-esteem, and had worse school performance.4343 Karnicnik K, Koren A, Kos N, Marcun Varda N. Prevalence and quality of life of slovenian children with primary nocturnal enuresis. Int J Nephrol 2012;2012:509012. PMID: 22934181 A study by Lopes et al.,4444 Lopes M, Ferraro A, Dória Filho U, Kuckzinski E, Koch VH. Quality of life of pediatric patients with lower urinary tract dysfunction and their caregivers. Pediatr Nephrol 2011;26:571-7. DOI: http://dx.doi.org/10.1007/s00467010-1744-2
http://dx.doi.org/10.1007/s00467010-1744...
using the Autoquestionnaire Qualité de Vie Enfant Imagé (AUQUEI) showed low quality of life scores in the group of patients with LUTS and problems in dealing with social aspects, such as being in the classroom, as well as manifestation of negative aspects in relation to urinary losses.

In relation to school performance, in accordance with the SPT applied, most children were in the lower level. As our study aimed at doing a case study, we cannot state a relationship between LUTS and worse school performance; furthermore, the sample was from a population with low socioeconomic level and admittedly low quality of public education. A study carried out in Belo Horizonte, in 2013, found that, in general, the performance of private school participants was higher than those students from public schools.4545 Pontes VL, Diniz NLF, Martins-Reis VO. Parâmetros e estratégias de leitura e escrita utilizados por crianças de escolas pública e privada. Rev CEFAC 2013;15:827-36. DOI: http://dx.doi.org/10.1590/S1516-18462013000400011
http://dx.doi.org/10.1590/S1516-18462013...

It is also interesting to note that in our study, poor school performance occurred in a group where the majority was classified as having average intelligence, which leads us to challenge whether the LUTS is related to worse learning. A study conducted in São Paulo pointed out that, comparatively, enuretic children tend to have more language problems than their non-enuretic counterparts, especially speech disorders as the omission of phonemes r/e {R}; and, in general they are quieter,4646 Birenbaum TK, Cunha MC. Oral language disorders and enuresis in children. Pro Fono 2010;22:459-64. it can also be associated to the school performance difficulties found in our study. In a recently conducted study, the authors showed a correlation between LUTS and attention deficit and hyperactivity disorder, which can also explain low school performance in these patients.4747 Burgu B, Aydogdu O, Gurkan K, Uslu R, Soygur T. Lower urinary tract conditions in children with attention deficit hyperactivity disorder: correlation of symptoms based on validated scoring systems. J Urol 2011;185:663-8. DOI: http://dx.doi.org/10.1016/j.juro.2010.09.116
http://dx.doi.org/10.1016/j.juro.2010.09...
,4848 Von Gontard A, Moritz AM, Thome-Granz S, Freitag C. Association of attention deficit and elimination disorders at school entry: a population based study. J Urol 2011;186:2027-32. PMID: 21944132 DOI: http://dx.doi.org/10.1016/j.juro.2011.07.030
http://dx.doi.org/10.1016/j.juro.2011.07...

Regarding quality of life, there was no control group for comparison and we emphasize that in this assessment the school aspect yielded the worst score. Evaluating QoL and SPT, and QoL and the Raven matrices, groups with lower school performance and lower cognitive levels were also related to lower QoL scores. It should be remembered that the sample derived from the population with low income and LUTS certainly would not be the only factor justifying the lower school performance with average cognitive levels. There are social conditions and issues related to the low quality of public education in the country,4545 Pontes VL, Diniz NLF, Martins-Reis VO. Parâmetros e estratégias de leitura e escrita utilizados por crianças de escolas pública e privada. Rev CEFAC 2013;15:827-36. DOI: http://dx.doi.org/10.1590/S1516-18462013000400011
http://dx.doi.org/10.1590/S1516-18462013...
further studies are needed to evaluate this relationship.

Conclusion

LUTS seems to be a factor that can negatively influence aspects of the carrier's daily life, particularly those related to social networks in family and school lives. Therefore, we need a broad approach to the patient, and these children require multidisciplinary monitoring with management not only of the disorder, but also involving psychosocial aspects.

