Brazilian consensus on vesicoureteral reflux-recommendations for clinical practice

ABSTRACT Introduction Vesicoureteral Reflux (VUR) is characterized by a retrograde flow of urine from the bladder into the ureters and kidneys. It is one of the most common urinary tract anomalies and the major cause of urinary tract infection (UTI) in the first years of life. If not properly diagnosed and treated can lead to recurrent UTI, renal scar and, in severe cases, to end stage renal disease. Despite recent advances in scientific and technological knowledge, evaluation and treatment of VUR is still controversial and there is still considerable heterogeneity in evaluation methods and therapeutic approaches. The aim of the present consensus is to give a practical orientation on how to evaluate and treat VUR. Methods The board of Pediatric Urology of the Brazilian Society of Urology joined a group of experts and reviewed all important issues on Vesicoureteral Reflux evaluation and treatment and elaborated a draft of the document. On November 2017 the panel met to review, discuss and write a consensus document. Results and Discussion Vesicoureteral Reflux is a common and challenging problem in children. Children presenting with Vesicoureteral Reflux require careful evaluation and treatment to avoid future urinary tract infections and kidney scars. The panel addressed recommendations on up to date choice of diagnosis evaluation and therapies.

Brazilian consensus in enuresis-recomendations for clinical practice

ABSTRACT Introduction Enuresis, defined as an intermittent urinary incontinence that occurs during sleep, is a frequent condition, occurring in about 10% of children at 7 years of age. However, it is frequently neglected by the family and by the primary care provider, leaving many of those children without treatment. Despite of many studies in Enuresis and recent advances in scientific and technological knowledge there is still considerable heterogeneity in evaluation methods and therapeutic approaches. Materials and Methods The board of Pediatric Urology of the Brazilian Society of Urology joined a group of experts and reviewed all important issues on Enuresis and elaborated a draft of the document. On September 2018 the panel met to review, discuss and write a consensus document. Results and Discussion Enuresis is a multifactorial disease that can lead to a diversity of problems for the child and family. Children presenting with Enuresis require careful evaluation and treatment to avoid future psychological and behavioral problems. The panel addressed recommendations on up to date choice of diagnosis evaluation and therapies.

The Ochoa urofacial syndrome: recognize the peculiar smile and avoid severe urological and renal complications / Síndrome urofacial de Ochoa: reconheça o sorriso peculiar e evite complicações urológicas e renais graves

Ochoa syndrome is rare and its major clinical problems frequently unrecognized. We describe facial characteristics of six patients to help health professional recognize the inverted smile that these patients present and refer them to proper treatment. Patients’ medical records were reviewed and patients’ urological status clinically reassessed. At last evaluation patients’ mean age was 15.5 years, and age ranged from 12 to 32 years. Mean follow-up was 35 months (12 to 60). Initial symptoms were urinary tract infections in four patients (67%) associated with enuresis and incontinence in three of them (50%). One patient had only urinary tract infection and two lower urinary tract symptoms without infections. Initial treatment consisted of clean intermittent catheterization with anticholinergics for all patients. Four patients (67%) were submitted to bladder augmentation. Two patients had end-stage renal disease during follow-up, one received kidney transplantation and one patient remained on the waiting list for a renal transplantation. Familial consanguinity was present in only one case. This significant condition is rare, but it must be recognized by pediatricians, nephrologists and urologists in order to institute early aggressive urological treatment.

A síndrome de Ochoa é rara, e seus principais problemas clínicos são frequentemente não reconhecidos. Descrevem-se aqui características faciais de seis pacientes para auxiliar profissionais de saúde a reconhecer o sorriso invertido que eles apresentam e encaminhá-los para o tratamento adequado. Os prontuários médicos foram revisados e a condição urológica dos pacientes foi reavaliada clinicamente. A média de idade na última avaliação foi de 15,5 anos, variando de 12 a 32 anos. O seguimento médio foi de 35 meses (12 a 60). Os sintomas iniciais foram infecções do trato urinário em quatro pacientes (67%) associadas com enurese e incontinência urinária em três deles (50%). Um paciente apresentou infecções do trato urinário isoladamente e dois apresentaram sintomas do trato urinário inferior, porém sem infecções. O tratamento inicial consistiu em cateterismo intermitente limpo, com anticolinérgicos em todos os pacientes. Reconstrução urinária foi realizada em quatro pacientes (67%) por meio de ampliação vesical. Dois pacientes apresentaram doença renal em estágio terminal no seguimento, um recebeu transplante renal e outro manteve-se em lista de espera para transplante renal. Consanguinidade familiar esteve presente em apenas um caso. Essa condição significativa é rara, porém deve ser reconhecida por pediatras, nefrologistas e urologistas, a fim de instituir tratamento urológico agressivo precoce.

