Table 2 |
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Central venous O2 saturation (ScvO2), hemoglobin (Hb), heart rate (HR) and systolic arterial pressure (SAP) values (median [CI 95%]) in 53 hemodynamically stable postoperative patients who received blood transfusion (BT), divided into two groups according to their ScvO2 before blood transfusion (< or ≥ 70%); and then into four groups according to agreement or not with the SRLF recommendations for transfusion. |
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ScvO2 < 70% |
ScvO2 ≥ 70% |
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SRLF recommendations |
Yes (n = 15) |
No (n = 13) |
Yes (n = 18) |
No (n = 7) |
Kruskal-Wallis test (p < .05) |
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|
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ScvO2 preBT |
57.4 [48.2-62.0] |
58.0 [55.3-65.0] |
76.9 [72.0-80.8] |
75.7 [75.0-86.4] |
p < 0.001 |
|
ScvO2 postBT |
68.7* [63.0-75.6] |
67.8* [60.7-72.0] |
78.7 [70.0-84.2] |
74,0* [65.0-76.7] |
p < 0.01 |
|
Hb preBT |
7.4 [7.1-7.9] |
7.8 [7.4-8.7] |
7.5 [7.3-8.1] |
8.1 [7.5-8.2] |
Ns |
|
Hb postBT |
9.4** [8.7-9.7] |
10.0** [9.4-10.6] |
10.1** [9.3-10.6] |
9.8* [9.4-10.7] |
Ns |
|
HR preBT |
88 [78-90] |
96 [93-120] |
92 [85-105] |
95 [81-112] |
Ns |
|
HR postBT |
92 [84-97] |
95 [89-100] |
89 [78-104] |
96 [78-100] |
Ns |
|
SAP preBT |
118 [101-141] |
130 [120-150] |
128 [114-150] |
130 [124-151] |
Ns |
|
SAP postBT |
133 [119-140] |
120 [106-140] |
141* [128-161] |
140* [133-175] |
p = 0.047 |
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Ns: non-significant; * p < 0.05; **p < 0.01; Wilcoxon test for values before (preBT) vs after transfusion (postBT). Adapted from [7] |
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Vallet et al. Critical Care 2010 14:213 doi:10.1186/cc8854 |
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