Original Article


A propensity score analysis on the effect of on-pump versus off-pump coronary artery bypass grafting for patients with coronary artery disease

Peng Liu, Fei Wang, Shiyan Ren, Fan Lin, Yuguang Yang, Xueqiang Fan, Guang Sun, Xia Zheng, Jiangtao Liu, Jing Yuan, Zhidong Ye

Abstract

Aim: The aim of this retrospective observational study was to investigate the effect of on-pump versus offpump 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.

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