title: Reconstruction of long ureteral obstructions using xenogenic acellular collagen membranes.
abstract: OBJECTIVE
  Extensive stricture of ureter still poses a difficult challenge for urologic surgons, especially when its middle part is affected. We present a reconstructive method of long ureteral strictures with use of xenogenic collagen membranes as a scaffolding to promote new tissue growth in the area of extensive ureter defect.
  
  
  METHODS
  Between 1980 and 2002 we applied and evaluated results of the new procedure in a total of 7 females and 3 males suffering from a various degree of hydronephrosis caused by extensive ureter stricture.
  
  
  RESULTS
  Early and long-term follow-up excretory urography demonstrated lack of obstruction in the operated ureter segment in all cases.
  
  
  CONCLUSIONS
  Easy surgical procedure, no complications after surgery excellent short and long-term results prove the efficacy and usefulness of the presented therapeutic option.
authors.affiliation: Department of Urology, Specialized Regional Hospital in Siedlce, Poland. urologiasiedlce@wp.pl
authors.forename: Andrzej
authors.initials: A
authors.lastname: Koziak
authors.forename: Piotr
authors.initials: P
authors.lastname: Kania
authors.forename: Adam
authors.initials: A
authors.lastname: Marcheluk
authors.forename: Tadeusz
authors.initials: T
authors.lastname: Dmowski
authors.forename: Ryszard
authors.initials: R
authors.lastname: Szcześniewski
authors.forename: Adam
authors.initials: A
authors.lastname: Dorobek
mesh_terms: D000818:Animals; D002417:Cattle; D003094:Collagen / Q000627:therapeutic use*; D020405:Dermis; D005260:Female; D006801:Humans; D008297:Male; D008567:Membranes, Artificial; D011859:Radiography; D019651:Plastic Surgery Procedures / Q000379:methods*; D014183:Transplantation, Heterologous; D016896:Treatment Outcome; D014517:Ureteral Obstruction / Q000000981:diagnostic imaging / Q000601:surgery*
chemical_list: D008567:Membranes, Artificial; D003094:Collagen