Resumo Objetivo Comparar os resultados da uroterapia padrão isolada e associada ao treinamento dos músculos do assoalho pélvico isoladamente e em combinação com a oxibutinina no tratamento da enurese noturna não monossintomática. Métodos Trinta e oito crianças entre 5 e 10 anos de idade foram randomizadas em três grupos: Grupo I (n=12) realizou uroterapia padrão; Grupo II (n=15) realizou uroterapia padrão associada ao treinamento muscular do assoalho pélvico; e Grupo III (n=11) realizou uroterapia padrão associada ao treinamento muscular do assoalho pélvico e oxibutinina. O tratamento teve duração de 12 semanas. Os instrumentos de avaliação foram diário miccional lúdico e diário miccional de 48 horas, antes e depois do tratamento. Após 2 anos, os pacientes foram avaliados por telefone, usando um questionário padronizado. Resultados Os dados das crianças dos três grupos eram homogêneos no início do estudo. Após 12 semanas de tratamento, todas as crianças apresentaram melhora em relação aos sinais e sintomas de enurese noturna não monossintomática, mas as diferenças não foram significativas entre os grupos. Depois de 2 anos, os resultados do tratamento se mantiveram nos três grupos, mas não houve diferenças entre os grupos. Conclusão As três modalidades de tratamento foram eficazes na melhora da enurese e dos sintomas do trato urinário inferior, mas o tamanho da amostra não foi grande o suficiente para mostrar diferenças entre os grupos.

Abstract Objective To compare the results of the standard urotherapy alone and associated with pelvic floor muscle training alone, and in combination with oxybutynin in treatment of nonmonosymptomatic nocturnal enuresis. Methods A total of 38 children aged 5 to 10 years were randomized into three groups: Group I (n=12) that was submitted to standard urotherapy; Group II (n=15), standard urotherapy associated with pelvic floor muscle training; and Group III (n=11), standard urotherapy associated with pelvic floor muscle training and oxybutynin; the treatment lasted 12 weeks. The assessment tools used were playful bladder diary, and a 48-hour bladder diary, before and after treatment. After 2 years, patients were assessed by telephone using a standardized questionnaire. Results The data of children from the three groups were homogeneous at baseline. After 12-week treatment, all children showed improved symptoms and signs of nonmonosymptomatic nocturnal enuresis, but the differences were not significant among the groups. After 2 years, the three groups showed maintenance of treatment results, but no differences among them. Conclusion All treatment modalities were effective regarding improved enuresis and lower urinary tract symptoms, but the sample was not large enough to show differences among groups.

RESUMO Objetivo Comparar prospectivamente os resultados de injeções intradetrusoras de onabotulinumtoxinA e oxibutinina oral em pacientes com hiperatividade neurogênica do detrusor devido à lesão da medula espinhal, para avaliar a continência urinária, os parâmetros urodinâmicos e a qualidade de vida. Métodos Pacientes adultos em cateterismo intermitente foram randomizados 1:1 para tratamento com uma injeção de onabotulinumtoxinA 300U ou oxibutinina 5mg via oral, três vezes por dia. O desfecho primário foi alteração nos episódios de incontinência urinária em 24 horas, e os secundários foram capacidade cistométrica máxima, pressão máxima do detrusor, complacência vesical e qualidade de vida antes da randomização e na 24ª semana. Resultados Participaram do estudo 68 pacientes. Observou-se melhora significativa na incontinência urinária por 24 horas em todos os parâmetros urodinâmicos investigados e na qualidade de vida em ambos os grupos. Em comparação com a oxibutinina oral, a onabotulinumtoxinA foi significativamente mais eficaz para todos os parâmetros investigados. A falha no tratamento foi maior para oxibutinina oral (23,5%) em comparação com onabotulinumtoxinA (11,8%). A boca seca foi o evento adverso mais comum em pacientes tratados com oxibutinina oral (72%), e a hematúria macroscópica transitória naqueles tratados com onabotulinumtoxinA (28%). Apenas um paciente tratado com oxibutinina oral interrompeu o estudo por conta dos efeitos adversos. Conclusão A comparação dos dois fármacos do estudo mostrou que onabotulinumtoxinA foi significativamente mais eficaz que oxibutinina oral em relação a continência, parâmetros urodinâmicos e qualidade de vida. Clinicaltrials.gov: NCT:01477736.

ABSTRACT Objective To prospectively compare the results of intradetrusor onabotulinumtoxinA injections and oral oxybutynin for urinary continence, urodynamic parameters and quality of life in patients with neurogenic detrusor overactivity due to spinal cord injury. Methods Adult patients under intermittent catheterization were randomized 1:1 to receive one injection of onabotulinumtoxinA 300U or oxybutynin 5mg, per oris, three times/day. Primary study endpoint was change in urinary incontinence episodes/24 hours and secondary study endpoints were maximum cystometric capacity, maximum detrusor pressure, bladder compliance and quality of life before randomization and at week 24. Results Sixty-eight patients participated in the trial. Significant improvements in urinary incontinence per 24 hours, all investigated urodynamic parameters and quality of life were observed in both groups. Compared with oral oxybutynin, onabotulinumtoxinA was significantly more efficacious for all parameters investigated. Non-response to treatment was higher for oral oxybutynin (23.5%) than onabotulinumtoxinA (11.8%). Dry mouth was the most common adverse in patients with oral oxybutynin (72%) and transient macroscopic hematuria in patients with onabotulinumtoxinA (28%). Only one patient with oral oxybutynin dropped out the study because of adverse effects. Conclusion The comparison of the two study drugs showed that onabotulinumtoxinA was significantly more efficacious than oral oxybutynin with regard to continence, urodynamic parameters and quality of life. Clinicaltrials.gov: NCT:01477736.

