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  • Title: Concomitant anterior and posterior urethral valves in pediatrics: A single center experience over 12 years and long-term follow up after endoscopic treatment.
    Author: Kajbafzadeh AM, Hosseini Sharifi SH, Keihani S, Soltani MH, Tajali A, Salavati A, Payabvash S, Mehdizadeh M.
    Journal: Int J Urol; 2015 May; 22(5):514-9. PubMed ID: 25689730.
    Abstract:
    OBJECTIVE: To report our 12-year experience with endoscopic management of patients with concomitant anterior and posterior urethral valves. METHODS: We retrospectively reviewed the charts of patients referred to us for management of urethral valves from 2000 to 2012 to find cases with concomitant anterior and posterior valves. The diagnosis of valves was first suspected on voiding cystourethrography and confirmed by urethrocystoscopy. We collected available data on patients' age at diagnosis, clinical presentations, ultrasound and urodynamic findings, and surgical treatments. The final outcome at last follow up was also recorded. RESULTS: From 38 cases with anterior urethral valve, six (15.8%) presented concomitant anterior and posterior valves. The age at diagnosis in these patients ranged from antenatal diagnosis to 13 years. Initial presenting symptoms were recurrent urinary tract infection, incontinence, urosepsis and poor urinary stream. All valves were ablated by transurethral fulguration/resection using small-sized urethrocystoscopes. Among those with concomitant anterior and posterior valves, four patients had vesicoureteral reflux at presentation that resolved in two patients after valve ablation. One patient progressed to renal failure and required dialysis. Bladder hypercontractility and detrusor overactivity were the main urodynamic patterns in these patients. CONCLUSIONS: Concomitant anterior and posterior valves seem to be more prevalent than previously assumed, and might be missed on initial assessment. Oblique view voiding cystourethrography with full-length delineation of the urethra is of paramount diagnostic importance when obstruction is suspected. A meticulous urethrocystoscopy should follow for confirming the diagnosis and endoscopic ablation/resection of the valves.
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