title: [Percutaneous nephrolithotomy of staghorn calculi in patients by mini-tract and standard-tract].
abstract: OBJECTIVE
  To compare the outcome of mini-tract vs standard-tract percutaneous nephrolithotomy (PCNL) in staghorn calculi.
  
  
  METHODS
  Between May 2009 and May 2011, 122 patients with renal staghorn calculi were treated by PCNL. Fifty-six patients underwent mini-PCNL and the others underwent standard-PCNL. The therapeutic effect and complication of the 2 groups were compared.
  
  
  RESULTS
  The two groups had comparable demographic conditions. Although the operation time was significantly longer in mini-PCNL group [(126±24.5) min vs (98±18.9) min], there was no striking difference in hospital stay [(5.7±1.3) d vs (5.3±1.1) d], hemoglobin drop [(9.5±3.2) g/L vs (10.5±3.3) g/L], stone-free state before charge (91.1% vs 89.4%) and complications.
  
  
  CONCLUSIONS
  The efficacy and safety of mini-PCNL and standard-PCNL are not significantly different.
authors.affiliation: Department of Urology, Second Xiangya Hospital, Central South University, Changsha 410011, China.
authors.forename: Ran
authors.initials: R
authors.lastname: Xu
authors.forename: Song
authors.initials: S
authors.lastname: Li
authors.forename: Hongqing
authors.initials: H
authors.lastname: Zhao
authors.forename: Zhitao
authors.initials: Z
authors.lastname: Dong
authors.forename: Hongyi
authors.initials: H
authors.lastname: Jiang
authors.forename: Xiaokun
authors.initials: X
authors.lastname: Zhao
authors.forename: Ren
authors.initials: R
authors.lastname: Liu
authors.forename: Yi
authors.initials: Y
authors.lastname: Hou
mesh_terms: D000328:Adult; D006801:Humans; D007669:Kidney Calculi / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D008904:Miniaturization; D009403:Nephrostomy, Percutaneous / Q000379:methods*; D011183:Postoperative Complications / Q000209:etiology; D012189:Retrospective Studies