ABSTRACT Purpose To investigate the lower urinary tract changes in mice treated with L-NAME, a non-selective competitive inhibitor of nitric oxide synthase (NOS), or aminoguanidine, a competitive inhibitor of inducible nitric oxide synthase (iNOS), after 5 weeks of partial bladder outlet obstruction (BOO), in order to evaluate the role of constitutive and non-constitutive NOS in the pathogenesis of this experimental condition. Materials and Methods C57BL6 male mice were partially obstructed and randomly allocated into 6 groups: Sham, Sham + L-NAME, Sham + aminoguanidine, BOO, BOO + L-NAME and BOO + aminoguanidine. After 5 weeks, bladder weight was obtained and cystometry and tissue bath contractile studies were performed. Results BOO animals showed increase of non-voiding contractions (NVC) and bladder capacity, and also less contractile response to Carbachol and Electric Field Stimulation. Inhibition of NOS isoforms improved bladder capacity and compliance in BOO animals. L-NAME caused more NVC, prevented bladder weight gain and leaded to augmented contractile responses at muscarinic and electric stimulation. Aminoguanidine diminished NVC, but did not avoid bladder weight gain in BOO animals and did not improve contractile responses. Conclusion It can be hypothesized that chronic inhibition of three NOS isoforms in BOO animals leaded to worsening of bladder function, while selective inhibition of iNOS did not improve responses, what suggests that, in BOO animals, alterations are related to constitutive NOS.

Introduction Urinary incontinence remains a major concern for patients undergoing radical prostatectomy. Its prevalence can reach 20% in the late postoperative period. Materials and Methods This clinical study investigated the differences of a dynamic evaluation of the urethra and pelvic floor contraction using perineal ultrasound in men without prostate surgery and in men submitted to radical prostatectomy with and without stress urinary incontinence. Ninety two male patients were included, which 70% of them underwent radical prostatectomy (RP) for more than one year. Thirty one men with clinically post prostatectomy incontinence were compared by two-dimensional (2D) perineal ultrasound to 34 patients without post prostatectomy incontinence and to 27 men without surgery in two centers in Brazil. Results Our results showed that the continent group presented the urethral angle at rest significantly lower than the prostate group (p = 0.0002). We also observed that the incontinent group showed the displacement of the anterior bladder neck during contraction significantly lower than the continent group (p = 0.008). Conclusions We found that the continent group presented the urethral angle at rest significantly lower than the prostate group. The incontinent group also showed the anterior bladder neck displacement during contraction significantly lower than the continent group. It was more evident when the severe incontinent group and the continent group were compared.

RESUMO Objetivo: Avaliar o impacto do treinamento neuromuscular, por estimulação elétrica da marcha, nos parâmetros urodinâmicos de pacientes com bexiga neurogênica. Métodos: A população do estudo compreendeu oito pacientes quadriplégicos do sexo masculino com lesão cervical completa nos níveis C4 a C7. Eles foram submetidos a um treinamento neuromuscular por estimulação elétrica da marcha por seis meses, somente após estimulação dos músculos quadríceps e tibial anterior, por cinco meses, de modo a poder suportar 50% de seu peso corporal (pré-treinamento). Testes urodinâmicos foram feitos antes do treinamento e seis meses depois. Resultados: O tempo médio após a lesão cervical foi de 74,63 meses. Os parâmetros urodinâmicos antes e depois do treinamento neuromuscular por estimulação elétrica da marcha não mostraram diferença significante. Conclusão: Este estudo mostrou que o treinamento neuromuscular com estimulação elétrica pode ser benéfico para o trato urinário. Esse campo, promissor e minimamente invasivo, requer outros estudos mais completos para confirmar um possível benefício no trato urinário inferior.

ABSTRACT Objective: To evaluate the impact of gait training with neuromuscular electrical stimulation on urodynamic parameters of patients with neurogenic bladder. Methods: Eight male quadriplegic patients with complete cervical injury level ranging from C4 to C7 comprised the study population. They underwent treadmill gait training with neuromuscular electrical stimulation for six months, only after having their quadriceps and tibialis anterior muscles stimulated for five months in order to support at least 50% of their body weight (pre-gait training). Urodynamic testing was performed before the treadmill gait training and six months after. Results: The mean time after cervical lesion was 74.63 months. The urodynamic parameters before and after neuromuscular training by electrical stimulation did not show significant difference. Conclusion: This study demonstrated that neuromuscular training with electrical stimulation can benefit the urinary tract. This promising minimally invasive field requires further and more complete studies to confirm a possible benefit to the low urinary tract.