Adults who live with these children, especially teachers, caregivers and healthcare professionals should have access to the information obtained from this and other studies, so that they are aware of what LUTS is and make the diagnosis and early treatment of this children in an expedited manner, preventing them from going through so many difficult and embarrassing situations that are already part of an ancient culture to condemn them and punish them for something that is a symptom of having trouble to control urination, thus reducing the negative impact of this disorder in the lives of their carriers.

We also emphasize that further studies should be carried out, with a larger number of participants in the sample and in other populations so that some biases such as the low quality of public education, and low socioeconomic status do not influence the study results.

Referências

  • 1
    Nevéus T, von Gontard A, Hoebeke P, Hjälmås K, Bauer S, Bower W, et al. The standardization of terminology of lower urinary tract function in children and adolescents: report from the Standardisation Committee of the International Children's Continence Society. J Urol 2006;176:314-24. PMID: 16753432 DOI: http://dx.doi.org/10.1016/S0022-5347(06)00305-3
    » http://dx.doi.org/10.1016/S0022-5347(06)00305-3
  • 2
    Jansson UB, Hanson M, Sillén U, Hellström AL. Voiding pattern and acquisition of bladder control from birth to age 6 years-a longitudinal study. J Urol 2005;174:289-93. PMID: 15947669
  • 3
    Mastrocinque TH. Hipertensão arterial na infância e na adolescência. Aspectos clínicos na infância e na adolescência. In: Toporovski J, Mello VR, Martini Filho D, Benini V, Andrade OVB. Nefrologia Pediátrica. 2a ed. Rio de janeiro: Guanabara Koogan; 2006. p.360-72.
  • 4
    Mota DM, Victora CG, Hallal PC. Investigação de disfunção miccional em uma amostra populacional de crianças de 3 a 9 anos. J Pediatr (Rio J) 2005;81:225-32.
  • 5
    Mota DM, Barros AJ, Matijasevich A, Santos IS. Prevalence of enuresis and urinary symptoms at age 7 years in the 2004 birth cohort from Pelotas, Brazil. J Pediatr (Rio J) 2015;91:52-8. DOI: http://dx.doi.org/10.1016/j.jped.2014.04.011
    » http://dx.doi.org/10.1016/j.jped.2014.04.011
  • 6
    Soares AHR, Moreira MCN, Monteiro LMC, Fonseca EMGO. A enurese em crianças e seus significados para suas famílias: abordagem qualitativa sobre uma intervenção profissional em saúde. Rev Bras Saude Mater Infant 2005;5:301-11.
  • 7
    Calado AA, Araujo EM, Barroso U Jr, Netto JM, Filho MZ, Macedo A Jr, et al. Cross-cultural adaptation of the dysfunctional voiding score symptom (DVSS) questionnaire for Brazilian children. Int Braz J Urol 2010;36:458-63. DOI: http://dx.doi.org/10.1590/S1677-55382010000400009
    » http://dx.doi.org/10.1590/S1677-55382010000400009
  • 8
    Bauer SB. Special considerations of the overactive bladder in children. Urology 2002;60:43-8. DOI: http://dx.doi.org/10.1016/S0090-4295(02)01793-4
    » http://dx.doi.org/10.1016/S0090-4295(02)01793-4
  • 9
    Nijman RJ. Role of antimuscarinics in the treatment of nonneurogenic daytime urinary incontinence in children. Urology 2004;63:45-50. PMID: 15013652 DOI: http://dx.doi.org/10.1016/j.urology.2003.11.004
    » http://dx.doi.org/10.1016/j.urology.2003.11.004
  • 10
    Greenfield SP. The overactive bladder in childhood. J Urol 2000;163:578-9. PMID: 10647688 DOI: http://dx.doi. org/10.1016/S0022-5347(05)67935-9
