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1.
J Urol ; 204(6): 1333-1340, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-32469626

RESUMO

PURPOSE: Bladder-bowel questionnaires are an important tool in diagnosing nonneurogenic bladder-bowel dysfunction in children. We report the validity and reliability of a bladder-bowel questionnaire that has been in clinical use at our institution for decades. MATERIALS AND METHODS: The bladder-bowel questionnaire contains 13 questions, with answers ranging from never (score of 0) to daily (3). The questionnaire was answered by 139 healthy controls and 134 children 3 to 16 years old diagnosed with bladder-bowel dysfunction by a pediatric urologist/urotherapist. A subdiagnosis of overactive bladder or dysfunctional voiding was made in each patient. Bladder-bowel questionnaire scales were developed and evaluated against hypotheses of validity (known groups/convergent/discriminating) and reliability (internal consistency/retest reliability), sensitivity and specificity. Responsiveness was tested in 80 patients who answered the bladder-bowel questionnaire after treatment. RESULTS: A total bladder-bowel dysfunction score scale demonstrated the ability to discriminate between patients with bladder-bowel dysfunction and healthy subjects. It resulted in a ROC curve with AUC of 0.96. The maximized sensitivity was 94% and specificity was 89% for a cutoff score of 7. Two subscales were identified referring to 6 filling phase items and 3 voiding phase items. When tested in patients with overactive bladder and dysfunctional voiding, respectively, multivariable scales performed sufficiently to discriminate between those with and without overactive bladder, and those with and without dysfunctional voiding. All of these scales fulfilled the evaluated requirements for validity and reliability. At 1 year after treatment all scale scores corresponded to patient improvement (p <0.0001), suggesting the bladder-bowel questionnaire can detect clinical change over time. CONCLUSIONS: The bladder-bowel questionnaire is valid and reliable for diagnosing bladder-bowel dysfunction in pediatric patients, and overactive bladder and dysfunctional voiding in those with bladder-bowel dysfunction.


Assuntos
Enteropatias/diagnóstico , Índice de Gravidade de Doença , Bexiga Urinária Hiperativa/diagnóstico , Micção/fisiologia , Adolescente , Estudos de Casos e Controles , Criança , Pré-Escolar , Defecação/fisiologia , Feminino , Voluntários Saudáveis , Humanos , Enteropatias/fisiopatologia , Masculino , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Suécia , Bexiga Urinária Hiperativa/fisiopatologia
2.
J Pediatr Urol ; 20(1): 118-126, 2024 02.
Artigo em Inglês | MEDLINE | ID: mdl-37684195

RESUMO

BACKGROUND: Several publications have reported the coexistence of vesicoureteral reflux (VUR) and bladder dysfunction in children. Whether this dysfunction remains in the longer term is not yet known. OBJECTIVE: This study revisited children who participated in the Swedish Reflux Trial (SRT) with the primary aim of evaluating whether bladder and bowel dysfunction (BBD) in these patients persisted until adolescence. The secondary aim was to evaluate two BBD subgroups, and relations to recurrent urinary tract infections (UTI). STUDY DESIGN: Of the 161 eligible children at SRT study-end, 73 children participated. Their bladder function was evaluated longitudinally using a validated BBD questionnaire with symptom score (cut-off ≥7) and uroflowmetry, at five (T2) and ten years (T3) after study-end. T1 was the SRT study-end. Besides BBD, the sub-diagnoses overactive bladder (OAB) and dysfunctional voiding symptoms (DVS) were calculated from symptom scores. RESULTS: BBD was diagnosed in 37% of children at mean age 3.7 years, which decreased with age to 23% of adolescents (mean age 15.7). DVS and OAB subgroups were equally common at T1, but only DVS was identified at the last follow-up (T3) (p = 0.0008). Recurrent UTIs were seen in 17% at T3 and were more common in patients with BBD (p = 0.038). The gender distribution of BBD also changed, from being equally common at the end of the SRT to affecting mainly adolescent girls at the last follow-up (p = 0.022). Information was available regarding VUR status after repeat VCUGs during follow-up in 22 patients, 12 of them after endoscopic treatment. An improvement in VUR grade was found in the 22, but during follow-up numbers with BBD or UTI did not differ between treated and non-treated groups. DISCUSSION: The prevalence of BBD decreased from 37% at 3-4 years of age to 23% in adolescence, when it was almost exclusively seen in girls. BBD and the subgroup DVS were associated with UTI. Even if epidemiological studies have established a predisposition to bladder symptoms and UTI in girls, little is known about bladder function in adolescents with a history of VUR during the first years of life. One limitation of the study was the number of patients participating. Also, the number of patients with kidney damage was more common in the cohort. CONCLUSION: In this longitudinal follow-up of BBD in children with VUR, the number of children with BBD decreased with age. In adolescence, both BBD and recurrent UTIs mainly affected girls.


