Spontaneous bladder rupture secondary to posterior urethral valves in a boy with Down syndrome

We describe a case of a 3-year-old boy with Down syndrome who developed a bladder rupture as a consequence of an undiagnosed posterior urethral valve (PUV). He had a history of urinary tract infections and constipation and was acutely admitted in poor condition and underwent laparotomy that revealed peritoneal sepsis secondary to bladder perforation. Bladder was drained using a suprapubic catheter and the condition of the boy gradually improved. Once stable, a cystourethroscopy confirmed the presence of PUV. Video-urodynamic studies performed at the check cystoscopy showed the bladder to be of reduced compliance (end fill pressure at 100 mL fill 30 cmH₂O) with raised voiding pressures (76-100 cmH₂O) and significant incomplete bladder emptying. Currently, the patient is doing very well, serum creatinine has normalised, he is infection-free and thriving; his bladder is managed with a vesicostomy.