Table 2. Complications And Mortality After Coronary Artery Bypass Grafting.

	Group 1 (n = 1500)	Group 2 (n = 500)	p-value
Number of distal anastomoses (mean ± SD)	2.98 ± 1.9 (1–5)	3.12 ± 2.1 (1–4)	0.96
Time of cross clamp (min) (mean ± SD)	41 ± 4.3	69.6 ± 1.3	0.001
Time of perfusion (min) (mean ± SD)	67.3 ± 3.6	76.7 ± 2.2	0.001
Positive inotropic support (%)	31.2	29.4	0.43
IABP (%)	1.26	0.8	0.001
Time in operating room (min) (mean ± SD)	187.95 ± 2.32	185.25 ± 7.35	0.072
Using grafts
LITA, n (%) (for LAD coronary artery)	2275 (98.48)	483 (96.62%)	0.001
Blood transfusion (units)	3.1 ± 1.4	2.8 ± 2.7	0.001
Days in ICU (mean ± SD)	1.2 ± 2.1	1.8 ± 2.3	0.001
Total days in hospital (mean ± SD)	5.1 ± 2.8	4.9 ± 3.6	0.46
Post-operative bleeding (ml)	550 ± 2.6	490 ± 2.6	0.001
Intubation time (hour) (mean ± SD)	7.86 ± 9.2	12.67 ± 4.8	0.001
Re-operation for bleeding (%)	0.6	0.4	0.86
Peri-operative MI (%)	1.9	2.1	0.92
Stroke, n (%)	26, 1.73	9, 1.8	0.92
30-day mortality, n (%)	24, 1.6	7, 1.4	0.91

Mean ± SD, mean ± standard deviation; IABP, intra-aortic balloon counter pulsation; LITA, left internal thoracic artery; LAD, left anterior coronary artery; ICU, intensive care unit; CVE, cerebrovascular events; AF, atrial fibrillation.