Cloacal Exstrophy: a complex disease

Introduction Cloacal exstrophy is a rare occurrence with an incidence of 1:200,000 to 1:400,000 live births. It represents one of the most challenging reconstructive endeavors faced by pediatric surgeons and urologists. Aside from the genitourinary defects, there are other associated anomalies of the gastrointestinal, musculoskeletal and neurological systems that require a multidisciplinary approach when counseling anxious parents. Material and Methods We present a video of a patient with cloacal exstrophy treated with 21 days of life. Surgery consisted of separation and tubularization of the cecal plate from the exstrophied bladder halves and colostomy construction. The bladder was closed primarily and umbilical scar reconstructed and used for ureteral and cistostomy drainage. A urethral catheter was used to guide bladder neck tubularization. A final epispadic penis was obtained and planned for further repair in a second step. Results The patient had an initial uneventful postoperative course and immediate outcome was excellent. The bladder healed nicely but patient presented with abdominal distension in the 5th day of postoperative setting requiring parenteral nutrition. The distal colon persisted with lower diameter although non obstructive, but causing difficulty for fecal progression. Continuous colostomy dilatation and irrigation were required. Conclusions Approximating the bladder halves in the midline at birth and primary bladder closure is a viable option, intestinal transit may be a issue of concern in the early postoperative follow-up. .

Keratinized versus non-keratinized preputial flap onlay urethroplasty: does it make any difference in the histological analysis? An experimental study in rabbits

Purpose To compare the histological characteristics of keratinized versus non-keratinized onlay island flaps in an experimental rabbit model. Materials and Methods Sixteen male rabbits were randomly allocated into two experimental groups: keratinized and non-keratinized onlay island flaps. A defect was created in the ventral aspect of the penile urethra. In the keratinized group, a longitudinal island flap was harvested from the external prepuce and rotated to cover the urethral defect. In the non-keratinized group a transverse island flap was harvested from the inner prepuce. The animals were sacrificed after 2, 4, 8 and 12 weeks. Results The flaps were viable in all animals, and no deaths were associated with the procedure. Two urethrocutaneous fistulas were identified, one in each experimental group. A similar pattern of fibrosis was identified in both groups. The keratinized epithelium of the external prepuce kept its histological aspect and keratin production. Both keratinized and non-keratinized groups presented a slight decrease on the epithelial thickness, however without a statistically significant difference between groups. Conclusions In this short-term rabbit model, we observed that the stratified squamous keratinized epithelium from the external prepuce kept its keratin production. There was no statistical influence of the flap type on the mean epithelial thickness. .

Medidas antropométricas como indicadores do estado nutricional em pacientes com espinha bífida submetidos a enterocistoplastia / Anthropometric measurements as an indicator of nutritional status in spina bifida patients undergoing enterocystoplasty

OBJECTIVE: To use anthropometric measurements to compare nutritional status in children with neurogenic bladder dysfunction secondary to meningomyelocele who underwent enterocystoplasty and those who did not undergo surgery. METHODS: A case-control study was conducted in 20 children, divided into two groups: those who had enterocystoplasty (Group A) and those who did not undergo surgery (Group B), matched for genre and age. Weight, height, arm circumference, and triceps skinfold thickness were the parameters used. Nutritional assessment was determined by calculating the indexes, based on age and genre. Classification was based on the percentile and the results were compared with the reference values. RESULTS: The mean age was 6.41 years in Group A and 6.35 years in Group B. The interval between surgery and evaluation was 11 months. The following measures were found for Group A: 80% of children were eutrophic, a percentage 30% greater than that in Group B; arm muscle circumference was adequate in 40% of patients, a percentage 20% greater than that in Group B; arm muscle area was adequate in 90%, a percentage 30% greater than that in Group B. Values in Group B were as follows: for triceps skinfold thickness, 60% of patients had values above the mean, a percentage 20% greater than that in Group A; for arm fat index, 60% of patients were above the mean value, 40% greater than in Group A. CONCLUSION: Patients who had undergone enterocystoplasty showed better nutritional status, while the control group presented higher fat indexes in anthropometric measures. However, the differences between groups were not statistically significant.

