Why is it done?

Urodynamics (also known as a UDS, CMG or cystometrogram) is a procedure done in a doctor’s office to evaluate the bladder.  This test is usually done to determine why you are leaking and how to best treat the leakage.  It is often done before a surgery for prolapse or bladder leaking.  This is a common test but not one that I need for routine patients.  It is best used for patients with complicated bladder issues like patients with neurologic conditions or previous bladder surgeries.

How is it done?

Urodynamics measures the pressure in the bladder and the surrounding tissues.  To do this, a small catheter is placed in the bladder and a second catheter is either placed in the vagina or rectum.  The bladder is slowly filled with sterile fluid.  During the test, you will be asked to describe what you are feeling (your bladder sensation) and asked to cough and bear down.  At the end of the test, you will be asked to empty your bladder. If you need more visuals, you can find them here.  This may sound like torture.  It isn’t a fun test, but it isn’t awful either.  My office staff does a really good job of making everyone as comfortable as possible- they know it is all a little awkward.

What can it tell us?

Urodynamics gives great information about how the bladder is working.  It measures bladder pressure which can tell me if you are at risk of kidney problems.  I can detect sensory abnormalities which leads us down a different treatment path.  It can tell me when your bladder muscle squeezes poorly and makes it hard for you to empty.  Many times this test will provide the missing piece to the puzzle and lead you to the right treatment.

If you are uncomfortable with the idea of this test, discuss it with your provider.  You are part of the healthcare process and there may be another way to move forward!