title: Evaluation of female overactive bladder using urodynamics: relationship with female voiding dysfunction.
abstract: OBJECTIVE
  To investigate the role of urodynamic study (UDS) in female patients with overactive bladder (OAB) analyzing the relationship between OAB symptoms and female voiding dysfunction (FVD).
  
  
  METHODS
  We analyzed the clinical and urodynamic data of 163 women with OAB symptoms. OAB symptoms were categorized as dry and wet. FVD was described as detrusor underactivity (DUA), which was defined as a maximum flow rate (Qmax) of ≤ 15 mL/s associated with a detrusor pressure at Qmax (PdetQ max) of ≤ 20 cmH2O, along with bladder outlet obstruction (BOO), which was defined as a Qmax of ≤ 15 mL/s with a PdetQ max of > 20 cmH2O. Clinical and urodynamic results were compared between patients with dry and wet symptoms and between those with and without FVD.
  
  
  RESULTS
  78 (47.9%) had dry, and 85 (52.1%) had wet symptoms. The entire group had a relatively low Qmax (15.1 ± 6.6 mL/s) and relatively high number of BOO (42.9%, 70/163) and DUA (8.6%, 14/163). A significantly higher number of patients with wet symptoms had detrusor overactivity compared to those with dry, as detected by the UDS (p < 0.05). No significant differences were found in BOO and DUA number between dry and wet groups. Further, the international prostate symptom score did not different significantly between patients with and without FVD.
  
  
  CONCLUSIONS
  A significant number of women with OAB had voiding dysfunction. However, the OAB symptoms themselves were not useful for predicting the presence of FVD. Therefore, UDS may be necessary for accurate diagnosis in women with OAB symptoms.
authors.affiliation: Department of Urology, The Catholic University of Korea, Bucheon St. Mary's Hospital, Bucheon, Korea.
authors.forename: Kang Jun
authors.initials: KJ
authors.lastname: Cho
authors.affiliation: Department of Urology, The Catholic University of Korea, Bucheon St. Mary's Hospital, Bucheon, Korea.
authors.forename: Hyo Sin
authors.initials: HS
authors.lastname: Kim
authors.affiliation: Department of Urology, The Catholic University of Korea, Bucheon St. Mary's Hospital, Bucheon, Korea.
authors.forename: Jun Sung
authors.initials: JS
authors.lastname: Koh
authors.affiliation: Department of Urology, The Catholic University of Korea, Bucheon St. Mary's Hospital, Bucheon, Korea.
authors.forename: Joon Chul
authors.initials: JC
authors.lastname: Kim
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015897:Comorbidity; D005260:Female; D006801:Humans; D008875:Middle Aged; D011237:Predictive Value of Tests; D011788:Quality of Life; D012189:Retrospective Studies; D053201:Urinary Bladder, Overactive / Q000453:epidemiology / Q000503:physiopathology*; D014549:Urinary Incontinence / Q000503:physiopathology*; D014554:Urination; D014563:Urodynamics / Q000502:physiology*