title: Retrograde Intrarenal Surgery is equally efficient and safe in patients with different American Society of Anesthesia physical status.
abstract: OBJECTIVE
  To assess the efficacy and safety of Retrograde Intrarenal Surgery to treat renal stones in patients with different American Society of Anesthesia (ASA) physical status.
  
  
  METHODS
  We performed a retrospective analysis of 150 patients who underwent Retrograde Intrarenal Surgery for renal stone between October 2013 and December 2014. Patients were categorized into three groups according to their ASA physical status: ASA Class 1 (Group 1, n = 23), ASA Class 2 (Group 2, n = 113) and ASA Class 3 (Group 3, n = 14). We documented and stratified the per-operative and postoperative complications according to modified Satava Classification System and Clavien-Dindo Classification.
  
  
  RESULTS
  The mean age of the patients was 44 years. The total stone-free rate was 81.2%. According to the groups, the stone-free rate was 75% in Group 1, 82.5% in Group 2, and 83.3% in Group 3 (p   =   0.340). Per-operative and postoperative complications were recorded in 12% (n = 18) and 5.3% (n = 8) of the patients. We did not find significant difference in terms of per-operative and postoperative complication rates among patients with different ASA physical status (p(per-operative) = 0.392 and p(postoperative) = 0.136).
  
  
  CONCLUSIONS
  Retrograde Intrarenal Surgery is an effective and safe surgery with high stone-free rates and low morbidity in patients with different ASA physical status.
authors.affiliation: a Third Department of Urology, Ministry of Health , Ankara Numune Research and Training Hospital , Ankara , Turkey ;
authors.forename: Ozer
authors.initials: O
authors.lastname: Guzel
authors.affiliation: a Third Department of Urology, Ministry of Health , Ankara Numune Research and Training Hospital , Ankara , Turkey ;
authors.forename: Altug
authors.initials: A
authors.lastname: Tuncel
authors.affiliation: a Third Department of Urology, Ministry of Health , Ankara Numune Research and Training Hospital , Ankara , Turkey ;
authors.forename: Melih
authors.initials: M
authors.lastname: Balci
authors.affiliation: b Department of Urology, Ministry of Health , Diskapi Yildirim Beyazit Research and Training Hospital , Ankara , Turkey.
authors.forename: Nihat
authors.initials: N
authors.lastname: Karakoyunlu
authors.affiliation: a Third Department of Urology, Ministry of Health , Ankara Numune Research and Training Hospital , Ankara , Turkey ;
authors.forename: Yilmaz
authors.initials: Y
authors.lastname: Aslan
authors.affiliation: a Third Department of Urology, Ministry of Health , Ankara Numune Research and Training Hospital , Ankara , Turkey ;
authors.forename: Anil
authors.initials: A
authors.lastname: Erkan
authors.affiliation: a Third Department of Urology, Ministry of Health , Ankara Numune Research and Training Hospital , Ankara , Turkey ;
authors.forename: Cagdas
authors.initials: C
authors.lastname: Senel
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000758:Anesthesia; D000776:Anesthesiology; D005260:Female; D006304:Health Status; D006801:Humans; D007668:Kidney / Q000601:surgery*; D007669:Kidney Calculi / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D010361:Patients / Q000145:classification; D011183:Postoperative Complications / Q000453:epidemiology / Q000209:etiology; D012189:Retrospective Studies; D012955:Societies, Medical; D014481:United States; D013520:Urologic Surgical Procedures / Q000009:adverse effects / Q000379:methods; D055815:Young Adult
keywords: American Society of Anesthesia; complication; physical status; retrograde intrarenal surgery; treatment