title: Efficacy and safety of mini percutaneous nephrolithotomy in obese patients.
abstract: OBJECTIVE
  We aimed to evaluate the effect of obesity on surgical outcomes of mini percutaneous nephrolithotomy (Mini-PNL).
  
  
  METHODS
  Hundred and eighty two Mini-PNL procedures were performed between May 2013 and January 2015 and their results were evaluated retrospectively. Patients were classified as non-obese (BMI, 18.5-30 kg/m(2)) and obese (≥30 kg/m(2)) groups. Obese and non-obese patients were compared according to pre-operative demographic values, intra-operative surgery techniques and post-operative results.
  
  
  RESULTS
  BMI values of 133 patients were lower than 30 kg/m(2) while 49 patient's BMI values were higher than 30 kg/m(2). There were no significant difference between operation time, fluoroscopy time, number of access and access sites when two groups were compared. No significant difference was found in total length of hospital stay, hemoglobin drop, and complication rates. Stone-free rates were 70.7 % in the non-obese and 71.4 % in the obese group (p = 0.9).
  
  
  CONCLUSIONS
  Mini-PNL procedure is a safe and effective treatment modality, which should be strongly considered for obese patients with appropriate sized stones.
authors: Department of Urology, Haseki Training and Research Hospital, Istanbul, Turkey.
authors: Fatih
authors: F
authors: Akbulut
authors: Department of Urology, Haseki Training and Research Hospital, Istanbul, Turkey.
authors: Onur
authors: O
authors: Kucuktopcu
authors: Department of Urology, Haseki Training and Research Hospital, Istanbul, Turkey.
authors: Emre
authors: E
authors: Kandemir
authors: Department of Urology, Haseki Training and Research Hospital, Istanbul, Turkey.
authors: Burak
authors: B
authors: Ucpinar
authors: Department of Urology, Haseki Training and Research Hospital, Istanbul, Turkey.
authors: Faruk
authors: F
authors: Ozgor
authors: Department of Urology, Haseki Training and Research Hospital, Istanbul, Turkey.
authors: Abdulmuttalip
authors: A
authors: Simsek
authors: Department of Urology, Haseki Training and Research Hospital, Istanbul, Turkey.
authors: Burak
authors: B
authors: Arslan
authors: Department of Urology, Haseki Training and Research Hospital, Istanbul, Turkey.
authors: Akif
authors: A
authors: Erbin
authors: Department of Urology, Haseki Training and Research Hospital, Istanbul, Turkey.
authors: Fatih
authors: F
authors: Yanaral
authors: Department of Urology, Haseki Training and Research Hospital, Istanbul, Turkey.
authors: Murat
authors: M
authors: Binbay
authors: Department of Urology, Haseki Training and Research Hospital, Istanbul, Turkey.
authors: Gokhan
authors: G
authors: Gurbuz
keywords: Complications; Mini percutaneous nephrolithotomy; Obesity; Safety; Surgical outcomes