    » http://dx.doi. org/10.1016/S0022-5347(05)67935-9
  • 11
    Farhat W, Bägli DJ, Capolicchio G, O'Reilly S, Merguerian PA, Khoury A, et al. The dysfunctional voiding scoring system: quantitative standardization of dysfunctional voiding symptoms in children. J Urol 2000;1011-5.
  • 12
    Leclair MD, Héloury Y. Non-neurogenic elimination disorders in children. J Pediatr Urol 2010;6:338-45. DOI:http://dx.doi.org/10.1016/j.jpurol.2010.01.006
    » http://dx.doi.org/10.1016/j.jpurol.2010.01.006
  • 13
    Ural Z, Ulman I, Avanoglu A. Bladder dynamics and vesicoureteral reflux: factors associated with idiopathic lower urinary tract dysfunction in children. J Urol 2008;179:1564-7. DOI: http://dx.doi.org/10.1016/j.juro.2007.11.095
    » http://dx.doi.org/10.1016/j.juro.2007.11.095
  • 14
    Lordêlo P, Teles A, Veiga ML, Correia LC, Barroso U Jr. Transcutaneous electrical nerve stimulation in children with overactive bladder: a randomized clinical trial. J Urol 2010;184:683-9. DOI: http://dx.doi.org/10.1016/j.juro.2010.03.053
    » http://dx.doi.org/10.1016/j.juro.2010.03.053
  • 15
    Vaz GT, Vasconcelos MM, Oliveira EA, Ferreira AL, Magalhães PG, Silva FM, et al. Prevalence of lower urinary tract symptoms in school-age children. Pediatr Nephrol 2012;27:597-603. DOI: http://dx.doi.org/10.1007/s00467-011-2028-1
    » http://dx.doi.org/10.1007/s00467-011-2028-1
  • 16
    Soares AHR, Martins AJ, Lopes MCB, Britto JAA, Oliveira CQO, Moreira MCN. Qualidade de vida de crianças e adolescentes: uma revisão bibliográfica. Ciênc Saúde Coletiva 2011;16:3197-206. DOI: http://dx.doi.org/10.1590/S1413-81232011000800019
    » http://dx.doi.org/10.1590/S1413-81232011000800019
  • 17
    Gomes RC, Cavalcanti BMH, Santos LC, Mello MJG, Ribeiro Neto JPM. Prevalência de distúrbio do trato urinário inferior em crianças atendidas no ambulatório pediátrico de um hospital de ensino. V Congresso Científico do IMIP; 19 Mar 2013; Recife, PE, Brasil.
  • 18
    Rizzini M, Donatti TL, Bergamaschi DP, Brunken GS. Conceptual, item, and semantic equivalence of the Brazilian version of the Dysfunctional Voiding Scoring System (DVSS) instrument for evaluating lower urinary tract dysfunction in children. Cad Saude Pública 2009;25:1743-55.
  • 19
    Filgueiras MFTF, Sanches T, Vasconcelos M, Marino VP, Rabelo EAS, Silva JMP, et al. Diagnóstico da disfunção miccional pela ultrassonografia dinâmica (USD) em crianças e adolescentes vs estudo urodinâmico. J Bras Nefrol 2001;23:8-24.
  • 20
    Filgueiras MF, Lima EM, Sanchez TM, Goulart EM, Menezes AC, Pires CR. Bladder dysfunction: diagnosis with dynamic US. Radiology 2003;227:340-4. PMID: 12676967 DOI: http://dx.doi.org/10.1148/radiol.2272011872
    » http://dx.doi.org/10.1148/radiol.2272011872
  • 21
    Tafuro L, Montaldo P, Iervolino LR, Cioce F, del Gado R. Ultrasonographic bladder measurements can replace urodynamic study for the diagnosis of non-monosymptomatic nocturnal enuresis. BJU Int 2010;105:108-11. DOI: http://dx.doi.org/10.1111/j.1464-410X.2009.08735.x
    » http://dx.doi.org/10.1111/j.1464-410X.2009.08735.x
  • 22
    Associação Brasileira de Empresas e Pesquisa (2011). Critério de classificação econômica Brasil. São Paulo. [Acessado em: 20 de agosto de 2012]. Disponível em: http://www.abep.org/novo/Content.aspx?ContentID=301
    » http://www.abep.org/novo/Content.aspx?ContentID=301
  • 23
