title: [Risk analysis for hospital mortality after operations for type A aortic dissection].
abstract: OBJECTIVE
  To analyze the risk factors for hospital mortality after operations for type A aortic dissection.
  
  
  METHODS
  Totally 766 consecutive patients (586 male and 180 female patient, aged (45±12) years, ranging from 16 to 78 years), who underwent surgery for type A aortic dissection from January 2001 to December 2010, were studied retrospectively. Preoperative and operation related clinic factors were analyzed by univariate analysis, followed by Logistic regression model, to identify the risk factors of hospital mortality.
  
  
  RESULTS
  Overall, 37 patients (4.8%) died during hospitalization. On univariate analysis, significant risk factors for hospital mortality were male, acute status, renal dysfunction, cardiac dysfunction, cardiopulmonary bypass time, duration of operation, volume of blood transfusion, re-operation for bleeding (χ2=4.008-27.093, P<0.05). On Logistic regression model, independent risk factors were acute status (OR=2.784, 95%CI: 1.166-6.649, P=0.021), renal dysfunction (OR=6.285, 95%CI: 1.738 - 22.723, P=0.005), cardiac dysfunction (OR=3.052, 95%CI: 1.083-8.606, P=0.035), re-operation for bleeding (OR=3.690, 95%CI: 1.262-10.791, P=0.017), volume of blood transfusion (OR=1.033, 95%CI: 1.008-1.058, P=0.010). Additionally, male (OR=0.387, 95%CI: 0.177-0.848, P=0.018) was protective factor, and alternatively, female was indeed one of the independent risk factors for hospital mortality.
  
  
  CONCLUSIONS
  Female, acute status, renal dysfunction, cardiac dysfunction, re-operation for bleeding, volume of blood transfusion were independent risk factors for hospital mortality after operations for type A aortic dissection.
authors.affiliation: Department of Cardiovascular Surgery, Cardiovascular Institute and Fuwai Hospital, Peking Union Medical College and Chinese Academy of Medical Science, Beijing 100037, China.
authors.forename: Liang
authors.initials: L
authors.lastname: Wang
authors.forename: Qian
authors.initials: Q
authors.lastname: Chang
authors.forename: Cun-tao
authors.initials: CT
authors.lastname: Yu
authors.forename: Xiao-gang
authors.initials: XG
authors.lastname: Sun
authors.forename: Xiang-yang
authors.initials: XY
authors.lastname: Qian
authors.forename: Chuan
authors.initials: C
authors.lastname: Tian
authors.forename: Lei
authors.initials: L
authors.lastname: Liu
authors.forename: Yan-hai
authors.initials: YH
authors.lastname: Meng
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000784:Aortic Dissection / Q000401:mortality / Q000601:surgery*; D017545:Aortic Aneurysm, Thoracic / Q000401:mortality / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D017052:Hospital Mortality; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D018570:Risk Assessment; D055815:Young Adult