CABG	coronary artery bypass grafting
OPCAB	off-pump CABG
ONCAB	on-pump CABG
LVD	left ventricular dysfunction
LVEF	left ventricular ejection fraction
LVEDD	left ventricular end-diastolic diameter
LCOS	low cardiac output syndrome
MACE	major adverse cardiovascular events
CAD	coronary heart disease
PCI	percutaneous coronary intervention
CPB	cardiopulmonary bypass
LIMA	left internal mammary artery
BMI	body mass index
COPD	chronic obstructive pulmonary disease
IABP	intra-aortic balloon pump
ICU	intensive care unit