title: A new technique for retrograde flexible ureteroscopy after Cohen cross-trigonal ureteral reimplantation.
abstract: OBJECTIVE
  Retrograde ureteral access after cross-trigonal ureteral reimplantation can be challenging. We present our experience with retrograde ureteral catheterization and flexible ureteroscopy after Cohen cross-trigonal reimplantation in patients presenting with ureteral stones.
  
  
  METHODS
  Cystoscopy is performed and a Tiemann ureteral catheter is inserted into the involved ureteral orifice. A retrograde ureterography is performed and hydrophilic guide wire is passed up to the kidney. A dual-lumen ureteral access sheath is then passed under x-ray control underneath the ureteral stone. The flexible ureterorenoscope is passed under x-ray control up to the stone which is then fragmented with a holmium laser.
  
  
  RESULTS
  From June 2006 to June 2010, this technique was successful in 8 patients without acute or delayed sequelae.
  
  
  CONCLUSIONS
  Where the endourological expertise is readily available, the ureter can be accessed retrogradely even after Cohen cross-trigonal ureteral reimplantation in a safe, straightforward and effective modality.
authors.affiliation: Department of Urology and Andrology, Paracelsus Medical University Salzburg, Salzburg, Austria. L.Lusuardi @ salk.at
authors.forename: Lukas
authors.initials: L
authors.lastname: Lusuardi
authors.forename: Stephan
authors.initials: S
authors.lastname: Hruby
authors.forename: Stephan
authors.initials: S
authors.lastname: Jeschke
authors.forename: Reinhold
authors.initials: R
authors.lastname: Zimmermann
authors.forename: Manuela
authors.initials: M
authors.lastname: Sieberer
authors.forename: Günther
authors.initials: G
authors.lastname: Janetschek
mesh_terms: D000293:Adolescent; D000328:Adult; D004867:Equipment Design; D005260:Female; D006801:Humans; D007834:Lasers; D008297:Male; D012092:Replantation / Q000379:methods; D016896:Treatment Outcome; D014513:Ureter / Q000503:physiopathology / Q000601:surgery*; D014514:Ureteral Calculi / Q000601:surgery*; D020709:Ureteroscopes; D018666:Ureteroscopy / Q000379:methods*; D014572:Urology / Q000379:methods*; D014965:X-Rays