title: Does tension-free vaginal tape and tension-free vaginal tape-obturator affect urodynamics? Comparison of the two techniques.
abstract: OBJECTIVE
  To evaluate the effects of tension-free vaginal tape (TVT) and tension-free vaginal tape-obturator (TVT-O) operations on urodynamics and subjective and objective outcomes.
  
  
  METHODS
  Thirty-six patients with stress or mixed urinary incontinence underwent TVT or TVT-O. Bristol Female Lower Urinary Tract Symptoms (BFLUTS) Questionnaire-Scored Form, one-hour pad test, Q-tip test, perineometer, and urodynamics were performed before and after the operations. Blaivas-nomogram was used for assessment of postoperative voiding difficulty.
  
  
  RESULTS
  Nineteen patients underwent TVT-O and 17 patients underwent TVT. Mean follow-up was 18.4 +/- 6.8 months. There was no difference between two groups regarding demographic variables, degree of prolapse, type of incontinence, perineometer, Q-tip test, pad test, and urodynamics. There was a significant increase in the maximum urethral closure pressure (MUCP) and residual volume in TVT-O group. According to Blaivas-nomogram, five patients had mild, one had medium obstruction in the TVT-O group, whereas one had mild and three had medium obstruction in TVT group. Two bladder perforations occurred during TVT. One patient developed groin pain after TVT-O.
  
  
  CONCLUSIONS
  TVT-O may lead to an increase in MUCP and residual urine volume. TVT-O is as efficient as TVT and leads to milder obstruction when compared to TVT.
authors.affiliation: Istanbul University, Medical Faculty, Department of Obstetrics and Gynecology, Istanbul, Turkey. fgungor@yahoo.com
authors.forename: F Gungor
authors.initials: FG
authors.lastname: Ugurlucan
authors.affiliation: Istanbul University, Medical Faculty, Department of Obstetrics and Gynecology, Istanbul, Turkey.
authors.forename: H Ayyildiz
authors.initials: HA
authors.lastname: Erkan
authors.affiliation: Istanbul University, Medical Faculty, Department of Obstetrics and Gynecology, Istanbul, Turkey.
authors.forename: C
authors.initials: C
authors.lastname: Yasa
authors.affiliation: Istanbul University, Medical Faculty, Department of Obstetrics and Gynecology, Istanbul, Turkey.
authors.forename: O
authors.initials: O
authors.lastname: Yalcin
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008875:Middle Aged; D011183:Postoperative Complications; D053825:Suburethral Slings / Q000009:adverse effects*; D014549:Urinary Incontinence / Q000601:surgery*; D014550:Urinary Incontinence, Stress / Q000601:surgery; D014563:Urodynamics / Q000502:physiology*; D013520:Urologic Surgical Procedures / Q000009:adverse effects / Q000379:methods*