Table 3. Comparison Of Two Groups By Postoperative Variables.

	NV group (n = 29) mean ± SD	V group (n = 30) mean ± SD	p-value*
ICU intubation time (h)	9.67 ± 3.29	9.27 ± 2.86	0.61
Length of stay
ICU (h)	47.90 ± 14.16	45.83 ± 2.15	0.43
Postoperative (days)	5.45 ± 0.87	6.07 ± 1.66	0.08
Drainage tubes removed (h)	36.03 ± 9.22	36.93 ± 20.64	0.94
Total amount of drainage (ml)	709.66 ± 541.21	720.00 ± 540.37	0.83
Number of FFP used	1.07 ± 2.18	1.10 ± 1.34	0.94
Number of packed RBC used	1.79 ± 1.67	1.60 ± 1.67	0.66
Number of PC used	0.45 ± 1.32	0.37 ± 1.21	0.80
	n (%)	n (%)	p-value**
Postoperative exploration for haemorrhage	0	1 (3.3)	1.00
Postoperative AF	6 (20.7)	3 (10.0)	0.29
Renal dysfunctiona	5 (17.2)	4 (13.3)	0.73
Postoperative stroke	0	0	-

SD: standard deviation, NV: non-ventilated, V: ventilated, ICU: intensive care unit, FFP: fresh frozen plasma, RBC: red blood cells, PC: platelet concentrate, AF: atrial fibrillation.

*Independent samples t-test, ** Fisher’s exact test.

_aDefined when peak creatinine value was ≥ 1.5 times the pre-operative value.