Current epidemiology and antenatal presentation of posterior urethral valves: Outcome of BAPS CASS National Audit

National audit examining current epidemiology and presentation patterns of posterior urethral valves in the UK and Ireland, comparing contemporary data to historical 1980s cohorts. Study analyzes timing of diagnosis (antenatal vs postnatal vs late presentation) and incidence rates in boys with this leading cause of childhood bladder obstruction and renal failure.