title: [Flexible ureteroscope damages. Evaluation of university hospital service equipment].
abstract: OBJECTIVE
  To evaluate predictors of flexible ureterorenoscopes breakage and damage of their optical beam.
  
  
  METHODS
  Retrospective survey, single center on 393 interventions with 4 flexible ureterorenoscopes between January 2009 and March 2013. We analyzed factors linked to patient, pathology and surgical technique.
  
  
  RESULTS
  We identified 21 major accidents, a breakage rate of 5.34% and 76 pixels losses in the maintenance of endoscopes and 10 during the procedure. The only statistically significant predictor of loss was the cumulative duration of operating time since the last repair (P=0.04, OR=1.001 [1-1001]). For lesions of the optical beam between the procedures, parameters appearing as significant were the ureterorenoscope model (P=0.01, OR=2.558, 95% CI [1229-5326]), the use of instruments by the working channel: the laser (P=0.02, OR=2.06, 95% CI [1109-3827]), or the use of endoluminal graspers (P=0.007, OR=0.467, 95% CI [0269-0809]). Intraoperatively, the number of open or laparoscopic surgery (P=0.007, OR=3.105, 95% CI [1364-7068]), duration of intervention (P=0.01, OR=1.023, 95% CI [1.006-1041]) and the cumulative duration of intervention (P=0.003, OR=1.001, 95% CI [1-1002]) appeared to be statistically significant.
  
  
  CONCLUSIONS
  The only predictor of loss of equipment under repair was the cumulative duration of operation time. It has not been demonstrated any difference between ureterorenoscopes. It was during the endoscopes disinfection that the majority of optical beam lesions take place.
authors: Service d'urologie transplantation, CHU d'Amiens, avenue Laennec, 80480 Salouel, France. Electronic address: julasselin@gmail.com.
authors: J
authors: J
authors: Lasselin
authors: Service d'urologie transplantation, CHU d'Amiens, avenue Laennec, 80480 Salouel, France.
authors: L
authors: L
authors: Viart
authors: Service de rhumatologie, CHU d'Amiens, place Victor-Pauchet, 80000 Amiens, France.
authors: P
authors: P
authors: Lasselin-Boyard
authors: Service d'urologie transplantation, CHU d'Amiens, avenue Laennec, 80480 Salouel, France.
authors: G
authors: G
authors: Raynal
authors: Service d'urologie transplantation, CHU d'Amiens, avenue Laennec, 80480 Salouel, France.
authors: F
authors: F
authors: Saint
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015992:Body Mass Index; D004203:Disinfection / Q000706:statistics & numerical data; D004867:Equipment Design; D004868:Equipment Failure / Q000706:statistics & numerical data; D017743:Equipment Reuse / Q000706:statistics & numerical data; D005260:Female; D005602:France / Q000453:epidemiology; D006785:Hospitals, University; D006801:Humans; D008297:Male; D008875:Middle Aged; D061646:Operative Time; D055100:Optical Fibers; D012189:Retrospective Studies; D012307:Risk Factors; D020709:Ureteroscopes / Q000009:adverse effects / Q000706:statistics & numerical data; D018666:Ureteroscopy / Q000009:adverse effects / Q000295:instrumentation* / Q000379:methods / Q000706:statistics & numerical data; D052878:Urolithiasis / Q000175:diagnosis / Q000453:epidemiology / Q000628:therapy; D014572:Urology / Q000295:instrumentation
keywords: Breakdowns; Breaks; Casse; Faisceau optique; Flexible ureteroscope; Optical beam; Pannes; Urétérorénoscope souple