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Urology Dynamic Department

Urodynamics is a study that assesses how the Urinary bladder and urethra are functioning i.e. Performing their job of "storing" and "releasing" urine. Urodynamic tests help us to see how well your bladder and sphincter muscles work and can help explain symptoms such as :-

  • Incontinence
  • Frequent urination
  • Sudden, strong urges to urinate
  • Problem starting a urine stream
  • Painful urination
  • Problems emptying your bladder completely
  • Recurrent urinary tract infections

This test may be as simple as urinating behind a curtain while the machine records, involving imaging equipment, urination and pressure monitors that record the pressures in the bladder and urethra.

Preparing for the test

Usually no special preparations are needed, but do make sure you understand any instructions you receive. Depending on the test, you may be asked to come with a full bladder or an empty one. Also, ask your doctor whether you should change your diet or skip your regular medicines and for how long.

Uroflowmetry

This test measures the amount and rate of urine you void from your bladder. This noninvasive study is frequently used to screen for bladder emptying problems.

Process: You will be asked to urinate into a special container placed under a commode or into a funnel attached to equipment that records your urine flow over time.

Time Required: 1-2 minutes

Cystometry

This test evaluates how much your bladder can hold, how well the bladder muscles function and how the neurological signals work that tell you when your bladder is full. This is the primary test used to reproduce and evaluate symptoms of incontinence and other bladder problems.

Process: A catheter will be inserted through the urethra into the bladder. Through this catheter, your bladder will be filled with sterile water or a saline solution. A second catheter may be placed in your vagina or rectum to provide additional data. You will be asked to report any sensations you feel and if they are similar to ones that you have felt at home. You may be asked to cough, bear down ("Valsalva"), or stand during this test.

Time Required: 10-20 minutes

Urethral Pressure Profile Study

This test evaluates the amount of pressure in your urethra. This information can be useful in evaluating the cause of incontinence.

Process: The bladder catheter is withdrawn slowly from the bladder and special equipment generates a urethral pressure curve.

Time Required: 1-2 minutes

Pressure Flow Study

This test is an in-depth measurement of the pressure and flow of urine out of your bladder. This study is valuable for evaluating problems with emptying urine.

Process: Pressure flow studies can be performed after cystometry. You will be asked to urinate with the cystometry catheters in place into a funnel attached to special equipment.

Time Required: 1-5 minutes

Getting Your Results

Test results may be available immediately after the study is finished, or you may be asked to return to your doctor's office in a few days for your results. The report will include a summary of the study results, your doctor's diagnosis of your problem, and suggestions for further evaluation and treatment. After reviewing the results, your doctor will talk with you about the study report and your treatment options.