title: Correlation between urodynamic test results, perineal ultrasound and degree of stress urinary incontinence.
abstract: OBJECTIVE
  To evaluate whether the results of urodynamic tests and the perineal ultrasound were different between grade 1 and 2 stress urinary incontinence.
  
  
  METHODS
  Forty premenopausal women with a diagnosis of stress urinary incontinence according to urodynamic tests were enrolled in this study. Stress urinary incontinence was defined as urine leakage during stress without detrusor contraction. Twenty patients had grade 1 and 20 had grade 2 stress urinary incontinence. We compared the parameters of uroflowmetry, filling cystometry, urethral pressure profile, dynamic urethral function test, perineal ultrasound and stress urethral axis between grade 1 and 2 levels of stress urinary incontinence.
  
  
  RESULTS
  There were no significant differences in age, parity or body mass index between the grade 1 and 2 patients. Uroflowmetry results showed that there were no significant differences in maximal flow rate, average flow rate, voided volume or residual urine between grade 1 and 2. As to cystometry results, only the first desire to void was significantly increased in grade 2 over 1 (304 +/- 113.65 vs. 194 +/- 48.24 [mL], P = .04). There were no significant differences in any of the urethral pressure profile parameters. In the dynamic test, the Valsalva leak point pressure and cough leak point pressure were not significantly different between the 2 groups. There were no significant differences in perineal ultrasound parameters or the stress urethral axis.
  
  
  CONCLUSIONS
  Most stress urinary incontinence-related parameters showed no difference between the grade 1 and 2, and no urodynamic or ultrasonographic evidence for a difference between the grade 1 and 2 was demonstrated.
authors.affiliation: Department of Obstetrics and Gynecology, Yonsei University College of Medicine, Shinchon-dong 134 Seodaemun-gu, Seoul, South Korea, 120-752. swbai@yumc.yonsei.ac.kr
authors.forename: Sang Wook
authors.initials: SW
authors.lastname: Bai
authors.forename: Kyung Ah
authors.initials: KA
authors.lastname: Chung
authors.forename: Koon Ho
authors.initials: KH
authors.lastname: Rha
authors.forename: Sang Un
authors.initials: SU
authors.lastname: Kim
authors.forename: Sei Kwang
authors.initials: SK
authors.lastname: Kim
authors.forename: Ki Hyun
authors.initials: KH
authors.lastname: Park
mesh_terms: D000328:Adult; D003371:Cough; D005260:Female; D006801:Humans; D008875:Middle Aged; D010502:Perineum / Q000000981:diagnostic imaging*; D017697:Premenopause; D011312:Pressure; D014463:Ultrasonography; D014521:Urethra / Q000503:physiopathology; D014550:Urinary Incontinence, Stress / Q000000981:diagnostic imaging / Q000503:physiopathology*; D014563:Urodynamics