title: Intraoperative double-J stent insertion in children with scintigraphic impaired renal function and obstructive urinary tract malformation.
abstract: OBJECTIVE
  Ureteral double-J (DJ) stents are frequently used in modern urologic practice. At present the role of stents in urological and surgical practice and their efficacy in paediatric age are not yet clear. The aim of this study is to evaluate advantages and efficacy of ureteral stents, correlating clinical and radiological data with the permanence of stent in situ.
  
  
  METHODS
  Between July 1999 and July 2004 surgery with ureteral stenting was performed on 24 consecutive patients aged between 2 and 13.5 months with scintigraphic impaired renal function due to an obstructive urinary tract malformation. During the study the performance and the efficacy of indwelling stent have been evaluated through clinical and radiological variables: pre-, intra-, and post stenting blood tests, ultrasonographic and scintigraphic parameters were also evaluated.
  
  
  RESULTS
  The stent insertion was useful to improve renal parenchymal thickness and renal growth. No correlation was found between improved blood tests and scintigraphic values. The improvements of clinical and radiological data were strictly correlated with the time of stenting (>3 months).
  
  
  CONCLUSIONS
  The insertion of DJ stents as long-term internal urinary diversion is useful and safe. Late complications related to the use of stents are not frequent.
authors.affiliation: Paediatric Surgical Unit, Department of Surgical Sciences, Policlinico ''G. B. Rossi'', University of Verona, Verona, Italy.
authors.forename: E
authors.initials: E
authors.lastname: Erculiani
authors.forename: N
authors.initials: N
authors.lastname: Zampieri
authors.forename: M
authors.initials: M
authors.lastname: Cecchetto
authors.forename: F S
authors.initials: FS
authors.lastname: Camoglio
authors.forename: L
authors.initials: L
authors.lastname: Giacomello
mesh_terms: D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D011877:Radionuclide Imaging; D012189:Retrospective Studies; D015607:Stents; D016896:Treatment Outcome; D014517:Ureteral Obstruction / Q000000981:diagnostic imaging* / Q000503:physiopathology / Q000628:therapy*; D014551:Urinary Tract / Q000002:abnormalities*; D014570:Urologic Diseases / Q000150:complications / Q000503:physiopathology; D013520:Urologic Surgical Procedures