title: Predictors of in-hospital mortality following redo cardiac surgery: Single center experience.
abstract: OBJECTIVE
  Redo cardiac operations represent one of the main challenges in heart surgery. The purpose of the study was to analyze the predictors of in-hospital mortality in patients undergoing reoperative cardiac surgery by a single surgical team.
  
  
  METHODS
  A total of 1367 patients underwent cardiac surgical procedures and prospectively entered into a computerized database. Patients were divided into 2 groups based on the reoperative cardiac surgery (n = 109) and control group (n = 1258). Uni- and multivariate logistic regression analysis were performed to evaluate the possible predictors of hospital mortality.
  
  
  RESULTS
  Mean age was 56 ± 13, and 46% were female in redo group. In-hospital mortality was 4.6 vs. 2.2%, p = 0.11. EuroSCORE (6 vs. 3; p < 0.01), cardiopulmonary bypass time (90 vs. 71 min; p < 0.01), postoperative bleeding (450 vs. 350 ml; p < 0.01), postoperative atrial fibrillation (AF) (29 vs. 16%; p < 0.01), and inotropic support (58 vs. 31%; p = 0.001) were significantly different. These variables were entered into uni- and multivariate regression analysis. Postoperative AF (OR1.76, p = 0.007) and EuroSCORE (OR 1.42, p < 0.01) were significant risk factors predicting hospital mortality.
  
  
  CONCLUSIONS
  Reoperative cardiac surgery can be performed under similar risks as primary operations. Postoperative AF and EuroSCORE are predictors of in-hospital mortality for redo cases.
authors.forename: Yucel
authors.initials: Y
authors.lastname: Colkesen
authors.forename: Isa
authors.initials: I
authors.lastname: Coskun
authors.forename: Murat
authors.initials: M
authors.lastname: Cayli
authors.forename: Oner
authors.initials: O
authors.lastname: Gulcan
keywords: hospital mortality; redo cardiac surgery; risk factors