Table 1 |
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Demographic information, preoperative profile and operative details in the blood-prime group |
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Variable |
Patients Receiving Newer Blood (N = 116) |
Patients Receiving Older Blood (N = 76) |
P value |
|
|
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|
Transfused blood |
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|
Duration of storage (days) |
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|
Median |
3 |
6 |
0.001 |
|
Interquartile range |
2 to 4 |
5 to 8 |
|
|
Number of red blood cell units |
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|
Median |
2 |
2 |
0.985 |
|
Interquartile range |
2 to 2 |
2 to 2 |
|
|
Demographic features |
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|
Age (months) |
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|
Median |
6.5 |
8 |
0.089 |
|
Interquartile range |
4 to 11 |
5 to 11 |
|
|
Male sex -- no. of patients (%) |
68 (58) |
37 (49) |
0.196 |
|
Weight (kgs) |
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|
Median |
6.15 |
6.7 |
0.244 |
|
Interquartile range |
4. 5 to 7.6 |
5 to 7.7 |
|
|
Clinical features |
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|
Hematocrit (%) |
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|
Median |
33 |
36 |
0.005 |
|
Interquartile range |
31 to 36 |
32 to 38 |
|
|
Platelet count (cells/μL) |
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|
Median |
321000 |
314000 |
0.903 |
|
Interquartile range |
249000 to 382000 |
245000 to 391000 |
|
|
Prothrombin activity (%) |
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|
Median |
84.5 |
84.7 |
0.903 |
|
Interquartile range |
76 to 91 |
76 to 94 |
|
|
aPTT (seconds) |
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|
Median |
31.2 |
31 |
0.724 |
|
Interquartile range |
28 to 34 |
29 to 34 |
|
|
Antithrombin activity (%) |
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|
Median |
105 |
104 |
0.190 |
|
Interquartile range |
91 to 115 |
89 to 113 |
|
|
Creatinine (mg/dL) |
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|
Median |
0.3 |
0.3 |
0.429 |
|
Interquartile range |
0.25 to 0.35 |
0.25 to 0.35 |
|
|
Bilirubin (mg/dL) |
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|
Median |
0.4 |
0.35 |
0.509 |
|
Interquartile range |
0.27 to 0.65 |
0.27 to 0.54 |
|
|
Aristotle score |
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|
Median |
7.5 |
6.3 |
0.803 |
|
Interquartile range |
6 to 8 |
6 to 8 |
|
|
Redo operations -- no. of patients (%) |
6 (5.2) |
4 (5.1) |
0.296 |
|
Operative details |
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|
Procedure -- no. of patients (%) |
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|
ASD repair |
2 (2) |
2 (3) |
|
|
VSD repair |
39 (34) |
27 (36) |
|
|
TOF correction |
18 (16) |
12 (16) |
|
|
Arterial switch |
10 (9) |
10 (13) |
|
|
AV canal |
16 (14) |
10 (13) |
|
|
Others |
31 (25) |
16 (19) |
|
|
Priming volume (mL) |
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|
Median |
400 |
400 |
0.292 |
|
Interquartile range |
380 to 400 |
380 to 400 |
|
|
Transfused RBC volume (mL) |
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|
Median |
240 |
240 |
0.792 |
|
Interquartile range |
216 to 300 |
240 to 300 |
|
|
CPB duration (minutes) |
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|
Median |
82 |
74 |
0.480 |
|
Interquartile range |
58 to 110 |
52 to 120 |
|
|
Lowest temperature (°C) |
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|
Median |
29.6 |
30 |
0.771 |
|
Interquartile range |
28.3 to 31 |
28 to 32 |
|
|
Lowest hematocrit (%) |
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|
Median |
28 |
28 |
0.151 |
|
Interquartile range |
26 to 29 |
26 to 30 |
|
|
|
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aPTT = activated partial thromboplastin time; ASD = atrial septal defect; AV = atrioventricular; CPB = cardiopulmonary bypass; TOF = tetralogy of Fallot; VSD = ventricular septal defect. Continuous variables are described as medians and interquartile ranges, and P values were calculated by the Wilcoxon rank-sum test; categorical variables are described as numbers and percentages, and P values were calculated by Pearson's chi-square test. |
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Ranucci et al. Critical Care 2009 13:R207 doi:10.1186/cc8217 |
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