Assuntos
Enteropatias , Doenças da Bexiga Urinária , Infecções Urinárias , Refluxo Vesicoureteral , Criança , Feminino , Adolescente , Humanos , Pré-Escolar , Seguimentos , Bexiga Urinária , Suécia/epidemiologia , Refluxo Vesicoureteral/complicações , Refluxo Vesicoureteral/epidemiologia , Refluxo Vesicoureteral/diagnóstico , Infecções Urinárias/epidemiologia , Infecções Urinárias/complicações , Estudos Retrospectivos
3.
J Pediatr Urol ; 17(1): 76.e1-76.e9, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33148455

RESUMO

INTRODUCTION: Neurogenic lower urinary tract dysfunction (LUTD) has been reported in 20-50% of children with anorectal malformations (ARM). As neurogenic LUTD represents an inherent risk of renal deterioration and urinary tract infections, an early diagnosis is important. The gold standard for evaluating neurogenic LUTD involves invasive urodynamic testing but a useful addition should be an easy-to-perform, non-invasive method of screening. OBJECTIVE: In this study, we evaluate non-invasive 4 h voiding observations as a screening method for neurogenic LUTD in ARM children. STUDY DESIGN: Thirty-four patients with ARM, excluding those with perineal fistulas, were evaluated using both 4 h voiding observation and urodynamic testing before and after posterior sagittal anorectoplasty (PSARP) at median ages of 0.3 and 1.1 years. In the urodynamic assessment, the gold standard for neurogenic LUTD, nine children received the diagnosis, eight innate and one post-surgery. RESULTS: Five boys with a high urethral fistula and anomalies of the spinal cord had urodynamically diagnosed neurogenic LUTD, a dysfunction also identified in the 4 h voiding observations. The pattern was characterised both by an increase in the number of voiding and the number of interrupted voiding, urinary leakage and elevated residual urine (Figure). In three girls with a vestibular fistula and tethered cord, an urodynamic investigation identified suspected mild neurogenic LUTD. In the voiding observations, an abnormal voiding pattern was not as obvious in the girls as in the five males. One girl with cloaca showed signs of postsurgical denervation damage, which was easily identified in the 4 h voiding observations (high capacity and elevated residual urine). DISCUSSION: In the present study, gender differences in the severity of dysfunction reflected in the free voiding pattern in infants with ARM and neurogenic LUTD is probably the result of the different underlying causes of neurogenic LUTD in boys and girls. Boys with the condition have a congenital malformation of the caudal part of the spinal cord and girls a tethering of the cord. The most obvious limitation of the study was the low number of patients. Despite this, we consider the results worth reporting, since we found that results in the free voiding observations effectively confirmed what was established in the urodynamic investigations. CONCLUSION: In pre-PSARP patients, 4 h voiding observations can be used to screen for severe neurogenic LUTD requiring attention and treatment. When post-surgical denervation is suspected, the voiding observation is also a good method for indicating the diagnosis.


Assuntos
Malformações Anorretais , Bexiga Urinaria Neurogênica , Criança , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Bexiga Urinaria Neurogênica/diagnóstico , Bexiga Urinaria Neurogênica/etiologia , Micção , Urodinâmica
4.
J Urol ; 179(6): 2407-9, 2008 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-18433781

RESUMO

PURPOSE: In children with spinal dysraphism such as myelomeningocele the relation between muscle mass and body composition varies considerably. Therefore, it is difficult to evaluate the relevance of renal function assessments done with serum creatinine. Since serum cystatin C has been suggested to be independent of body size and composition, this evaluation was compared to chromium(51) edetic acid clearance. MATERIALS AND METHODS: Simultaneous measurements of cystatin C and chromium(51) edetic acid clearance were performed prospectively in 65 patients 2 to 19 years old with spinal dysraphism. RESULTS: Cystatin C values were within the normal range in all patients, while chromium(51) edetic acid clearance was reduced in 10. A significant relation was seen. CONCLUSIONS: Using chromium(51) edetic acid clearance as a gold standard, children with spinal dysraphism and slightly to moderately reduced renal function may remain undiagnosed if cystatin C is used for evaluation.


Assuntos
Radioisótopos de Cromo/sangue , Cistatinas/sangue , Ácido Edético/sangue , Rim/fisiopatologia , Disrafismo Espinal/sangue , Disrafismo Espinal/fisiopatologia , Adolescente , Adulto , Criança , Pré-Escolar , Cistatina C , Feminino , Humanos , Masculino , Estudos Prospectivos
5.
J Pediatr Urol ; 13(2): 139-145, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-27989639

