title: [Survival in acute renal failure with conventional therapy or continuous replacement therapy].
abstract: OBJECTIVE
  To know the survival rate in patients with RIFLE I and II stages on acute renal failure, treated with supportive care or continuous renal replacement therapy with PRISMA machine, at an intensive care unit.
  
  
  METHODS
  There were included patients of both sexes, aged 16 to 69 years, with acute renal failure in RIFLE I and II stages and score of scale APACHE II lower than 36 points. The sample studied was divided in two groups: a group was treated with supportive care, and the other group received continuous renal replacement therapy via PRISMA machine. We compared mortality between both groups and the association with the RIFLE stages with Pearson's chi-squared test.
  
  
  RESULTS
  The average score of the scale APACHE I was 14 points, and the probability of death was 15 %. The patients with acute renal failure RIFLE I were 54.5 % and RIFLE II 45.5 %, with mortality of 30.4 % and 38.8 %, respectively. Patients in RIFLE I stage who received supportive care and continuous replacement therapy had non-statistical differences in mortality (p = 0.356). The mortality in patients with acute renal failure in RIFLE II stage treated with continuous replacement therapy was higher (p = 0.000).
  
  
  CONCLUSIONS
  Because of its accessibility and lower mortality, supportive care should be the initial procedure in patients with acute renal failure in RIFLE I and II stages.
authors.affiliation: Unidad de Cuidados Intensivos, Hospital de Especialidades, Centro Médico Nacional La Raza, Instituto Mexicano del Seguro Social, Distrito Federal, México. sanvemart@hotmail.com.
authors.forename: Martín
authors.initials: M
authors.lastname: Santibáñez-Velázquez
authors.forename: Felipe
authors.initials: F
authors.lastname: Sánchez-Montoya
authors.forename: Luis
authors.initials: L
authors.lastname: Alvirde-Gutiérrez
mesh_terms: D058186:Acute Kidney Injury / Q000401:mortality* / Q000628:therapy*; D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D017582:Renal Replacement Therapy; D015996:Survival Rate; D055815:Young Adult
keywords: APACHE; Acute kidney injury; Renal replacement therapy