title: High urinary flow in women with stress incontinence: corrected flow-age nomogram evaluation after a transobturator tape procedure.
abstract: OBJECTIVE
  We noninvasively compared urinary flow in both pre- and post-transobturator tape (TOT) procedures in stress urinary incontinence (SUI) patients using previously reported corrected flow-age nomograms in healthy women.
  
  
  METHODS
  This retrospective cohort study included patients who underwent a successful TOT procedure to treat SUI. Non-instrumented uroflowmetry was performed before and 3 months after surgery. Corrected maximum flow rate (cQmax) and average flow rate (cQave) were calculated using Qmax/√voided volume (VV) and Qave/√VV respectively. The ratio of corrected flow to age-adjusted corrected flow in healthy women was calculated in each patient. Each parameter was compared against pre-TOT and 3-months post-TOT values.
  
  
  RESULTS
  Sixty-two patients were eligible for study inclusion. All urinary flow parameters were significantly higher pre-TOT than at 3 months post-TOT. The number of patients with cQmax and cQave over mean flow-age nomogram, compared with healthy women, before the TOT procedure decreased 3 months post-TOT; however, in many patients, cQmax and cQave were higher than in the corrected flow-age nomogram post-TOT. No significant difference in the ratio of cQmax to age-adjusted cQmax between pre- and post-TOT in the normal urinary flow group was observed, but significantly decreased in the high urinary flow group 3 months after TOT.
  
  
  CONCLUSIONS
  Urinary flow rates were higher in SUI patients compared with age-matched controls and successful TOT procedures normalized urinary flows in patients with high urinary flow. A simple evaluation of urinary flow using a corrected flow-age nomogram may be clinically useful in SUI patients.
authors.affiliation: Department of Integrative Cancer Therapy and Urology, Graduate School of Medical Science, Kanazawa University, Takaramachi 13-1, Kanazawa, Ishikawa, 920-8640, Japan. yasukita@med.kanazawa-u.ac.jp.
authors.forename: Yasuhide
authors.initials: Y
authors.lastname: Kitagawa
authors.affiliation: Department of Integrative Cancer Therapy and Urology, Graduate School of Medical Science, Kanazawa University, Takaramachi 13-1, Kanazawa, Ishikawa, 920-8640, Japan.
authors.forename: Kazutaka
authors.initials: K
authors.lastname: Narimoto
authors.affiliation: Department of Integrative Cancer Therapy and Urology, Graduate School of Medical Science, Kanazawa University, Takaramachi 13-1, Kanazawa, Ishikawa, 920-8640, Japan.
authors.forename: Satoko
authors.initials: S
authors.lastname: Urata
authors.affiliation: Department of Integrative Cancer Therapy and Urology, Graduate School of Medical Science, Kanazawa University, Takaramachi 13-1, Kanazawa, Ishikawa, 920-8640, Japan.
authors.forename: Shohei
authors.initials: S
authors.lastname: Kawaguchi
authors.affiliation: Department of Integrative Cancer Therapy and Urology, Graduate School of Medical Science, Kanazawa University, Takaramachi 13-1, Kanazawa, Ishikawa, 920-8640, Japan.
authors.forename: Masato
authors.initials: M
authors.lastname: Kuribayashi
authors.affiliation: Department of Integrative Cancer Therapy and Urology, Graduate School of Medical Science, Kanazawa University, Takaramachi 13-1, Kanazawa, Ishikawa, 920-8640, Japan.
authors.forename: Mikio
authors.initials: M
authors.lastname: Namiki
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D013509:Gynecologic Surgical Procedures; D006801:Humans; D008875:Middle Aged; D049451:Nomograms; D017063:Outcome Assessment, Health Care; D012189:Retrospective Studies; D053825:Suburethral Slings; D014550:Urinary Incontinence, Stress / Q000503:physiopathology* / Q000601:surgery; D014563:Urodynamics
keywords: Corrected flow–age nomogram; Stress urinary incontinence; Urinary flow rate
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