Uro Dynamic Studies

Urodynamics are a means of evaluating the pressure-flow relationship between the bladder and the urethra for the purpose of defining the functional status of the lower urinary tract. Simple urodynamic tests involve performing noninvasive uroflow studies, obtaining postvoid residual (PVR) urine measurements, and performing single-channel cystometrography (CMG). The most sophisticated study is videourodynamics, the criterion standard in the evaluation of a patient with incontinence. In this study, the following are obtained:

  • Noninvasive uroflow
  • PVR
  • Filling CMG
  • Abdominal (or Valsalva) leak point pressure
  • Voiding CMG (pressure-flow study)
  • EMG
  • Static cystography
  • Voiding cystourethrography