What is Urodynamics?

Urodynamics is a medical discipline that focuses on assessing and measuring the function and functioning of the lower urinary tract. It includes a series of diagnostic tests and procedures used to evaluate and diagnose urinary tract disorders and urinary incontinence. These tests help understand the cause and nature of problems related to the bladder, urethra, and pelvic floor.

Some of the most common urodynamic tests are:

1. Urodynamics: This is a comprehensive evaluation of urinary tract function, measuring various parameters during bladder filling and emptying. It includes measuring bladder pressure, urine flow rate, bladder filling, and assessing bladder contractile force.

2. Cystometry: This is a urodynamic test in which the bladder is filled with sterile water through a thin catheter while measuring pressure in the bladder and urethra. This helps assess bladder function, storage capacity, and the bladder's ability to properly drain urine.

3. Urethral Pressure Measurement: This test measures the pressure in the urethra at rest and during urination to assess normal function of the urethra and identify any obstructions.

4. Urethral Profilometry: This is a measurement of the pressure changes in the urethra at rest and during urination to identify the pressure profiles and possible abnormalities.

5. Electromyography (EMG): This test measures the electrical activity of the muscles in the pelvic floor area to assess for involuntary contractions or weakness of the muscles responsible for controlling urine and fecal flow.

Urodynamic tests are often performed by specialists in urology, gynecology, or urologic nurses. The results of urodynamic testing help to make an accurate diagnosis and determine the most appropriate treatment plan for urinary tract disorders, such as stress incontinence, overactive bladder, neurogenic bladder disorders and other functional problems related to the urinary system.