title: Guide wire knot during double J catheter insertion: case report.
abstract: OBJECTIVE
  To report one case of intrapyelic loop of a guide wire during double J catheter insertion.
  
  
  METHODS
  We report the case of a 24 year-old female, with the diagnosis obstructive uropathy secondary to pelvic tumor who required double J catheter insertion for urinary diversion. A loop of the guide wire was formed during the procedure which was finally solved without aggressive measures.
  
  
  RESULTS
  We report the case of a rare complication appeared during urinary catheter insertion procedure, as well as a review of the current literature.
  
  
  CONCLUSIONS
  The use of guide wires and endourological catheters is not free of complications that may require aggressive measures to be solved.
authors.affiliation: Urology Department, Hospital Clínico San Carlos, Madrid, Spain. eduseros@yahoo.es
authors.forename: Eduardo Useros
authors.initials: EU
authors.lastname: Rodríguez
authors.forename: Ignacio Tomás Castillón
authors.initials: IT
authors.lastname: Vela
authors.forename: María Eugenia León
authors.initials: ME
authors.lastname: Rueda
authors.forename: Angel Nellyt Silmi
authors.initials: AN
authors.lastname: Moyano
mesh_terms: D004868:Equipment Failure; D005260:Female; D006801:Humans; D014513:Ureter; D014546:Urinary Catheterization / Q000295:instrumentation*; D055815:Young Adult