title: Association of pre and intraoperative variables with postoperative complications in coronary artery bypass graft surgery.
abstract: OBJECTIVE
  To associate the pre- and intraoperative variables with postoperative complications of patients undergoing coronary artery bypass graft surgery.
  
  
  METHODS
  The pre- and intraoperative risk factors of individuals of both genders with diagnosis of coronary insufficiency undergoing coronary artery bypass graft have been studied.
  
  
  RESULTS
  Fifty-eight individuals with median age 62 ± 10 year-old were included in the study, 67% of whom were male. Fourteen (24.1%) patients were smokers, 39 (67.2%) had previous myocardial infarction history, 11 (19%) had undergone coronary angioplasty, 74% had hypertension, 27% had diabetes mellitus, 64% had dyslipidemia and 15.5% had chronic obstructive pulmonary disease. Eighteen (31%) patients presented postoperative complications, most frequent being: infection in surgical incision, difficulties in deambulation, dyspnea, urinary infection and generalized weakness. Male patients had fewer complications than females (P=0.005). Patients with chronic obstructive pulmonary disease remained hospitalized for longer time periods (P=0.019). Postoperative complications occurred in 50% of the patients with creatinine increased, while only 27.1% of the patients with normal value of creatinine had complications (P=0.049). In addition, complications occurred in 50% of the patients with diabetes mellitus, while only 23.8% of patients without diabetes mellitus had complications (P=0.032). The intraoperative factors showed no statistically significant differences.
  
  
  CONCLUSIONS
  The preoperative factors are associated with postoperative complications in patients undergoing coronary artery bypass graft surgery.
authors.forename: Camila
authors.initials: C
authors.lastname: Gimenes
authors.forename: Silvia Regina
authors.initials: SR
authors.lastname: Barrile
authors.forename: Bruno
authors.initials: B
authors.lastname: Martinelli
authors.forename: Carlos Fernando
authors.initials: CF
authors.lastname: Ronchi
authors.forename: Eduardo Aguilar
authors.initials: EA
authors.lastname: Arca
authors.forename: Rodrigo
authors.initials: R
authors.lastname: Gimenes
authors.forename: Marina Politi
authors.initials: MP
authors.lastname: Okoshi
authors.forename: Katashi
authors.initials: K
authors.lastname: Okoshi
mesh_terms: D000368:Aged; D000704:Analysis of Variance; D001026:Coronary Artery Bypass / Q000009:adverse effects*; D005260:Female; D006801:Humans; D007902:Length of Stay; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000209:etiology*; D018570:Risk Assessment; D012307:Risk Factors; D012720:Severity of Illness Index; D012737:Sex Factors; D013997:Time Factors; D016896:Treatment Outcome