Variable | Patients Receiving Newer Blood (N = 116) | Patients Receiving Older Blood (N = 76) | P value |
---|---|---|---|
Transfused blood | |||
Duration of storage (days) | |||
Median | 3 | 6 | 0.001 |
Interquartile range | 2 to 4 | 5 to 8 | |
Number of red blood cell units | |||
Median | 2 | 2 | 0.985 |
Interquartile range | 2 to 2 | 2 to 2 | |
Demographic features | |||
Age (months) | |||
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) | |||
Median | 6.15 | 6.7 | 0.244 |
Interquartile range | 4. 5 to 7.6 | 5 to 7.7 | |
Clinical features | |||
Hematocrit (%) | |||
Median | 33 | 36 | 0.005 |
Interquartile range | 31 to 36 | 32 to 38 | |
Platelet count (cells/μL) | |||
Median | 321000 | 314000 | 0.903 |
Interquartile range | 249000 to 382000 | 245000 to 391000 | |
Prothrombin activity (%) | |||
Median | 84.5 | 84.7 | 0.903 |
Interquartile range | 76 to 91 | 76 to 94 | |
aPTT (seconds) | |||
Median | 31.2 | 31 | 0.724 |
Interquartile range | 28 to 34 | 29 to 34 | |
Antithrombin activity (%) | |||
Median | 105 | 104 | 0.190 |
Interquartile range | 91 to 115 | 89 to 113 | |
Creatinine (mg/dL) | |||
Median | 0.3 | 0.3 | 0.429 |
Interquartile range | 0.25 to 0.35 | 0.25 to 0.35 | |
Bilirubin (mg/dL) | |||
Median | 0.4 | 0.35 | 0.509 |
Interquartile range | 0.27 to 0.65 | 0.27 to 0.54 | |
Aristotle score | |||
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 | |||
Procedure -- no. of patients (%) | |||
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) | |||
Median | 400 | 400 | 0.292 |
Interquartile range | 380 to 400 | 380 to 400 | |
Transfused RBC volume (mL) | |||
Median | 240 | 240 | 0.792 |
Interquartile range | 216 to 300 | 240 to 300 | |
CPB duration (minutes) | |||
Median | 82 | 74 | 0.480 |
Interquartile range | 58 to 110 | 52 to 120 | |
Lowest temperature (°C) | |||
Median | 29.6 | 30 | 0.771 |
Interquartile range | 28.3 to 31 | 28 to 32 | |
Lowest hematocrit (%) | |||
Median | 28 | 28 | 0.151 |
Interquartile range | 26 to 29 | 26 to 30 |