title: Risk factors for intraoperative atrial fibrillation: a retrospective analysis of 10,563 lung operations in a single center.
abstract: BACKGROUND
  Risk factors of postoperative atrial fibrillation (AF) in patients undergoing general thoracic operations have been extensively studied. This study investigated risk factors for intraoperative AF. Identification of patients vulnerable for intraoperative AF during lung operations will benefit from improved preoperative and intraoperative management that will ultimately decrease intraoperative complications. This study retrospectively evaluated the risk factors for intraoperative AF during lung operations.
  
  
  METHODS
  Medical records of 10,638 patients who underwent lung operations from January 1, 2006, to May 20, 2011, at the Shanghai Chest Hospital were reviewed. The analysis excluded 75 patients with preoperative AF or nonsinus rhythm or who were taking antiarrhythmic drugs before the operation. The final analysis included 10,563 patients. Univariate and multivariate analyses were performed to identify risk factors for intraoperative AF.
  
  
  RESULTS
  The overall incidence of intraoperative AF was 3.27% (346 of 10,563). Multivariable logistic analysis identified increasing age, male sex, lung cancer, general anesthesia plus paravertebral block, open operation, resection of one or more lobes, and increased operation time as risk factors of intraoperative AF. In 40.73% of patients, intraoperative AF occurred during lymph node dissection.
  
  
  CONCLUSIONS
  We identified seven risk factors for intraoperative AF in patients receiving lung operations. These findings may eventually help us to improve preoperative and intraoperative management to minimize intraoperative AF.
authors.affiliation: Department of Anesthesiology, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China.
authors.forename: De-hua
authors.initials: DH
authors.lastname: Wu
authors.forename: Mei-ying
authors.initials: MY
authors.lastname: Xu
authors.forename: Teng
authors.initials: T
authors.lastname: Mao
authors.forename: Hui
authors.initials: H
authors.lastname: Cao
authors.forename: Dong-jin
authors.initials: DJ
authors.lastname: Wu
authors.forename: Yao-feng
authors.initials: YF
authors.lastname: Shen
mesh_terms: D000328:Adult; D000368:Aged; D001281:Atrial Fibrillation / Q000209:etiology*; D005260:Female; D006801:Humans; D007431:Intraoperative Complications / Q000209:etiology*; D008168:Lung / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D016017:Odds Ratio; D012189:Retrospective Studies; D012307:Risk Factors