OBJETIVO: Utilizar as medidas antropométricas para comparar o estado nutricional em crianças com bexiga neurogênica secundária à mielomeningocele submetidas a enterocistoplastia àquelas não submetidas à cirurgia. MÉTODOS: Estudo tipo caso-controle conduzido em 20 crianças, divididas em dois grupos, aquelas que realizaram enterocistoplastia (Grupo A) versus crianças não operadas (Grupo B), pareados por gênero e idade. Os parâmetros utilizados foram peso, altura, circunferência do braço e prega cutânea triciptal. A avaliação nutricional foi determinada calculando-se índices baseados na idade e no gênero. A classificação foi baseada em porcentagens, e os resultados foram comparados com valores de referência. RESULTADOS: A média da idade foi 6,41 anos no Grupo A e de 6,35 no Grupo B. O intervalo entre a cirurgia e a avaliação foi de 11 meses. As seguintes medidas foram encontradas para o Grupo A: 80% das crianças eram eutróficas, 30% maior do que no Grupo B; circunferência braquial foi adequada em 40% dos pacientes, 20% maior do que no Grupo B; a área do músculo do braço foi adequada em 90%, 30% maior do que no Grupo B. Os valores no Grupo B foram os seguintes: 60% apresentaram prega cutânea triciptal acima do valor médio, uma porcentagem 20% acima do que no Grupo A; para índice de gordura braquial, 60% dos pacientes estavam acima da média, 40% maior do que no Grupo A. CONCLUSÃO: Pacientes submetidos à enterocistoplastia demonstraram melhor estado nutricional enquanto o grupo controle apresentou índices de gordura mais elevados nas medidas antropométricas. Entretanto, a diferença entre os grupos não foi estatisticamente significativa.

The buccal mucosa fenestrated graft for Bracka first stage urethroplasty: experimental study in rabbits

To histologically evaluate, in an experimental study in rabbits, the integration process of the buccal mucosa fenestrated graft applied in the corpora cavernosa for Bracka first stage urethroplasty.

A urethral defect was surgically created in 16 male rabbits of the New Zealand breed through the excision of the penile urethra. The urethral defect was corrected by applying buccal mucosa fenestrated graft through two cruciform incisions in the distal portions of its longitudinal axis. The animals were sacrificed at 2, 4, 8 and 12 weeks post surgery and their genitals were subjected to clinical and histological assessment.

The buccal mucosa fenestrated graft showed complete uptake in all groups, with keratinization squamous metaplasia and mucosal proliferation of the fenestrated areas. The fenestrated graft area represented an increase in length of 25% in length in relation to the original standard graft.

The fenestrated buccal mucosa graft presented total integration to the adjacent epithelia with re-epithelization of the incision areas of the graft (fenestrations) and no significant inflammatory or scarring reactions when compared to other mucosa transplanted areas; therefore its application is viable in cases of extensive urethral defect whenever the donating area might be insufficient. .

Urethral duplication II-A Y type with rectal urethra: ASTRA approach and tunica vaginalis flap for first stage repair

INTRODUCTION: Urethral duplication is a rare congenital anomaly affecting mainly boys. Generally, the duplication develops on the sagittal plane; the accessory urethra may run dorsally or ventrally to the orthotopic one. We present a patient with urethral duplication in which the orthotopic urethra was patent in the penile segment but atresic in the bulbar and prostatic segment. The patient had urinary flow from the rectum and the ectopic urethra could be well identified by anal examination. MATERIALS AND METHODS: Age at surgery was 13 months. The procedure consisted of an ASTRA (anterior sagittal trans-ano-rectal) approach for dividing the urethra and rectum and was successful to move the urethra up to the perineal area. The rectum was reconstructed and the patient placed into a lithotomy position. A urethral catheter inserted in the penile urethra oriented us were the atresic urethra in bulbar area started. The scrotum was opened in the middle and the distance between the two urethral stumps proximal and distal defined the extension of no urethral tissue that consisted of 5 cm. We opened the right scrotal space and a tunica vaginalis flap was obtained and attached to the bulbar tissue for a two-stage urethroplasty strategy. RESULTS: Patient had a nice healing and the tunica vaginalis was nicely incorporated to the adjacent tissue, having the two urethral stumps well delineated. CONCLUSIONS: ASTRA approach in combination with a two-stage urethroplasty with tunica vaginalis dorsal flap proved to be an excellent combination for a rare case of urethral Y duplication having the main urethra into the rectum.