title: Epidemiological analysis of polytrauma patients with kidney injuries in a university hospital.
abstract: OBJECTIVE
  To analyze the characteristics of trauma patients with renal lesions treated at a university hospital in Curitiba.
  
  
  METHODS
  We conducted a retrospective, cross-sectional study guided by review of medical records of trauma victims who underwent surgical treatment. The variables analyzed were age, gender, mechanism of injury, degree of kidney damage, conduct individualized according to the degree of renal injury, associated injuries, complications and deaths. We classified lesions according to the American Association of Trauma Surgery (TSAA).
  
  
  RESULTS
  We analyzed 794 records and found renal lesions in 33 patients, with mean age 29.8 years, most (87.8%) being male. Penetrating trauma accounted for 84.8% of cases. The most common renal injuries were grade II (33.3%), followed by grade I (18.1%), III, IV and V. Nephrectomy treated 45.4% of injuries, 73.3% being total nephrectomy, and 45.4% by nephrorraphy. In 9% treatment was non-surgical. Only 12.1% of patients had isolated renal lesions. Complications ensued in 15.1% and mortality was 6.06%.
  
  
  CONCLUSIONS
  The surgical approach was preferred due to penetrating trauma mechanism. We achieved low rates of complications and deaths, and neither case could be directly related to kidney damage, and there were patients with multiple lesions. In this sample, we could not observe a direct relationship between kidney damage and complications, deaths or the type of conduct employed.
authors.affiliation: Escola de Medicina, Pontifícia Universidade Católica do Paraná, Curitiba, PR, Brasil.
authors.forename: Bianca Luiza Valduga
authors.initials: BL
authors.lastname: Guareschi
authors.affiliation: Escola de Medicina, Pontifícia Universidade Católica do Paraná, Curitiba, PR, Brasil.
authors.forename: Carla Martinez Menini
authors.initials: CM
authors.lastname: Stahlschmidt
authors.affiliation: Hospital Universitário Cajuru, Curitiba, PR, Brasil.
authors.forename: Karin
authors.initials: K
authors.lastname: Becker
authors.affiliation: Hospital Universitário Cajuru, Curitiba, PR, Brasil.
authors.forename: Marianna Fergutz S
authors.initials: MF
authors.lastname: Batista
authors.affiliation: Hospital Universitário Cajuru, Curitiba, PR, Brasil.
authors.forename: Patricia Longhi
authors.initials: PL
authors.lastname: Buso
authors.affiliation: Hospital Universitário Cajuru, Curitiba, PR, Brasil.
authors.forename: Luiz Carlos Von
authors.initials: LC
authors.lastname: Bahten
mesh_terms: D000328:Adult; D003430:Cross-Sectional Studies; D005260:Female; D006785:Hospitals, University; D006801:Humans; D007668:Kidney / Q000293:injuries* / Q000601:surgery; D008297:Male; D009104:Multiple Trauma / Q000453:epidemiology* / Q000601:surgery; D012189:Retrospective Studies; D014949:Wounds, Nonpenetrating