title: [Robotic partial nephrectomy: five years retrospective analysis at a single center].
abstract: BACKGROUND
  The aim of this study is to assess perioperative outcomes in a large series of robotic partial nephrectomy.
  
  
  METHODS
  We performed a retrospective analysis of 413 patients undergoing a robotic partial nephrectomy in a single center between June 2006 and December 2011. We analyzed demographic characteristics, operative and postoperative outcomes.
  
  
  RESULTS
  Mean age was 58.6±11.9 years, body mass index was 30.5±7.1 kg/m2 and median ASA score 3. Mean tumor size was 3.2±1.66 cm and was divided in low, moderate and high RENAL nephrometry score respectively in 40%, 44% and 16%. Operative time and warm ischemia time were respectively 191 and 21min. Mean estimated blood loss was 200 mL and there were 4.3% major complications (Clavien-Dindo System). Mean length of stay was 3.6 days. The latest estimated glomerular filtration rate (eGFR) was 74.84 mL/min×1.73 m2 with a mean decrease of 8.6%. In multivariate analysis, Charlson comorbidity index (P=0.005), preoperative eGFR (P<0.001) and warm ischemia time (P=0.0025) were found to be independent predictors of latest postoperative renal function.
  
  
  CONCLUSIONS
  Robotic partial nephrectomy is feasible and safe in experienced hands. In our study preoperative renal function, Charlson comorbidity index and warm ischemia time were independent predictors of latest eGFR.
authors.affiliation: Section of Laparoscopic and Robotic Surgery, Glickman Urological and Kidney Institute, Cleveland Clinic, 9500 Euclid Avenue, Cleveland Ohio, Cleveland 44195, États-Unis.
authors.forename: R
authors.initials: R
authors.lastname: Eyraud
authors.forename: J A
authors.initials: JA
authors.lastname: Long
authors.forename: J
authors.initials: J
authors.lastname: Guillotreau
authors.forename: R J
authors.initials: RJ
authors.lastname: Stein
authors.forename: J H
authors.initials: JH
authors.lastname: Kaouk
authors.forename: G P
authors.initials: GP
authors.lastname: Haber
mesh_terms: D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D009392:Nephrectomy / Q000379:methods*; D012189:Retrospective Studies; D012371:Robotics; D013997:Time Factors