title: Percutaneous nephrolithotomy with one-shot dilation method: Is it safe in patients who had open surgery before?
abstract: BACKGROUND
  This study aimed to evaluate whether one-shot dilatation technique is as safe in patients with a history of open-stone surgery as it is in patients without previous open-stone surgery.
  
  
  METHODS
  Between January 2007 and February 2015, 82 patients who underwent percutaneous nephrolithotomy (PNL) surgery with one-shot dilation technique who previously had open-stone surgery were retrospectively reviewed and evaluated (Group 1). Another 82 patients were selected randomly among patients who had PNL with one-shot dilation technique, but with no history of open renal surgery (Group 2). Age, gender, type of kidney stone, duration of surgery, radiation exposure time, and whether or not there was any bleeding requiring perioperative and postoperative transfusion were noted for each patient.
  
  
  RESULTS
  The stone-free rates, operation and fluoroscopy time, and peroperative and postoperative complication rates were similar in both groups (p>0.05).
  
  
  CONCLUSIONS
  Our experience indicated that PNL with one-shot dilation technique is a reliable method in patients with a history of open-stone surgery.
authors.affiliation: Tepecik Training and Research Hospital Department of Urology, Izmir, Turkey;
authors.forename: Tufan
authors.initials: T
authors.lastname: Süelözgen
authors.affiliation: Tepecik Training and Research Hospital Department of Urology, Izmir, Turkey;
authors.forename: Cemal Selcuk
authors.initials: CS
authors.lastname: Isoglu
authors.affiliation: Department of Urology, Faculty of Medicine, Dumlupinar University, Evliya Celebi Training and Research Hospital, Kütahya, Turkey;
authors.forename: Hakan
authors.initials: H
authors.lastname: Turk
authors.affiliation: Department of Urology, Faculty of Medicine, Dumlupinar University, Evliya Celebi Training and Research Hospital, Kütahya, Turkey;
authors.forename: Mehmet
authors.initials: M
authors.lastname: Yoldas
authors.affiliation: Tepecik Training and Research Hospital Department of Urology, Izmir, Turkey;
authors.forename: Mustafa
authors.initials: M
authors.lastname: Karabicak
authors.affiliation: Tepecik Training and Research Hospital Department of Urology, Izmir, Turkey;
authors.forename: Batuhan
authors.initials: B
authors.lastname: Ergani
authors.affiliation: Ege University Faculty of Science, Department of Statistics, Izmir, Turkey.
authors.forename: Hayal
authors.initials: H
authors.lastname: Boyacioglu
authors.affiliation: Tepecik Training and Research Hospital Department of Urology, Izmir, Turkey;
authors.forename: Yusuf Ozlem
authors.initials: YO
authors.lastname: Ilbey
authors.affiliation: Tepecik Training and Research Hospital Department of Urology, Izmir, Turkey;
authors.forename: Ferruh
authors.initials: F
authors.lastname: Zorlu