RESUMO

INTRODUCTION: It has been suggested that infants with high-grade vesicoureteral reflux (VUR) have lower urinary tract dysfunction (LUTD) that is characterised by large bladder capacity (BC) and increased post-void residual (PVR). However, most of these infants have normal or small BC in early infancy and develop large capacity during the first year of life. OBJECTIVE: This study aimed to see whether LUTD development during the infant years in children with high-grade VUR could be prevented by early reflux resolution. MATERIALS AND METHODS: For early VUR intervention, endoscopic treatment (ET) was used in a randomised trial comprising 77 infants (55 boys) aged <8 months with VUR grade 4-5 (n = 30/n = 47); 39 were randomised to antibiotic prophylaxis and 38 to ET. Voiding cystourethrogram, free voiding observation (FVO) and renal scintigraphy were performed at baseline and after 1 year. Bladder capacity and PVR were obtained from FVO. LUTD was defined as a BC of ≥150% of expected and a PVR of ≥20 ml. RESULTS: There were no differences in bladder function variables seen between the treatment groups, despite significant differences in VUR resolution. Analysing bladder function related to VUR outcome (VUR grade ≤2 vs grade >2), independent of treatment, showed that VUR grade ≤2 was associated with a smaller BC at 1 year (P = 0.050) (a tendency already seen at baseline) and a lower PVR at baseline (P = 0.010). PVR increased from baseline to 1 year (P = 0.037) in children with grade ≤2 VUR (Summary Table). The group with persistent bilateral grade 5 VUR at 1 year had more abnormal bladder variables compared with other study subjects, with a tendency of larger BC (P = 0.057), higher PVR (P = 0.0073) and more LUTD (P = 0.029) at baseline and a larger BC at 1 year (P = 0.016). In explanatory analyses, using logistic regression, a high PVR at baseline was identified as a predictor of VUR grade >2 (P = 0.046), persistent bilateral grade 5 VUR (P = 0.022), recurrent urinary tract infection (P = 0.034), and only a tendency was seen regarding new renal damage (P = 0.053). CONCLUSION: There was no between-group difference seen in bladder function. In children with VUR resolution at follow-up, independent of treatment, BC decreased, whereas PVR increased. High PVR at baseline was a predictive factor for both non-resolution of high-grade VUR and recurrent urinary tract infection. The results suggest that LUTD cannot be prevented by early VUR resolution, but rather is an important prognostic factor for VUR outcome in both endoscopic and prophylactic treatment.


Assuntos
Cistoscopia/métodos , Bexiga Urinária/fisiopatologia , Infecções Urinárias/terapia , Refluxo Vesicoureteral/complicações , Antibioticoprofilaxia , Intervalos de Confiança , Cistografia/métodos , Feminino , Seguimentos , Humanos , Lactente , Sintomas do Trato Urinário Inferior/diagnóstico por imagem , Sintomas do Trato Urinário Inferior/etiologia , Sintomas do Trato Urinário Inferior/terapia , Masculino , Valor Preditivo dos Testes , Estudos Prospectivos , Medição de Risco , Índice de Gravidade de Doença , Fatores Sexuais , Estatísticas não Paramétricas , Suécia , Resultado do Tratamento , Infecções Urinárias/diagnóstico por imagem , Infecções Urinárias/etiologia , Urodinâmica , Urografia/métodos , Procedimentos Cirúrgicos Urológicos/métodos , Refluxo Vesicoureteral/diagnóstico por imagem , Refluxo Vesicoureteral/fisiopatologia
6.
J Pediatr Urol ; 11(1): 30.e1-6, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25697980

RESUMO

OBJECTIVES: It has been suggested that infants with dilating vesicoureteral reflux (VUR) often have lower urinary tract (LUT) dysfunction. Signs such as high voiding pressure levels, low bladder capacity and dyscoordination at voiding have previously been thought to be indicative of dysfunction. However, these findings have also been recognised in healthy infants and are, thus, not specific to dysfunction in this age group. The urodynamic findings of interest for LUT dysfunction in children with high-grade VUR have been shown to be high bladder capacity with incomplete emptying, and often with overactivity during filling. Because the bladders in children with VUR are often only investigated with voiding cystourethrography (VCUG) and not urodynamics, the question has arisen as to whether some of the urodynamic findings indicating dysfunction can be recognised as radiological signs. The aim of the present study was to evaluate whether cystometric signs of LUT dysfunction in infants with high-grade VUR could be recognised in VCUG. MATERIALS AND METHODS: One hundred and fifteen infants (80 boys) with Grades III-V VUR were included and investigated repeatedly with videocystometry (VCM) at a median age 6, 21 and 39 months. The sign looked for in the VCUG was bladder size (large, normal or small), according to the chosen levels in the bony pelvis. To validate the chosen levels for the different bladder sizes, bladder capacity data from a longitudinal study in healthy children were used. In addition, abnormalities in bladder wall/form and filling of the posterior urethra without voiding, as signs of bladder overactivity and detrusor-sphincter dyscoordination, were evaluated. RESULTS: Bladder size was estimated on VCUG as large, normal or small, according to pelvic landmarks. Large bladder size was mainly seen at the second and third evaluations (64% and 46%), whereas small capacity was mainly seen during the first year (33%). Corresponding cystometric capacities (ml) showed a significant difference between the groups of small, normal and large bladder size. The cystometric capacities of large and small bladder size were also compared with bladder capacity in healthy controls, where large had significantly higher bladder capacity versus age (P = 0.0001) and small had significantly lower (P = 0.011) bladder capacity versus age than in the healthy controls. Bladder shape/wall pathology was mainly seen during the first year (42%), combined with small capacity, and correlated to overactive contractions during filling. Moreover, filling of the posterior urethra without voiding, indicating detrusor/sphincter dyscoordination at voiding, was quite common during the first year (33%), and then successively decreased. CONCLUSIONS: The clinical implication from this study of small children with high-grade VUR was that a large bladder on VCUG was synonymous with a high-capacity bladder. According to earlier studies, this is a sign of LUT dysfunction in this age group and should therefore be an indicator for additional studies of bladder function. Overactive contractions could also be recognised in VCUG, but only at the infant evaluation, which should also be regarded as an indicator of LUT dysfunction. All other bladder VCUG signs mainly seen during early infancy were signs of immature bladder function and not a result of VUR dysfunction.


