title: Complications associated with ureterorenoscopy (URS) related to treatment of urolithiasis: the Clinical Research Office of Endourological Society URS Global study.
abstract: BACKGROUND
  Ureterorenoscopy (URS) is a popular and growing option for management of ureteric and renal stones. The CROES URS Global Study was set up to assess the outcomes of URS in a large worldwide cohort of patients involving multiple centres. In this paper, we analysed the database for intra-operative and post-operative complications associated with ureterorenoscopy.
  
  
  METHODS
  The CROES database was established via collaboration between 114 centres in 32 countries worldwide, and information on both intra-operative and post-operative complications was collected electronically between January 2010 and October 2012.
  
  
  RESULTS
  On analysis of a total of 11,885 patients, the overall complication and stone-free rates were found to be 7.4 and 85.6 %, respectively. The intra-operative and post-operative complication rates were 4.2 and 2.6 %, respectively, and in total 5 deaths were reported in the study period. Taking into account different world economies, there were no differences in the complication rates between the developing and developed nations or between different centres from different continents.
  
  
  CONCLUSIONS
  Ureterorenoscopy is a safe and effective procedure for treatment of stones, the outcomes of which are broadly comparable in different parts of the world for similar patient and stone demographics.
authors: Department of Urology, University Hospital Southampton, Southampton, UK.
authors: B K
authors: BK
authors: Somani
authors: Department of Urology, IRCCS San Raffaele Scientific Institute, Ville Turro Division, Milan, Italy.
authors: G
authors: G
authors: Giusti
authors: Department of Urology, Changhai Hospital, Shanghai, China.
authors: Y
authors: Y
authors: Sun
authors: Department of Urology, Lillebaelt Hospital, Fredericia, Denmark.
authors: P J
authors: PJ
authors: Osther
authors: Department of Urology, City Hospital Number 40, Yekaterinburg, Russia.
authors: M
authors: M
authors: Frank
authors: Urology Unit, Second University of Naples, Naples, Italy.
authors: M
authors: M
authors: De Sio
authors: Department of Urology, Ege University School of Medicine, Izmir, Turkey.
authors: B
authors: B
authors: Turna
authors: Department of Urology, AMC University Hospital, Meibergdreef 9, 1105 AZ, Amsterdam Z-O, The Netherlands. j.j.delarosette@amc.uva.nl.
authors: J
authors: J
authors: de la Rosette
mesh_terms: D000328:Adult; D000368:Aged; D016063:Blood Loss, Surgical; D015331:Cohort Studies; D016208:Databases, Factual; D005260:Female; D005334:Fever / Q000453:epidemiology; D006801:Humans; D007431:Intraoperative Complications / Q000453:epidemiology* / Q000209:etiology; D007668:Kidney / Q000293:injuries / Q000601:surgery; D007669:Kidney Calculi / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D010149:Postoperative Pain / Q000453:epidemiology; D011183:Postoperative Complications / Q000453:epidemiology*; D019106:Postoperative Hemorrhage / Q000453:epidemiology; D018805:Sepsis / Q000453:epidemiology; D014513:Ureter / Q000293:injuries / Q000601:surgery; D014514:Ureteral Calculi / Q000601:surgery*; D018666:Ureteroscopy / Q000009:adverse effects / Q000379:methods*; D016055:Urinary Retention / Q000453:epidemiology; D014552:Urinary Tract Infections / Q000453:epidemiology; D052878:Urolithiasis / Q000601:surgery
keywords: Clavien–Dindo; Complications; Ureterorenoscopy; Urolithiasis