title: Glide wires for delayed catheterization of severely obstructed ureters.
abstract: OBJECTIVE
  Failure to retrogradely catheterize an obstructed ureter may require a nephrostomy. We describe an endoscopic technique to catheterize a severely obstructed ureter when the obstruction does not permit passage of a ureteral catheter over a wire.
  
  
  METHODS
  Using a cystoscope, a wire is passed beyond the obstruction. When the attempt to insert a ureteral catheter over the wire fails, the wire is left in place, fixed externally to a Foley catheter. A second attempt to insert a ureteral catheter is carried out 24-48 h later.
  
  
  RESULTS
  The procedure was performed in 5 patients. Ureteral catheterization, which was initially impossible, was performed successfully and without complications.
  
  
  CONCLUSIONS
  Maintaining a wire in place over a short period of time facilitates a subsequent ureteral catheterization.
authors.affiliation: Department of Urology, Tel-Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel. avidory@netvision.net.il
authors.forename: Y
authors.initials: Y
authors.lastname: Avidor
authors.forename: J
authors.initials: J
authors.lastname: Ben-Chaim
authors.forename: A
authors.initials: A
authors.lastname: Greenstein
authors.forename: R
authors.initials: R
authors.lastname: Rub
mesh_terms: D000328:Adult; D000368:Aged; D003558:Cystoscopy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012720:Severity of Illness Index; D013997:Time Factors; D014517:Ureteral Obstruction / Q000628:therapy*; D014546:Urinary Catheterization / Q000379:methods*