title: [Combination of the ureteral dilation catheter and balloon catheter under the ureteroscope in the treatment of male urethral stricture].
abstract: OBJECTIVE
  To investigate the clinical application of the ureteral dilation catheter combined with the balloon catheter under the ureteroscope in the treatment of urethral stricture in men.
  
  
  METHODS
  Under the ureteroscope, 45 male patients with urethral stricture received placement of a zebra guide wire through the strictured urethra into the bladder and then a ureteral dilation catheter along the guide wire, followed by dilation of the urethra from F8 initially to F14 and F16. Again, the ureteroscope was used to determine the length of the strictured urethra, its distance to the external urethral orifice, and whether it was normally located. An F24 balloon catheter and then a metal urethral calibrator was used for the dilation of the strictured urethra. After removal of the F18-F22 urethral catheter at 8 weeks, the urinary flow rate was measured immediately and again at 3 months.
  
  
  RESULTS
  All the operations were successfully performed without serious complications. The maximum urinary flow rate was (13.3-29.9) ml/s (mean [17.7 ± 3.2] ml/s) at the removal of the catheter and (15.2-30.8) ml/s (mean [19.8 ± 3.9] ml/s) at 3 months after it. Smooth urination was found in all the patients during the 6-24 months follow-up.
  
  
  CONCLUSIONS
  The application of the ureteral dilation catheter combined with, the balloon catheter under the ureteroscope is a good option for the treatment of male urethral stricture for its advantages of uncomplicatedness, safety, effectiveness, few complications, less pain, high success rate, and repeatable operation.
authors.forename: Yi
authors.initials: Y
authors.lastname: Zhou
authors.forename: Gong-hui
authors.initials: GH
authors.lastname: Li
authors.forename: Jia-jun
authors.initials: JJ
authors.lastname: Yan
authors.forename: Cong
authors.initials: C
authors.lastname: Shen
authors.forename: Gui-hang
authors.initials: GH
authors.lastname: Tang
authors.forename: Gang
authors.initials: G
authors.lastname: Xu
mesh_terms: D002404:Catheterization; D006801:Humans; D008297:Male; D020709:Ureteroscopes; D014521:Urethra; D014525:Urethral Stricture / Q000628:therapy*; D001743:Urinary Bladder; D062885:Urinary Catheters; D014554:Urination