Assuntos
Sintomas do Trato Urinário Inferior/diagnóstico por imagem , Sintomas do Trato Urinário Inferior/fisiopatologia , Refluxo Vesicoureteral/diagnóstico por imagem , Refluxo Vesicoureteral/fisiopatologia , Fatores Etários , Pré-Escolar , Feminino , Humanos , Lactente , Estudos Longitudinais , Sintomas do Trato Urinário Inferior/etiologia , Masculino , Micção/fisiologia , Urodinâmica/fisiologia , Urografia , Refluxo Vesicoureteral/complicações , Gravação em Vídeo
7.
Naunyn Schmiedebergs Arch Pharmacol ; 330(3): 175-8, 1985 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-2414673

RESUMO

Cystometric recordings were performed in pentobarbitone anaesthetized rats and the effects of baclofen on urinary bladder function were evaluated as their influence on bladder hyperactivity induced by 1-dihydroxyphenylalanine (L-dopa) after peripheral decarboxylase inhibition. The bladder response was inhibited by intracerebroventricularly (i.c.v., 4th ventricle, 0.1 microgram) as well as by systemically administered (10 mg/kg i.v.) baclofen. Intravenous naloxone but not i.v. bicuculline i.c.v. substance P or i.c.v. glutamate antagonized the inhibitory actions of i.c.v. or/and i.v. baclofen. It is suggested that baclofen depresses the hyperactive bladder by a central action that is unrelated to bicuculline sensitive gamma aminobutyric acid mechanisms, substance P or glutamate neurotransmission but that is possibly related to interference with opioid mechanisms.


Assuntos
Baclofeno/farmacologia , Levodopa/farmacologia , Bexiga Urinária/efeitos dos fármacos , Animais , Inibidores das Descarboxilases de Aminoácidos Aromáticos , Baclofeno/administração & dosagem , Bicuculina/farmacologia , Glutamatos/farmacologia , Ácido Glutâmico , Injeções Intraventriculares , Masculino , Naloxona/farmacologia , Ratos , Ratos Endogâmicos , Substância P/farmacologia , Ácido gama-Aminobutírico/fisiologia
8.
Naunyn Schmiedebergs Arch Pharmacol ; 314(2): 195-200, 1980 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-6256670

RESUMO

Cystometric recordings were performed in pentobarbitone anaesthetized rats and the effects of gammaaminobutyric acid (GABA) mechanisms on urinary bladder function were evaluated as their influence on a bladder hyperactivity induced by 1-dihydroxyphenylalanine (L-DOPA) after peripheral decarboxylase inhibition. The bladder response was inhibited by intracerebroventricular (i.c.v., 4th ventricle) injections of GABA (250 microgram), muscimol (0.2 microgram) and glycine (1,000 microgram) as well as by systemically administered muscimol (4 mg/kg) and diazepam (2 mg/kg). Intravenous (i.v.) bicuculline, but not i.v. strychnine, antagonized the inhibitory actions of intraperitoneal (i.p.) and i.c.v. muscimol and i.v. diazepam while the opposite was true for the inhibitory action of i.c.v. glycine. In rats not pretreated with L-DOPA, i.p. administration of bicuculline (4 mg/kg) after 15 min caused prominent detrusor contractions that were prevented by an infracollicular brain transection. It is suggested that GABA synapses in the pontinemesencephalic brain region may be involved in the modulation of urinary bladder function.


