title: [Management endourologic of pyeloureteral junction stenosis].
abstract: OBJECTIVE
  To report our experience with endourologic methods in the treatment of pyeloureteral stenosis in children.
  
  
  METHODS
  From July 2004, 7 patients from 9 months to 15 years old with pyeloureteral junction stenosis (PUJ) diagnosis underwent endourologic repair. An endourological dilatation was made under radioscopic control. The procedures consist of an initial cystoscopy with a retrograde placement of catheter (4 or 5 Fr) and the guide wire (0,014''-or 0,035''). The high pressure balloon (3 to 5 Fr) was then railroad over the wire and positioned across the stenosis for dilatation. A double J stent (3 to 6 Fr) was then introduced, remaining it during 6 weeks.
  
  
  RESULTS
  There was no intraoperative complications. Median inhospital stay was 2 days (range, 2 to 8). The double J stent was removed without complications. All patients are asymptomatic with improvement in excretion times (MAG3 renography) and antero-posterior renal pelvis diameter (ultrasound measurement).
  
  
  CONCLUSIONS
  Balloon dilatation is a viable option in the management of PUJ obstruction even in children under one year old, with minimal morbidity.
authors.affiliation: Servicio Cirugía Pediátrica, Hospital Infantil Gregorio Marañón, Madrid. parente80@hotmail.com
authors.forename: A
authors.initials: A
authors.lastname: Parente Hernández
authors.forename: J M
authors.initials: JM
authors.lastname: Angulo Madero
authors.forename: R
authors.initials: R
authors.lastname: Romero Ruiz
authors.forename: A
authors.initials: A
authors.lastname: Cañizo López
authors.forename: A
authors.initials: A
authors.lastname: Laín Fernández
authors.forename: J
authors.initials: J
authors.lastname: Vázquez Estévez
mesh_terms: D000293:Adolescent; D002404:Catheterization; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007682:Kidney Pelvis; D008297:Male; D012189:Retrospective Studies; D014517:Ureteral Obstruction / Q000628:therapy*