title: Preoperative prolonged steroid use is not associated with intraoperative blood transfusion in noncardiac surgical patients.
abstract: BACKGROUND
  Prolonged steroid therapy is reportedly associated with changes in coagulation, suggesting increased intraoperative bleeding or hypercoagulability. The aim of this retrospective study was to assess whether long-term steroid use was associated with increased transfusion requirements, infection, or hypercoagulability in adults undergoing noncardiac surgery.
  
  
  METHODS
  In this study the authors evaluated 363,897 patients from the American College of Surgeons National Surgical Quality Improvement Program database. Patients with current pneumonia, ventilator dependence, coma, tumor involving the central nervous system, disseminated cancer, preoperative open wound/wound infection, and/or bleeding disorders were excluded. Each steroid user was matched to a nonsteroid user based on propensity score and type of surgery.
  
  
  RESULTS
  296,059 patients met the inclusion criteria, of whom 7,760 (2.6%) were taking steroids preoperatively. The incidence of intraoperative erythrocyte transfusion was 3.6% in the steroid user and 7.3% in non-steroid-user groups. After matching, the mean [95% confidence interval] number of units transfused was 0.22 [0.19, 0.25] units in the nonsteroid group and 0.19 [0.17, 0.22] units in the steroid group which was not statistically significant (P = 0.24, Wald test). Steroid users were 24% [2, 49] more likely to experience 30-day postoperative systemic infection and 21% [3, 41] more likely to experience postoperative wound infection than nonusers. The risks of postoperative thromboembolic complications did not differ significantly.
  
  
  CONCLUSIONS
  The effect of prolonged steroid use on bleeding, if any, thus seems likely to be small and is probably of limited clinical consequence. In contrast, corticosteroid use augments the risk of both systemic and wound infections.
authors.affiliation: Department of Outcomes Research, Cleveland Clinic, Cleveland, Ohio, USA. alparslanturan@yahoo.com
authors.forename: Alparslan
authors.initials: A
authors.lastname: Turan
authors.forename: Jarrod E
authors.initials: JE
authors.lastname: Dalton
authors.forename: Patricia L
authors.initials: PL
authors.lastname: Turner
authors.forename: Daniel I
authors.initials: DI
authors.lastname: Sessler
authors.forename: Andrea
authors.initials: A
authors.lastname: Kurz
authors.forename: Leif
authors.initials: L
authors.lastname: Saager
mesh_terms: D000305:Adrenal Cortex Hormones / Q000008:administration & dosage* / Q000009:adverse effects; D000328:Adult; D000368:Aged; D016063:Blood Loss, Surgical / Q000517:prevention & control; D001803:Blood Transfusion / Q000706:statistics & numerical data; D013505:Digestive System Surgical Procedures / Q000009:adverse effects; D004334:Drug Administration Schedule; D005260:Female; D006801:Humans; D007431:Intraoperative Complications / Q000139:chemically induced / Q000453:epidemiology / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D011300:Preoperative Care / Q000009:adverse effects; D011446:Prospective Studies; D012189:Retrospective Studies; D016896:Treatment Outcome
chemical_list: D000305:Adrenal Cortex Hormones