Assuntos
Receptores de Superfície Celular/fisiologia , Bexiga Urinária/fisiologia , Ácido gama-Aminobutírico/fisiologia , Animais , Bicuculina/farmacologia , Diazepam/farmacologia , Glicina/farmacologia , Levodopa/farmacologia , Masculino , Muscimol/farmacologia , Contração Muscular/efeitos dos fármacos , Ratos , Bexiga Urinária/efeitos dos fármacos , Ácido gama-Aminobutírico/farmacologia
9.
J Pediatr Surg ; 23(9): 805-9, 1988 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-3183892

RESUMO

This report reviews 16 years' experience in the management of patients with esophageal atresia (EA) and tracheoesophageal fistula (TEF), with special emphasis on long-term results and early complications in relation to the magnitude of the gap between the esophageal segments. In 94 infants with no or moderate distance between the esophageal ends (less than 2 cm), an end-to-end anastomosis was performed in 90 cases after closing the TEF. In 51 of the 90 patients, no complications were seen (57%), whereas in the remaining 39, postoperative complications were noted with anastomotic leakage (24 patients, 26%), anastomotic stricture (16 patients, 18%) and gastroesophageal reflux (5 patients, 5%). Sixteen patients (9 with and 7 without TEF) had a "long gap" between the esophageal segments (greater than 2 cm). Thirteen (9 with and 4 without TEF) of these 16 patients were subjected to an end-to-end anastomosis, 11 primarily and two secondarily after 3 and 12 weeks, respectively. All 13 patients with an end-to-end anastomosis had anastomotic leakage (100%)--nine had stricture (75%) and 5 had gastroesophageal reflux (50%). The remaining three patients in this long-gap group were subjected to colon transposition, two primarily and one secondarily. The total mortality rate decreased from 19/57 patients (33%) from 1969 to 1977, to 5/53 (9%) from 1978 to 1984. The main cause of death in both periods was associated anomalies (18% and 7%, respectively), whereas deaths related to the EA malformation as such had almost disappeared during the latter period (15% and 2%, respectively).(ABSTRACT TRUNCATED AT 250 WORDS)


Assuntos
Atresia Esofágica/cirurgia , Feminino , Humanos , Recém-Nascido , Masculino , Complicações Pós-Operatórias , Fístula Traqueoesofágica/cirurgia
10.
Acta Paediatr Suppl ; 88(431): 40-7, 1999 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-10588270

RESUMO

Vesico-ureteric reflux and non-neurogenic bladder dysfunction are closely related, although a causal relationship has been established only for severe forms of detrusor-sphincter dyscoordination. There are several urodynamic studies reporting high frequency of bladder instability and/or detrusor-sphincter dyscoordination in children with reflux. The latter includes an element of functional outflow obstruction and is the most serious, since it accompanies kidney damage. When instability is the only urodynamic abnormality damage is absent. There are indications that treatment of bladder dysfunction increases spontaneous resolution of reflux and, furthermore, that bladder dysfunction is a negative prognostic factor following antireflux surgery. Recently also, gross reflux in infant boys was seen to associate with bladder dysfunction in addition to earlier finding of congenital malformation of the ureterovesical junction. However, no comparisons have emerged on the outcome following treatment of bladder dysfunction and following observation only. In conclusion, children with reflux on chemoprophylaxis prior to reimplantation must always be assessed for bladder dysfunction. This is especially important when there are recurrent urinary tract infections.


Assuntos
Doenças da Bexiga Urinária/complicações , Refluxo Vesicoureteral/complicações , Criança , Humanos , Lactente , Nefropatias/etiologia , Masculino , Bexiga Urinária/fisiopatologia , Doenças da Bexiga Urinária/diagnóstico , Doenças da Bexiga Urinária/epidemiologia , Doenças da Bexiga Urinária/fisiopatologia , Doenças da Bexiga Urinária/terapia , Urodinâmica/fisiologia
11.
Lakartidningen ; 98(28-29): 3216-9, 2001 Jul 11.
Artigo em Sueco | MEDLINE | ID: mdl-11496810

RESUMO

The time when we start potty training has become increasingly postponed. This paper discusses the possible negative consequences of this social situation. Depending on the child's maturity, bladder control could be defined as anything from "continence with support of an adult before the age of one year" to "independent social control, unobtainable in our culture before the child is 4 years of age". In toddlers suffering from bladder dysfunction, the impact of potty training improves bladder emptying, decreasing residual urine and resultant urinary tract infection. In toddlers with anatomical and functional anomalies of the urinary tract, early potty training is recommended.


Assuntos
Treinamento no Uso de Banheiro , Bexiga Urinária/fisiopatologia , Infecções Urinárias/prevenção & controle , Adulto , Fatores Etários , Pré-Escolar , Humanos , Lactente , Cuidado do Lactente/psicologia , Pais/psicologia , Fatores de Risco , Micção/fisiologia
12.
Artigo em Inglês | MEDLINE | ID: mdl-6112793

