Exstrophic bladder duplication in the sagittal plane: Surgical management of a rare case.

INTRODUCTION: The bladder-Exstrophy-Epispadias complex (BEEC) contains a wide spectrum of congenital malformations. A treatment naïve refugee was referred to our center with what was identified as BEEC. MATERIALS AND METHODS: A 27-year-old female patient was referred for total incontinence since birth by the general practitioner from the refugee center. An exstrophic bladder with blind ending ureteral orifices and a second non-exstrophic bladder with two orthotopic ureters was identified, demonstrating the bladder duplication in the sagittal plane. Laparotomy was performed, dissecting the exstrophic bladder plate caudally and using it as a ventral onlay to augment the non-exstrophic bladder. A Mitchell-type bladder neck reconstruction was performed with an autologous fascia sling around the bladder neck to obtain continence. As the patient had never voluntarily voided, chances of spontaneous voiding after surgery were low. Therefore creation of a continent Mitrofanoff-type vesicostomy was additionally realized and genital reconstruction was achieved. RESULTS: 12 months post operatively, the patient was completely continent, had a bladder capacity of 250 ml, and performed self-catheterization 5 times a day. No post-operative complications were observed. CONCLUSION: Admission of political refugees can implicate challenging surgeries for congenital malformations in adults, such as BEEC. This demonstrates the importance of multidisciplinary transitional care.

The low dopamine hypothesis: A plausible mechanism underpinning residual urine, overactive bladder and nocturia (RON) syndrome in older patients.

INTRODUCTION: Aging is associated with a combination of several lower urinary tract (LUT) signs and symptoms, including residual urine, overactive bladder and nocturia. One of the mechanisms of this LUT dysfunction that has not been discussed in dept so far is the role of dopamine (DA). METHODS: In this narrative review, we explore the dopaminergic hypothesis in the development of this combination of LUT signs and symptoms in older adults. RESULTS: DA is one of the neurotransmitters whose regulation and production is disrupted in aging. In synucleinopathies, altered DAergic activity is associated with the occurrence of LUTS and sleep disorders. Projections of DAergic neurons are involved in the regulation of sleep, diuresis, and bladder activity. The low dopamine hypothesis could explain the genesis of a set of LUT signs and symptoms commonly seen in this population, including elevated residual urine, Overactive bladder syndrome and Nocturia (discussed as the RON syndrome). This presentation is however also common in older patients without synucleinopathies or neurological disorders and therefore we hypothesise that altered DAergic activity because of pathological aging, and selective destruction of DAergic neurons, could underpin the presentation of this triad of LUT dysfunction in the older population. CONCLUSION: The concept of RON syndrome helps to better understand this common phenotypic presentation in clinical practice, and therefore serves as a useful platform to diagnose and treat LUTS in older adults. Besides recognizing the synucleinopathy "red flag" symptoms, this set of multi-causal LUT signs and symptoms highlights the inevitable need for combination therapy, a challenge in older people with their comorbidities and concomitant medications.