Urodynamics

Types of Urodynamic Studies

• Uroflowmetry– measures urine in the bladder and flow rate.
• Post-void residual measurement– assesses the volume of urine in the bladder after urination.
• Cystometry– evaluates bladder function by measuring volume and pressure at initial filling, first desire to void, and maximum capacity. 
• Leak point pressure measurement– assesses the pressure at which leakage is occurring.
• Pressure flow study– measures pressure at which urination can take place and the speed of the urine flow.
• Sphincter Electromyography– measures the electrical activity of nerves and muscles around the bladder.
• Video urodynamic test– allows visualization of bladder filling and voiding using x–rays or ultrasound. 

Indications for Urodynamic testing

• Urinary incontinence
• Urinary retention 
• Frequent urination
• Urinary urgency
• Intermittent urination
• Frequent UTIs