    Generic Core Questionnaires (Standard Form) of Measurement Model for the Pediatric Quality of Life Invetory™- Version 4.0 - na sua forma validada no Brasil, o PedsQLInventory™- Versão 4.0 [Cited 2016 Mar 18]. Avaliable from: http://www.pedsql.org/about_pedsql.html
    » http://www.pedsql.org/about_pedsql.html
  • 24
    Stein LM. TED: Teste de desempenho escolar: manual de aplicação. São Paulo: Casa do Psicólogo; 1994.
  • 25
    Angelini AL, Alves ICB, Custódio EM, Duarte WF, Duarte JLM. Matrizes progressivas coloridas de Raven. São Paulo: Centro Editor de Testes e Pesquisas em Psicologia; 1999.
  • 26
    Raven JC. Teste das matrizes progressivas. Escala Geral. 4a ed. Rio de Janeiro: Centro Editor de Psicologia Aplicada; 2008.
  • 27
    Litwin MS. Validity. In: Litwin MS. How to measure survey reliability and validity. 1st ed. Thousand Oaks: Sage publications; 1995. p.33-44.
  • 28
    Koff SA. Evaluation and management of voiding disorders in children. Urol Clin North Am 1988;15:769-75.
  • 29
    Hellström A, Hanson E, Hansson S, Hjälmäs K, Jodal U. Micturition habits and incontinence at age 17--reinvestigation ofa cohort studied at age 7. Br J Urol 1995;76:231-4. PMID: 7663917
  • 30
    Swithinbank LV, Brookes ST, Shepherd AM, Abrams P. The natural history of urinary symptoms during adolescence. Br J Urol 1998;81:90-3. PMID: 9634028 DOI: http://dx.doi. org/10.1046/j.1464-410x.1998.00016.x
    » http://dx.doi. org/10.1046/j.1464-410x.1998.00016.x
  • 31
    Chung JM, Lee SD, Kang DI, Kwon DD, Kim KS, Kim SY, et al. Prevalence and associated factors of overactive bladder in Korean children 5-13 years old: a nationwide multicenter study. Urology 2009;73:63-7. DOI: http://dx.doi.org/10.1016/j.urology.2008.06.063
    » http://dx.doi.org/10.1016/j.urology.2008.06.063
  • 32
    Chiozza ML, Bernardinelli L, Caione P, Del Gado R, Ferrara P, Giorgi PL, et al. An Italian epidemiological multicentre study of nocturnal enuresis. Br J Urol 1998;81:86-9. PMID: 9634027 DOI: http://dx.doi.org/10.1046/j.1464-410x.1998.00015.x
    » http://dx.doi.org/10.1046/j.1464-410x.1998.00015.x
  • 33
    Hellström AL, Hanson E, Hansson S, Hjälmås K, Jodal U. Micturition habits and incontinence in 7-year-old Swedish school entrants. Eur J Pediatr 1990;149:434-7. PMID: 2332015 DOI: http://dx.doi.org/10.1007/BF02009667
    » http://dx.doi.org/10.1007/BF02009667
  • 34
    Sureshkumar P, Craig JC, Roy LP, Knight JF. Daytime urinary incontinence in primary school children: a population-based survey. J Pediatr 2000;137:814-8. PMID: 11113838 DOI: http://dx.doi.org/10.1067/mpd.2000.109196
    » http://dx.doi.org/10.1067/mpd.2000.109196
  • 35
    Koff SA, Wagner TT, Jayanthi VR. The relationship among dysfunctional elimination syndromes, primary vesicoureteral reflux and urinary tract infections in children. J Urol 1998;160:1019-22. DOI: http://dx.doi.org/10.1016/S0022-5347(01)62686-7
    » http://dx.doi.org/10.1016/S0022-5347(01)62686-7
  • 36
    Loening-Baucke V. Urinary incontinence and urinary tract infection and their resolution with treatment of chronic constipation of childhood. Pediatrics 1997;100:228-32. PMID: 9240804 DOI: http://dx.doi.org/10.1542/peds.100.2.228
    » http://dx.doi.org/10.1542/peds.100.2.228
  • 37
    Bakker E, Wyndaele JJ. Changes in the toilet training of children during the last 60 years: the cause of an increase in lower urinary tract dysfunction? BJU Int 2000;86:248-52.
