Group | Intravenous iron | Autologous whole blood | p |
---|---|---|---|
n | 32 | 32 | |
Four weeks before surgery (baseline) | |||
 Hemoglobin (g/dL) | 14.5 ± 1.4 | 14.3 ± 1.4 | 0.529 |
 Hematocrit (%) | 42.8 ± 3.8 | 42.5 ± 3.6 | 0.79 |
 RBC count (× 1012/L) | 4.8 ± 0.4 | 4.7 ± 0.4 | 0.491 |
Red cell index | |||
 MCV (fL) | 89.2 ± 3.5 | 89.3 ± 2.3 | 0.831 |
 MCH (pg) | 30.1 ± 1.3 | 30.1 ± 1.0 | 0.991 |
 MCHC (%) | 33.9 ± 0.9 | 33.5 ± 0.7 | 0.09 |
 Iron (μg/dL) | 128.9 ± 48.6 | 113.3 ± 42.4 | 0.176 |
 Ferritin (ng/mL) | 105.7 ± 92.9 | 107.5 ± 77.7 | 0.932 |
Immediately before surgery | |||
 Hemoglobin (g/dL) | 13.5 ± 1.4*** | 12.0 ± 2.0*** |  < 0.001 |
 Hematocrit (%) | 40.2 ± 2.7*** | 35.5 ± 5.5*** |  < 0.001 |
 RBC count (× 1012/L) | 4.5 ± 0.4*** | 4.0 ± 0.6*** |  < 0.001 |
Red cell index | |||
 MCV (fL) | 89.5 ± 3.4 | 89.1 ± 3.7 | 0.617 |
 MCH (pg) | 30.1 ± 1.3 | 30.0 ± 1.4 | 0.631 |
 MCHC (%) | 33.8 ± 0.8 | 33.6 ± 0.7 | 0.401 |
 Iron (μg/dL) | 98.6 ± 33.0*** | 62.2 ± 40.9*** |  < 0.001 |
 Ferritin (ng/mL) | 271.2 ± 156.4** | 66.3 ± 111.6 |  < 0.001 |
Postoperative day 1 | |||
 Hemoglobin (g/dL) | 10.1 ± 1.9*** | 10.1 ± 1.8*** | 0.849 |
 Hematocrit (%) | 30.1 ± 5.5*** | 29.7 ± 4.9*** | 0.765 |
 RBC count (× 1012/L) | 3.4 ± 0.6*** | 3.4 ± 0.6*** | 0.697 |
Red cell index | |||
 MCV (fL) | 89.0 ± 1.7 | 89.4 ± 3.3 | 0.542 |
 MCH (pg) | 30.0 ± 0.7 | 30.0 ± 1.2 | 0.829 |
 MCHC (%) | 33.7 ± 0.7 | 33.7 ± 0.8 | 0.961 |
 Iron (μg/dL) | 40.6 ± 29.8*** | 22.7 ± 12.1*** | 0.002 |
 Ferritin (ng/mL) | 265.2 ± 161.1*** | 102.3 ± 96.2 |  < 0.001 |
Postoperative day 2 | |||
 Hemoglobin (g/dL) | 9.1 ± 1.6*** | 9.9 ± 1.4*** | 0.035 |
 Hematocrit (%) | 26.9 ± 4.9*** | 29.4 ± 4.3*** | 0.036 |
 RBC count (× 1012/L) | 3.0 ± 0.6*** | 3.3 ± 0.5*** | 0.022 |
Red cell index | |||
 MCV (fL) | 89.8 ± 2.5 | 89.9 ± 3.5 | 0.823 |
 MCH (pg) | 30.4 ± 1.0 | 29.9 ± 1.3 | 0.081 |
 MCHC (%) | 33.9 ± 0.5 | 33.7 ± 0.7 | 0.433 |
 Iron (μg/dL) | 63.0 ± 26.4*** | 41.4 ± 22.9*** | 0.001 |
 Ferritin (ng/mL) | 281.8 ± 150.3*** | 107.3 ± 93.5 |  < 0.001 |