Related Experiment Video
Updated: Aug 4, 2026

Evaluation of Biomaterials for Bladder Augmentation using Cystometric Analyses in Various Rodent Models
Published on: August 9, 2012
Urology case report: Multifactorial bladder dysfunction in the setting of down syndrome
Yusuke Matsuura1, Jennifer Gates1, Peter Morgenstern1
1Icahn School of Mount Sinai, 1468 Madison Ave, New York, NY, 10029, USA.
A teen with Down syndrome experienced kidney issues and urinary retention. Surgical intervention for a Tarlov cyst and urethral stricture resolved kidney problems, while behavioral therapy improved bladder emptying.
Area of Science:
- Nephrology
- Urology
- Neurology
Background:
- A 16-year-old male with Down syndrome presented with acute kidney injury (AKI) and a urinary tract infection (UTI).
- Initial treatment involved meropenem for ESBL-positive *E. coli*.
- Persistent elevated creatinine and significant post-void residual (PVR) indicated underlying complications.
Observation:
- Further investigations revealed urethral stricture and a sacral Tarlov cyst.
- Urethral dilatation provided incomplete relief for the patient's urinary issues.
- Surgical intervention included laminectomy and Tarlov cyst fenestration.
Findings:
- Post-surgery, the patient's creatinine normalized, urine output increased, and urinary flow improved.
- Despite improvements, a PVR >100 mL persisted, necessitating further management.
- Behavioral therapy, including timed voiding, successfully reduced PVR to <5 mL.
Implications:
- This case highlights the complex interplay between neurological and urological conditions in patients with Down syndrome.
- Multidisciplinary management, including surgical and behavioral interventions, is crucial for addressing complex urological issues.
- Effective treatment of underlying causes like Tarlov cysts can lead to significant recovery of renal function and bladder control.
Related Concept Videos
Urinary Bladder
In males, the bladder is situated in front of the rectum, while in females, it is positioned anterior to the vagina and uterus. The bladder floor contains an inverted triangular area called the trigone, defined by the two ureteric...
Disorders of the Urinary System
Urinary tract infections (UTIs) are one of the most common urinary system disorders. They are caused by bacteria that enter the urethra and can spread to the bladder resulting in cystitis. Pyelonephritis is the result of a UTI that has ascended to the level of the...
Anatomy of the Genitourinary System II: Bladder and Urethra
Urinary Tract Calculi I: Introduction
Urodynamic Studies: Uroflowmetry
Microbiota of the Urogenital Tract