RESUMO

Central neurotransmitter systems have been activated in anaesthetized rats, while the effects on the urinary bladder have been recorded by cystometric procedures. Stimulation of central catecholamine neurons with the amine precursor L-3,4-dihydroxyphenylalanine (L-DOPA), after peripheral inhibition of the degradating enzyme dopadecarboxylase, resulted in a hyperactive urinary bladder response. This bladder action seems to be elicited mainly via central dopamine receptors, and mediated via neurons of non-catecholamine type. Activation of central muscarinic receptors with oxotremorine, after pretreatment with methylscopolamine, induced a hyperactive urinary bladder response, which is suggested to originate in pontine-mesencephalic structures as well. There might in some instances be an interaction with muscarinic receptors in the generation of the bladder hyperreactivity to L-DOPA, at the pontine-mesencephalic brain level. The bladder response to stimulation of central muscarinic receptors, on the other hand, seems to be independent of intact adrenergic neurons. The peripheral mediation of the bladder response to L-DOPA is propagated via the pelvic nerves; in the peripheral ganglia via cholinergic receptors, but in the bladder detrusor via non-cholinergic as well as non-adrenergic receptors. Activation of central GABA mechanisms with GABA, muscimol and diazepam strongly inhibited the bladder hyperactivity to L-DOPA. This inhibition probably occurred in the pontine-mesencephalic brain area. The results suggest that excitatory dopaminergic and muscarinic receptors, as well as inhibitory gabaergic receptors in the pontine-mesencephalic brain region, are involved in the modulation of the urinary bladder function.


Assuntos
Neurotransmissores/fisiologia , Bexiga Urinária/inervação , Animais , Encéfalo/efeitos dos fármacos , Diazepam/farmacologia , Levodopa/farmacologia , Masculino , Modelos Biológicos , Muscimol/farmacologia , N-Metilescopolamina , Oxotremorina/farmacologia , Ratos , Receptores de Superfície Celular/efeitos dos fármacos , Receptores Dopaminérgicos/efeitos dos fármacos , Receptores de GABA-A , Receptores Muscarínicos/efeitos dos fármacos , Derivados da Escopolamina/farmacologia
13.
J Pediatr Urol ; 10(6): 1100-5, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24881806

RESUMO

BACKGROUND: The aim of the present study was to investigate whether addition of transcutaneous electrical nerve stimulation (TENS) treatment improves the results of standard urotherapy in children with overactive bladder (OAB) symptoms. MATERIAL AND METHODS: Sixty-two children with symptoms of OAB and incontinence were included. The children were randomized either to standard urotherapy treatment alone or a combination of standard urotherapy and TENS. The effect variables were taken from a voiding-drinking diary: number of voiding, number of incontinence episodes, and maximum voided volume. RESULTS: Both treatment groups had good treatment results, with no significant difference between the groups. In the standard treatment group 13/28 (46%) were completely dry and 11/28 (40%) had a decrease in incontinence episodes, compared to 16/24 (67%) and 3/24 (13%), respectively, in the standard+TENS group (p=0.303). The number of voiding decreased in two-thirds of the patients in both groups. However, maximal voided volume only increased in the standard treatment group. Subjectively 72% and 80% considered themselves significantly improved or free of symptoms. Previous treatment was registered in 15/55 (27%). All efficacy variables decreased in those with previous treatment, but with no difference between the standard and standard+TENS treatment groups. The only difference noted was when comparing the children without previous treatment in the groups: a significantly higher proportion were completely dry in the TENS group (12/18 [71%] versus 10/22 [48%], p=0.05). CONCLUSION: Our results showed no significant difference overall in treatment response to OAB symptoms between urotherapy only and urotherapy+TENS, whereas a tendency to difference was found in children without previous treatment. Thus with good urotherapy support, TENS only seems to have marginal additional effects on OAB symptoms.


Assuntos
Estimulação Elétrica Nervosa Transcutânea/métodos , Bexiga Urinária Hiperativa/terapia , Micção/fisiologia , Criança , Pré-Escolar , Feminino , Seguimentos , Humanos , Masculino , Resultado do Tratamento , Bexiga Urinária Hiperativa/fisiopatologia
14.
Acta Physiol (Oxf) ; 207(1): 85-92, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23088436

RESUMO

This review aims to provide researchers and clinicians involved with the adult lower urinary tract with background knowledge regarding the early development of bladder function and its most common disturbances in childhood. Bladder development begins in weeks 4-6 and the detrusor muscle is formed during weeks 9-12 of gestation. Higher CNS centres are involved in micturition at birth, and the infant usually wakes up, at least briefly, to void. Voiding during the first years of life is often incomplete, owing to detrusor-sphincter dyscoordination, but this disappears when bladder control is attained. Approximately 5-10% of 7-year-old children suffer from daytime incontinence and/or nocturnal enuresis, and a few per cent of them will not outgrow it. Daytime incontinence in childhood is usually attributable to detrusor overactivity, although it is unclear to what extent it is the detrusor or the micturition reflex per se that is overactive. Enuresis - nocturnal incontinence - is caused by either nocturnal polyuria and/or nocturnal detrusor overactivity, in both cases combined with high arousal thresholds. Bladder problems in childhood constitute a risk factor for the development or persistence of bladder problems in adulthood.


