Table 3 Hematocrit values, intravenous fluids and fluid balance by group

Preoperative

39.54 ± 3.90

40.38 ± 4.53

0.246

After arterial line placement

38.45 ± 4.32

38.68 ± 4.40

0.765

After anesthesia induction

38.19 ± 4.61

37.84 ± 4.53

0.655

After first cardioplegia

20.20 ± 3.60

20.16 ± 3.83

0.947

End of CPB

23.07 ± 3.45

23.26 ± 3.03

0.721

End of operation

27.55 ± 4.18

27.50 ± 4.15

0.943

6 hours in the ICU

28.15 ± 3.38

28.79 ± 3.32

0.263

12 hours in the ICU

28.61 ± 3.77

29.29 ± 3.58

0.254

Day of discharge

30.67 ± 3.07

31.28 ± 2.58

0.193

Fluid balance (ml)

IV fluids to initiation of CPB

368.5 ± 177.0

416.4 ± 184.6

0.101

Urine to initiation of CPB

110.8 ± 95.9

135.7 ± 127.6

0.164

Fluid balance

After 1st cardioplegia

2240.2 ± 238.8

2326.0 ± 306.4

0.055

Urine output during CPB

666.2 ± 594.0

694.0 ± 423.0

0.743

Total urine output

1326.2 ± 842.2

1419.3 ± 690.7

0.452

Use of filter, n (%)

8 (10.6%)

9 (12.0%)

0.796

Overall fluid balance

685.4 ± 784.1

809.9 ± 651.1

0.290