title: [Supine percutaneous nephrolithotripsy].
abstract: METHODS
  The report included the results of PNL in 64 patients. In 34 of patients (Group I), the surgery was performed in the prone position, and in 30 patients (Group II) - in semilateral (supine) position. The study included patients with one or more pelvic stones larger than 2.5 cm and requiring only a single percutaneous approach, with a body mass index less than 30 kg/m2 and the absence of contraindications to the PNL in the prone position. Average size of stones was 3.2 cm in Group I, and 3.0 cm in Group II. For the comparative analysis between the two groups, timing of surgery, intra- and postoperative complication rates, extent of blood loss and length of hospital stay were evaluated.
  
  
  RESULTS
  Analysis of the results of PNL performed in prone and supine position of patient showed the absence of statistically significant difference in the effectiveness of the surgery, extent of blood loss, and length of hospital stay between the two groups. Significant difference was observed only in the timing of surgery (Group I, 68 min; Group II, 43 min).
  
  
  CONCLUSIONS
  When performing PNL in patients with uncomplicated nephrolithiasis in prone and supine position of patients on the operating table, significant difference was observed only in the timing of surgery.
authors.forename: B K
authors.initials: BK
authors.lastname: Komiakov
authors.forename: B G
authors.initials: BG
authors.lastname: Guliev
mesh_terms: D000328:Adult; D016063:Blood Loss, Surgical; D005260:Female; D006801:Humans; D007669:Kidney Calculi / Q000601:surgery; D007902:Length of Stay / Q000706:statistics & numerical data; D008096:Lithotripsy / Q000379:methods*; D008297:Male; D053040:Nephrolithiasis / Q000453:epidemiology / Q000601:surgery*; D011183:Postoperative Complications / Q000209:etiology; D016684:Prone Position; D016683:Supine Position; D013997:Time Factors; D014545:Urinary Calculi / Q000601:surgery