title: A propensity score analysis on the effect of on-pump versus off-pump coronary artery bypass grafting for patients with coronary artery disease.
abstract: OBJECTIVE
  The aim of this retrospective observational study was to investigate the effect of on-pump versus off-pump coronary artery bypass grafting (CABG) for patients with coronary artery diseases (CAD).
  
  
  METHODS
  A retrospective observational study was performed using a propensity score analysis in 290 consecutive patients undergoing CABG between April 2009 and March 2014, of them, 54 patients undergoing off-pump CABG (OPCABG) were matched with 54 patients undergoing on-pump CABG (ONCABG) by propensity score. The perioperative complications and hospital mortality were documented.
  
  
  RESULTS
  Preoperative characteristics were comparable in both groups following propensity matching. Postoperative myocardial infarction (MI) incidence was lower in OPCABG group than in ONCABG group (3.7% vs. 14.8%, P=0.046); both hospital mortality and the major complications rates were similar in the two groups after propensity adjustment for preoperative characteristics.
  
  
  CONCLUSIONS
  The perioperative complications are similar in both off-pump and on pump CABG groups, the short-term effect of OPCABG is similar to that of ONCABG.
authors: Cardiovascular center, China-Japan Friendship Hospital, Beijing 100029, China.
authors: Peng
authors: P
authors: Liu
authors: Cardiovascular center, China-Japan Friendship Hospital, Beijing 100029, China.
authors: Fei
authors: F
authors: Wang
authors: Cardiovascular center, China-Japan Friendship Hospital, Beijing 100029, China.
authors: Shiyan
authors: S
authors: Ren
authors: Cardiovascular center, China-Japan Friendship Hospital, Beijing 100029, China.
authors: Fan
authors: F
authors: Lin
authors: Cardiovascular center, China-Japan Friendship Hospital, Beijing 100029, China.
authors: Yuguang
authors: Y
authors: Yang
authors: Cardiovascular center, China-Japan Friendship Hospital, Beijing 100029, China.
authors: Xueqiang
authors: X
authors: Fan
authors: Cardiovascular center, China-Japan Friendship Hospital, Beijing 100029, China.
authors: Guang
authors: G
authors: Sun
authors: Cardiovascular center, China-Japan Friendship Hospital, Beijing 100029, China.
authors: Xia
authors: X
authors: Zheng
authors: Cardiovascular center, China-Japan Friendship Hospital, Beijing 100029, China.
authors: Jiangtao
authors: J
authors: Liu
authors: Cardiovascular center, China-Japan Friendship Hospital, Beijing 100029, China.
authors: Jing
authors: J
authors: Yuan
authors: Cardiovascular center, China-Japan Friendship Hospital, Beijing 100029, China.
authors: Zhidong
authors: Z
authors: Ye
keywords: Coronary artery disease (CAD); cardiopulmonary bypass (CPB); coronary artery bypass grafting (CABG); propensity score analysis