Скачать или смотреть Components of urodynamic studies; Uroflowmetry, Post Void Residual PVR Volume, Cystometry Filling

Urodynamic studies are a group of diagnostic tests that assess how well the bladder, urethra, and pelvic floor muscles store and release urine. These tests are essential for evaluating urinary incontinence, retention, and other lower urinary tract symptoms.

Here’s a breakdown of the key components:

🧪 1. Uroflowmetry
Measures: Rate and pattern of urine flow during voiding

Purpose: Detects weak stream, intermittent flow, or obstruction

💧 2. Post-Void Residual (PVR) Volume
Measures: Amount of urine left in the bladder after urination

Method: Ultrasound or catheterization

Purpose: Identifies incomplete bladder emptying

🧬 3. Cystometry (Filling Cystometrogram)
Measures: Bladder pressure during filling

Assesses:

Bladder capacity

Sensation (first desire, strong desire)

Compliance (stretchability)

Detrusor overactivity (involuntary contractions)

🧠 4. Pressure-Flow Study
Measures: Detrusor pressure during voiding and urine flow rate

Purpose: Differentiates between bladder outlet obstruction and weak detrusor muscle

📏 5. Urethral Pressure Profilometry
Measures: Pressure along the urethra

Purpose: Evaluates urethral closure function and sphincter strength

🧪 6. Leak Point Pressure (LPP)
Types:

Valsalva Leak Point Pressure: Pressure at which leakage occurs during straining

Detrusor Leak Point Pressure: Pressure at which leakage occurs due to involuntary contractions

Purpose: Diagnoses stress incontinence and evaluates risk of upper tract damage

🖥️ 7. Electromyography (EMG)
Measures: Electrical activity of pelvic floor muscles and sphincters

Purpose: Assesses coordination and function during bladder filling and voiding

🧭 Optional: Video Urodynamics
Combines pressure measurements with real-time imaging (fluoroscopy)


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