title: [Preoperative factors for the development of acute kidney injury after cardiac surgery: prospective study].
abstract: OBJECTIVE
  To evaluate the clinical characteristics and co-morbidities associated with development of Acute kidney injury (AKI) after cardiac surgery in patients of a predominantly tertiary care university hospital.
  
  
  METHODS
  One hundred and fifty cardiac surgery patients were prospectively studied at the Botucatu School of Medicine University Hospital - UNESP, using a protocol which started 48h before and finished 48h after surgery. AKI was defined as a 30% increase in baseline serum creatinine.
  
  
  RESULTS
  Were expressed as mean +/- standard deviation or median, with a significance level of 5%. Results: There was a slight male predominance (57%); mean age of the studied population was 56+/-14 years. Sixty-five per cent of patients underwent myocardial revascularization. AKI was diagnosed in 34% of cases. Multivariate analysis showed that age over 60 years and peripheral vascular disease were significantly associated with AKI development.
  
  
  CONCLUSIONS
  AKI was a common complication in cardiac surgery patients at this hospital. AKI was associated with age over 60 years and presence of peripheral vascular disease.
authors.affiliation: Departamentos de Clínica Médica, de Neurologia e Psiquiatria e de Cirurgia e Ortopedia da Faculdade de Medicina deBotucatu - UNESP, Botucatu, SP.
authors.forename: Ana Cláudia
authors.initials: AC
authors.lastname: Kochi
authors.forename: Antonio Sergio
authors.initials: AS
authors.lastname: Martins
authors.forename: Maria Cristina Pereira
authors.initials: MC
authors.lastname: Lima
authors.forename: Luis Cuadrado
authors.initials: LC
authors.lastname: Martin
authors.forename: André Luis
authors.initials: AL
authors.lastname: Balbi
mesh_terms: D058186:Acute Kidney Injury / Q000453:epidemiology / Q000209:etiology*; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001938:Brazil / Q000453:epidemiology; D002318:Cardiovascular Diseases / Q000453:epidemiology / Q000601:surgery*; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction; D009204:Myocardial Revascularization / Q000009:adverse effects*; D016491:Peripheral Vascular Diseases / Q000601:surgery; D011184:Postoperative Period; D011300:Preoperative Care; D012737:Sex Factors; D055815:Young Adult