  • 38
    Gunes A, Gunes G, Acik Y, Akilli A. The epidemiology and factors associated with nocturnal enuresis among boarding and daytime school children in southeast of Turkey: a cross sectional study. BMC Public Health 2009;9:357. DOI: http://dx.doi.org/10.1186/1471-2458-9-357
    » http://dx.doi.org/10.1186/1471-2458-9-357
  • 39
    Sapi MC, Vasconcelos JS, Silva FG, Damião R, Silva EA. Assessment of domestic violence against children and adolescents with enuresis. J Pediatr (Rio J) 2009;85:433-7. DOI: http://dx.doi.org/10.2223/JPED.1935
    » http://dx.doi.org/10.2223/JPED.1935
  • 40
    Tanriverdi MH, Palanci Y, Yilmaz A, Penbegül N, Bez Y, Daggülli M. Effects of enuresis nocturna on parents of affected children: case-control study. Pediatr Int 2014;56:254-7. PMID: 24467519 DOI: http://dx.doi.org/10.1111/ped.12242
    » http://dx.doi.org/10.1111/ped.12242
  • 41
    von Gontard A, Lettgen B, Olbing H, Heiken-Löwenau C, Gaebel E, Schmitz I. Behavioural problems in children with urge incontinence and voiding postponement: a comparison of a paediatric and child psychiatric sample. Br J Urol 1998;81:100-6. PMID: 9634031 DOI:http://dx.doi.org/10.1046/j.1464-410x.1998.00019.x
    » http://dx.doi.org/10.1046/j.1464-410x.1998.00019.x
  • 42
    Zhao PT, Velez D, Faiena I, Creenan EM, Barone JG. Bullying has a potential role in pediatric lower urinary tract symptoms. J Urol 2015;193:1743-8. DOI: http://dx.doi.org/10.1016/j.juro.2014.08.123
    » http://dx.doi.org/10.1016/j.juro.2014.08.123
  • 43
    Karnicnik K, Koren A, Kos N, Marcun Varda N. Prevalence and quality of life of slovenian children with primary nocturnal enuresis. Int J Nephrol 2012;2012:509012. PMID: 22934181
  • 44
    Lopes M, Ferraro A, Dória Filho U, Kuckzinski E, Koch VH. Quality of life of pediatric patients with lower urinary tract dysfunction and their caregivers. Pediatr Nephrol 2011;26:571-7. DOI: http://dx.doi.org/10.1007/s00467010-1744-2
    » http://dx.doi.org/10.1007/s00467010-1744-2
  • 45
    Pontes VL, Diniz NLF, Martins-Reis VO. Parâmetros e estratégias de leitura e escrita utilizados por crianças de escolas pública e privada. Rev CEFAC 2013;15:827-36. DOI: http://dx.doi.org/10.1590/S1516-18462013000400011
    » http://dx.doi.org/10.1590/S1516-18462013000400011
  • 46
    Birenbaum TK, Cunha MC. Oral language disorders and enuresis in children. Pro Fono 2010;22:459-64.
  • 47
    Burgu B, Aydogdu O, Gurkan K, Uslu R, Soygur T. Lower urinary tract conditions in children with attention deficit hyperactivity disorder: correlation of symptoms based on validated scoring systems. J Urol 2011;185:663-8. DOI: http://dx.doi.org/10.1016/j.juro.2010.09.116
    » http://dx.doi.org/10.1016/j.juro.2010.09.116
  • 48
    Von Gontard A, Moritz AM, Thome-Granz S, Freitag C. Association of attention deficit and elimination disorders at school entry: a population based study. J Urol 2011;186:2027-32. PMID: 21944132 DOI: http://dx.doi.org/10.1016/j.juro.2011.07.030
    » http://dx.doi.org/10.1016/j.juro.2011.07.030

Publication Dates

  • Publication in this collection
    Apr-Jun 2016

History

  • Received
    15 July 2015
  • Accepted
    27 Oct 2015
Sociedade Brasileira de Nefrologia Rua Machado Bittencourt, 205 - 5ºandar - conj. 53 - Vila Clementino - CEP:04044-000 - São Paulo SP, Telefones: (11) 5579-1242/5579-6937, Fax (11) 5573-6000 - São Paulo - SP - Brazil
E-mail: bjnephrology@gmail.com