Bladder neck hypertrophy and wide bladder neck anomaly (WBNA).

Area of Science:

• Urology
• Neurology
• Radiology

Background:

• Neurogenic bladder dysfunction affects numerous patients, impacting bladder neck and urethral X-ray findings.
• Understanding these urodynamic influences is crucial for accurate diagnosis and management.

Purpose of the Study:

• To analyze urodynamic findings in 247 patients with neurogenic bladder dysfunction.
• To identify factors influencing the X-ray appearance of the bladder neck and urethra.
• To compare urodynamics in female patients with supranuclear lesions and young girls with voiding problems.

Main Methods:

• Analysis of urodynamic findings in 247 patients classified using the Bors and Commarr system.
• Differentiation of reflex detrusor activity types in supranuclear lesions.
• Micturition cystourethrography for comparative analysis.

Main Results:

• Detrusor-sphincter dyssynergia and reflex detrusor activity were the primary determinants of posterior urethral shape in supranuclear lesions.
• Neither the duration nor the level of spinal cord injury influenced the posterior urethral shape.
• Micturition cystourethrography in female patients with supranuclear lesions showed similarities to young girls with voiding problems.

Conclusions:

• Urodynamic factors, specifically detrusor-sphincter dyssynergia and reflex detrusor activity, are key to understanding posterior urethral morphology in neurogenic bladders.
• Clinical management and diagnostic imaging should focus on these specific urodynamic parameters rather than injury chronicity or level.