Assuntos
Enurese/fisiopatologia , Bexiga Urinária/crescimento & desenvolvimento , Bexiga Urinária/fisiologia , Incontinência Urinária/fisiopatologia , Urodinâmica/fisiologia , Humanos , Lactente , Recém-Nascido , Bexiga Urinária/embriologia
15.
J Pediatr Urol ; 9(6 Pt A): 700-6, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23759503

RESUMO

OBJECTIVES: To study outcomes of early potty training in a population of healthy children with a tradition of early potty training and to compare these findings with a group of children to whom potty training was applied later. SUBJECTS AND METHODS: Mothers and their 47 healthy children in Vietnam participated in this longitudinal study. The voiding pattern and emptying ability were followed by the 4-h voiding observation method from 3 months to 3 years of age. A comparison is made with a group of 57 Swedish children investigated in a similar manner. RESULTS: In the group of Vietnamese children, 89% were on daily potty training at the age of 6 months. At the age of 24 months, potty training was complete for 98%. In the Swedish group, just a few (5%) had started daily potty training by the age of 24 months (p < 0.001). The Vietnamese group had fewer voidings and lower voided volumes than the Swedish group. In the Vietnamese children, bladder emptying could be regarded as having been completed, with no residual urine at 9 months, compared with the Swedish group, which first showed complete emptying at the age of 36 months. CONCLUSION: Potty training performed daily affects the emptying ability positively. In the Vietnamese group, no residual urine was found at the age of 9 months. These results differ significantly from those of the group of Swedish children.


Assuntos
Treinamento no Uso de Banheiro , Bexiga Urinária/fisiologia , Micção/fisiologia , Fatores Etários , Pré-Escolar , Comparação Transcultural , Feminino , Humanos , Lactente , Masculino , Valores de Referência , Suécia , Vietnã
16.
Eur J Pediatr Surg ; 21(2): 94-8, 2011 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-21283959

RESUMO

INTRODUCTION: Dysphagia is not unusual following repair of esophageal atresia (EA). The lack of a uniform definition has led to a variance when it comes to reporting the prevalence of dysphagia among patients operated on for EA. Our aim is to estimate the occurrence and degree of dysphagia, using a numerical score with its statistical versatility independent of a specific definition. The results are used to find early risk factors of dysphagia within this patient group. The results are also used to see whether we can find a correlation between dysphagia and symptoms of gastroesophageal reflux (GER) and quality of life (QoL). METHODS: 79 consecutive survivors operated on for EA in Gothenburg between 1968 and 1983 were located. Hospital charts were reviewed and patients received questionnaires on dysphagia, symptoms of GER and QoL. Dysphagia was measured by a numerical score, symptoms of GER were extracted using a predetermined questionnaire (GerdQ), and QoL was determined using the generic questionnaire SF-36. RESULTS: 73 patients (92.4%) returned the questionnaires. In order to make the study group as homogeneous as possible with regard to the malformation we choose to study the 63 patients representing the vast majority: those with Gross type C. 36 patients (57%) had symptoms of dysphagia to varying degrees. We did not find any aggravating factors in their hospital charts nor did we find any correlation to the most recent demographics. There was a significant difference in dysphagia scores when we compared Gross type C to the often more complex type A (p<0.05). We did not find any correlation to heartburn but a strong correlation to regurgitation with an OR of 2.8 (95% CI: 1.2-6.6). The QoL was good for this patient group, and we did not find any correlation between QoL and the dysphagia score. CONCLUSIONS: The dysphagia score provides easy-to-use results when it comes to evaluating the potential influence of dysphagia. Dysphagia is common within this patient group. Patients operated on for EA Gross type A seem to do worse when it comes to dysphagia. Regurgitation is associated with dysphagia, which could imply that GER is an aggravating factor. Further studies to support this finding will show whether there is a correlation between the dysphagia score and the results of 24-h pH-monitoring. If so, this could mean that treating GER might decrease dysphagia, at least in this patient group.


Assuntos
Transtornos de Deglutição/etiologia , Atresia Esofágica/cirurgia , Qualidade de Vida , Adulto , Deglutição , Transtornos de Deglutição/epidemiologia , Transtornos de Deglutição/psicologia , Atresia Esofágica/complicações , Atresia Esofágica/epidemiologia , Feminino , Seguimentos , Humanos , Incidência , Recém-Nascido , Masculino , Prevalência , Estudos Retrospectivos , Inquéritos e Questionários , Fatores de Tempo , Resultado do Tratamento
18.
J Urol ; 178(3 Pt 1): 1053-5, 2007 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-17632181

