title: Nonoliguric renal failure after transurethral resection of prostate.
abstract: OBJECTIVE
  To define the relation of nonoliguric renal failure to transurethral resection of the prostate (TURP), its clinical importance, and predictive factors.
  
  
  METHODS
  The files of 439 patients who had undergone TURP at Hacettepe University School of Medicine, Department of Urology, between January 1991 and 1994 were analyzed. The patients were divided into three groups according to postoperative serum creatinine concentration and the presence of clinical signs and symptoms of TUR syndrome (Group I: patients with preoperative and postoperative creatinine in the normal range; Group II: patients suffering nonoliguric renal failure; and Group III: patients with TUR syndrome). The data of the groups were compared in terms of factors influencing nonoliguric renal failure.
  
  
  RESULTS
  The mean postoperative concentrations of sodium, blood urea nitrogen, creatinine, and albumin in Groups II and III were statistically different from those in Group I (P < 0.001). There was a moderate relation between hyponatremia and the occurrence of nonoliguric renal failure (r(s) = -0.56). Capsule perforation increased the risk of nonoliguric renal failure 10.6 fold. All of the patients were managed by a conservative approach, and none of the patients died or progressed to end-stage renal disease. They were all discharged with a mean hospitalization period of 7 days and normal renal function tests.
  
  
  CONCLUSIONS
  Nonoliguric renal failure was thought to be an early step in the pathophysiology of TUR syndrome with acute renal failure. It is an asymptomatic clinical picture that is undiagnosed unless laboratory examinations are performed. A conservative therapeutic approach is enough.
authors.affiliation: Department of Urology, Hacettepe University School of Medicine, Ankara, Turkey.
authors.forename: C Y
authors.initials: CY
authors.lastname: Bilen
authors.forename: A
authors.initials: A
authors.lastname: Sahin
authors.forename: H
authors.initials: H
authors.lastname: Ozen
authors.forename: F T
authors.initials: FT
authors.lastname: Aki
authors.forename: O
authors.initials: O
authors.lastname: Oge
authors.forename: S
authors.initials: S
authors.lastname: Kendi
mesh_terms: D058186:Acute Kidney Injury / Q000097:blood / Q000150:complications / Q000209:etiology* / Q000503:physiopathology* / Q000628:therapy; D000368:Aged; D000369:Aged, 80 and over; D003404:Creatinine / Q000097:blood; D006801:Humans; D007668:Kidney / Q000293:injuries; D007902:Length of Stay; D008297:Male; D008353:Mannitol / Q000627:therapeutic use; D008875:Middle Aged; D009846:Oliguria / Q000209:etiology; D012996:Solutions; D007507:Therapeutic Irrigation; D020728:Transurethral Resection of Prostate / Q000009:adverse effects*; D014563:Urodynamics; D014950:Wounds, Penetrating / Q000209:etiology / Q000503:physiopathology
chemical_list: D012996:Solutions; D008353:Mannitol; D003404:Creatinine