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Table 2 Effects of red blood cell transfusion on hematocrit, hemoglobin, arterial oxygen content, oxygen delivery, arterial blood gas analysis, and central venous oxygen saturation

From: Effects of red blood cell transfusion on hemodynamic parameters: a prospective study in intensive care unit patients

Parameter

Before RBC transfusion

After RBC transfusion

p-value compared with baseline

2 h after RBC transfusion

p-value compared with baseline

Hematocrit, %

22 ± 2

28 ± 3

<0.001

27 ± 2

<0.001

Hemoglobin, g/dL

7.6 ± 0.8

9.4 ± 0.9

<0.001

9.2 ± 0.8

<0.001

CaO2, mL/dL

9.9 ± 1.0

12.2 ± 1.2

<0.001

12.0 ± 1.1

<0.001

DO2, mL/min

934 ± 288

1073 ± 369

<0.001

1042 ± 334

0.002

PaO2, mmHg

84.0 ± 13.1

82.7 ± 16.8

0.700

89.1 ± 18.4

0.227

PaCO2, mmHg

48.3 ± 11.7

48.6 ± 13.1

0.785

48.4 ± 14.3

0.972

SaO2, %

95.4 (93.1-96.8)

95.5 (92.4-96.7)

0.650

95.5 (94.2-97.1)

0.543

ScvO2, %

71.6 ± 6.2

71.1 ± 7.1

0.581

73.9 ± 7.3

0.113

  1. RBC red blood cell, DO 2 oxygen delivery, CaO 2 arterial oxygen content, PaO 2 arterial partial pressure of oxygen, PaCO 2 arterial partial pressure of carbon dioxide, SaO 2 arterial oxygen saturation, ScvO2 central venous oxygen saturation. Data are presented as mean ± standard deviation (normally distributed data) or median and 25%-75% percentile range (not normally distributed data).