Table 2:

Systemic parameters before, during and after the use of the extracorporeal circulation circuit

	cECC group	mECC group	P-value
Haematocrit (%)
Before	36.3 ± 2.4	34.2 ± 6.0	0.33
During	24.7 ± 2.0	27.7 ± 3.3	0.03
After	27.2 ± 1.8	27.5 ± 3.7	0.84
Haemoglobin (mmol/l)
Before	8.28 ± 0.81	7.78 ± 0.84	0.19
During	5.41 ± 0.64	6.42 ± 0.75	<0.01
After	5.90 ± 0.49	6.43 ± 0.77	0.08
Whole blood viscosity (mPa s)
Before	14.7 ± 7.0	13.5 ± 6.3	0.69
During	2.7 ± 2.0	5.4 ± 4.6	0.12
After	3.0 ± 1.4	4.1 ± 3.8	0.43
Lactate (mmol/l)
Before	1.35 ± 0.52	1.18 ± 0.32	0.37
During	1.77 ± 0.54	1.55 ± 0.32	0.25
After	1.64 ± 0.48	1.40 ± 0.37	0.21
MAP (mmHg)
Before	71 ± 5	74 ± 9	0.40
During	63 ± 8	65 ± 6	0.63
After	66 ± 3	71 ± 7	0.04
PAP (mmHg)
Before	20.0 ± 3.2	18.1 ± 4.0	0.23
During	8.1 ± 1.8	9.0 ± 2.6	0.39
After	19.2 ± 4.0	18.8 ± 2.0	0.78
Heart rate (bpm)
Before	60 ± 8	60 ± 8	0.84
During	—	—	—
After	76 ± 10	85 ± 16	0.17

cECC: conventional extracorporeal circulation circuit; mECC: minimized extracorporeal circulation circuit; MAP: mean arterial pressure; PAP: pulmonary arterial pressure.