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Table 4 Hematological, coagulation and thromboelastography parameters pre and post infusion of autologous residual blood

From: The effects on coagulation of the reinfusion of unprocessed residual blood from the cardiopulmonary bypass

  Pre infusion Post infusion p value
Laboratory coagulation parameters
Hemoglobin (g/l)
(NR: 115–165)
89 (14) 93 (11) 0.003*
Platelets (×109/l)
(NR: 150–400)
96 (34) 118 (39) 0.0007*
Laboratory coagulation parameters
Prothrombin time (s)
(NR: 11–15 s)
18 17 (3.30) 0.15
INR
(NR: <1.4)
1.6 1.5 (0.29) 0.24
aPTT (s)
(NR: 22–38)
42 (20) 35 (6.4) <0.0001*
Thrombin time (s)
(NR: 13–21)
25 (10) 21 (5.5) 0.01*
Fibrinogen (g/l)
(NR: 2–4)
1.9 (0.51) 2 (0.56) 0.05*
D-Dimer (mg/l)
(NR: <0.23)
1.5 (1.60) 1.6 (1.60) 0.52
TEG parameters (heparinase)
R-time (min)
(NR: 4–8)
21 (6) 12 (9) 0.0023*
K-time (min)
(NR: 0–4)
3.9 (3.30) 1.5 (2.50) 0.0017*
Alpha angle (degrees)
(NR: 47–74)
59 (14) 65 (10) 0.012*
Maximum amplitude (mm)
(NR: 54–72)
60 (8.30) 62 (7) 0.002*
TEG parameters (native)
R-time (mins)
(NR: 4–8)
26 (24) 13 (10) 0.0041*
K-time (mins)
(NR: 0–4)
5 (5.50) 2.5 (2) 0.012*
Alpha Angle (degrees)
(NR: 47–74)
58 (15) 67 (9.40) 0.0051*
Maximum amplitude (mm)
(NR: 54–72)
61 (11) 65 (7) 0.0078*
  1. Values are mean and standard deviation
  2. NR normal range
  3. *p < 0.05 are statistically significant