Table 2. Perioperative Data.

	Low LVEF	Normal LVEF
	n = 206	n = 412
On-pump surgery	28 (13.6%)	42 (10.2%)	0.2
Complete coronary revascularization	176 (85.4%)	311 (75.9%)	0.11
Extracorporeal circulation time (min)	80 (62 103)	77 (61 97)	0,4
Ventilation time < 24 hours	146 (73,4%)	331 (83,2%)	<0,005
IABP *	34(16.6%)	24 (5.8%)	<0.0001
GP2b3a inhibitors	28 (13.6%)	53 (12.9%)	0.8
Vasopressors or inotropic drugs (>24 hours)	102 (49,8%)	110 (26,7%)	<0,001
Transfusion (red blood cell units ≥3)	148 (74%)	322 (78.9%)	0.2

* intraaortic balloon counterpulsation