Table 2 Hemorheological and Aggregate Properties.

From: Significantly increased low shear rate viscosity, blood elastic modulus, and RBC aggregation in adults following cardiac surgery

 

Control (n = 34)

M0 (n = 29)

M1 (n = 29)

M2 (n = 25)

M3 (n = 11)

Native-HCT Viscosity, mPa • s 0.38 s−1

42.08

(37.79–49.13)

62.40

(38.15–74.13)

50.80

(38.00–60.55)

62.00

(52.80–69.00)

45.42

(38.31–52.79)

4.28 s−1

11.07

(9.02–12.39)

12.25

(10.38–14.15)

10.20

(8.00–12.20)

10.46

(8.99–15.60)

9.39

(8.84–13.03)

298 s−1

4.06

(3.63–4.43)

4.04

(3.65–4.26)

3.66

(3.07–4.15)

3.64

(3.32–4.37)

3.76

(3.58–4.15)

HCT-adjusted Viscosity

0.38 s−1

41.53

(33.35–49.30)

61.75

(44.51–84.05)

191.92

(105.26–363.28)

217.98

(125.13–394.74)

54.13

(38.80–76.49)

4.28 s−1

9.47

(7.31–11.26)

10.99

(9.33–12.96)

14.04

(11.13–21.04)

17.37

(11.74–28.69)

10.78

(8.04–11.28)

298 s−1

3.27

(2.82–3.66)

3.05

(2.58–3.75)

3.69

(3.01–4.19)

3.39

(2.94–4.16)

3.03

(2.77–3.59)

Plasma Viscosity, mPa • s

532 s−1

1.35 ± 0.17

1.56 ± 0.23

1.57 ± 0.31

1.74 ± 0.23*

1.39 ± 0.22

Rheological Response γ = 10%

(shear rate = 0.1 s−1)

G’ < G”, liquid-like

G‘ > G”, gel-like

G’ > G”, gel-like

G‘ > G”, gel-like

G’ < G”, liquid-like

Crossover point ( Critical Strain γ*), %

X

14.88

(6.15–22.3)

18.20*

(12.35–31.60)

46.4

(23.35–86.55)

5.66

(4.50–12.73)

Microscopy AAS

12.39 ± 2.51

15.86 ± 3.25

19.75 ± 5.77

27.25 ± 7.60

17.24 ± 4.72

ASP

0.37 ± 0.11

0.47 ± 0.14

0.53 ± 0.09*

0.55 ± 0.09*

0.52 ± 0.12

  1. Mean or median values for hemorheological and aggregation Parameters. “*” and “”indicate P < 0.05 and < 0.01 respectively, compared with the pre-surgical value (M0) by the two-tailed t-test or the Wilcoxon’s test. “”indicates P < 0.01 compared with the Control by two-tailed t-test or U Mann-Whitney test.