RESUMO

PURPOSE: We evaluated the rate of complications associated with catheterization and the risk of urethral lesions in girls with myelomeningocele treated with clean intermittent catheterization for a minimum of 10 years. MATERIALS AND METHODS: We examined the medical records of 31 females with myelomeningocele followed from the start of clean intermittent catheterization until age 11 to 20 years. Catheterization had been performed for a median of 15 years (range 10 to 19). Altogether, catheterization was used for a total of 459 patient-years. Noncoated polyvinyl chloride catheters were used in all cases. Anticholinergic treatment was given during 176 of the patient-years. RESULTS: Complications of catheterization were recorded in 13 patients on 20 occasions. Macroscopic hematuria was seen in 4 individuals. In 2 patients the hematuria was caused by urethral polyps that were cured by resection. Difficulties with catheterization occurred in 12 patients. The problems were solved by temporary use of lubrication or by other minor changes in management. There were no difficulties recorded after puberty. The risk of difficulties at catheterization doubled with the use of a Ch8 to Ch10 catheter compared to a Ch12 or larger catheter, and doubled during assisted clean intermittent catheterization compared to clean intermittent self-catheterization. CONCLUSIONS: There were remarkably few problems associated with clean intermittent catheterization in these females with myelomeningocele, despite long treatment periods and use of noncoated polyvinyl chloride catheters. Clean intermittent self-catheterization and large size catheters were associated with few complications.


Assuntos
Meningomielocele/complicações , Bexiga Urinaria Neurogênica/terapia , Cateterismo Urinário/efeitos adversos , Adolescente , Adulto , Cateterismo , Criança , Pré-Escolar , Feminino , Humanos , Cloreto de Polivinila , Autocuidado , Bexiga Urinaria Neurogênica/etiologia
19.
J Urol ; 177(1): 325-9; discussion 329-30, 2007 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-17162079

RESUMO

PURPOSE: We investigated whether the treatment of bladder dysfunction in infants with congenital high grade vesicoureteral reflux could influence the spontaneous resolution rate of the reflux and the number of recurrent urinary tract infections. MATERIALS AND METHODS: A total of 115 infants with high grade vesicoureteral reflux were included in a followup study of bladder function and reflux resolution between 1993 and 1999. The present study deals with 20 of these infants with mainly grade V reflux, most of whom had recurrent urinary tract infections in combination with high post-void residual and high bladder capacity. Treatment with clean intermittent catheterization was instituted during infancy in these 20 patients and continued until a median age of 4 years. RESULTS: Bladder capacity was high at presentation and at all followup investigations in the clean intermittent catheterization treated group. Moreover, residual urine was high at presentation and especially between ages 1 and 2 years. However, after bladder control was achieved this residual decreased and consisted mainly of reflux urine. In only 1 girl did reflux resolve spontaneously during the 4-year followup period. A total of 18 patients were treated surgically at the end of this period, and clean intermittent catheterization could be stopped a few months later in all but 2. Urinary tract infection recurrences were uncommon after the institution of treatment. CONCLUSIONS: The treatment of bladder dysfunction characterized by a high capacity bladder with poor emptying in infants with congenital high grade reflux does not influence the rate of spontaneous resolution. On the other hand, the tendency toward recurrent urinary tract infections appears to decrease with treatment.


Assuntos
Doenças da Bexiga Urinária/etiologia , Doenças da Bexiga Urinária/terapia , Cateterismo Urinário , Refluxo Vesicoureteral/complicações , Refluxo Vesicoureteral/cirurgia , Criança , Pré-Escolar , Feminino , Seguimentos , Humanos , Lactente , Recém-Nascido , Masculino , Remissão Espontânea
20.
J Urol ; 175(2): 704-8; discussion 708, 2006 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-16407033

RESUMO

PURPOSE: We determine by ultrasonography the range of dT in carefully treated and followed children with myelomeningocele, and evaluate the role of such measurements for the understanding of bladder abnormalities in these patients. MATERIALS AND METHODS: We studied 66 children and young adults with MMC (34 males and 32 females, median age 8.1 years, range 1.1 to 20.1). Detrusor thickness was measured with a previously established ultrasonographic technique and the results were compared to those in normal children. The variation in detrusor thickness with degree of bladder dysfunction as well as with bladder wall trabeculation, kidney function and anticholinergic treatment was studied. RESULTS: The detrusor of the ventral wall was slightly thinner in children with MMC compared to normal. No significant variation in dT was found for different degrees of bladder dysfunction, bladder wall trabeculation, kidney function or anticholinergic treatment. Boys had thicker detrusor of the ventral wall than girls. CONCLUSIONS: Children with MMC, followed closely and treated according to international standards, do not acquire detrusor thickening as measured by ultrasonography. The detrusor thickness did not correlate with the degree of bladder dysfunction or renal function, or with anticholinergic treatment. Bladder wall trabeculation at VCU was not associated with bladder wall thickening on ultrasonography. We postulate that in a closely monitored and actively treated population of patients with MMC muscular hypertrophy and the development of connective tissue in the bladder wall is kept to a minimum.


Assuntos
Meningomielocele/complicações , Bexiga Urinária/diagnóstico por imagem , Bexiga Urinária/patologia , Adolescente , Adulto , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Ultrassonografia
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