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Current Bladder Dysfunction Reports
Published in: Current Bladder Dysfunction Reports 2/2020

01-06-2020 | Pediatric Urology | Pediatric Bladder Dysfunction (J Thomas and D Clayton, Section Editors)

Valve Bladder Syndrome Associated with Posterior Urethral Valves: Natural History, Work-up, and Management

Authors: Ernest Pang Chan, Peter Zhan Tao Wang, Sumit Dave

Published in: Current Bladder Dysfunction Reports | Issue 2/2020

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Abstract

Purpose of Review

This review focuses on the diagnosis, evaluation, and management of valve bladder syndrome (VBS) following initial treatment of posterior urethral valves (PUV). Based on current literature, we discuss the effect of PUV management in VBS and investigate the role of medications, catherization, surgery, and novel interventions.

Recent Findings

The current initial management of PUV involves valve ablation. Cutaneous urinary diversions are secondary options based on patient characteristics, PUV severity, and response to catheter drainage. VBS can independently occur as a consequence of PUV due to reduced nephron endowment leading to renal tubular dysfunction and polyuria, high bladder filling pressures secondary to a non-compliant bladder, and poor bladder emptying due to bladder neck hypertrophy. Options to mitigate the risk of upper tract deterioration include behavioral modifications and medical therapy (anticholinergics or alpha-blockers), bladder neck incision, clean intermittent catheterization and overnight catheter drainage, or more invasive approaches such as botulinum toxin injections and creation of a Mitrofanoff channel. Several experimental therapies to attenuate bladder fibrosis are currently under investigation.

Summary

The management of VBS starts with initial management of PUV and is subsequently dependent on the evolving bladder filling dynamics and bladder neck hypertrophy affecting bladder filling and emptying. This requires a pre-emptive management protocol to identify VBS in boys with PUV to prevent renal damage using various therapeutic interventions. The lack of prospective studies to investigate effectiveness of available therapeutic options to treat VBS limits the development of an evidence-based approach for severity-based management of PUV-associated VBS.
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Metadata
Title
Valve Bladder Syndrome Associated with Posterior Urethral Valves: Natural History, Work-up, and Management
Authors
Ernest Pang Chan
Peter Zhan Tao Wang
Sumit Dave
Publication date
01-06-2020
Publisher
Springer US
Published in
Current Bladder Dysfunction Reports / Issue 2/2020
Print ISSN: 1931-7212
Electronic ISSN: 1931-7220
DOI
https://doi.org/10.1007/s11884-020-00577-1

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