Table 3. Hematologic results according to the risk groups.
| Parameters | Total | Standard risk | High PE risk | High bleeding risk | P value |
|---|---|---|---|---|---|
| Unilateral or 1st staged bilateral | n = 198 | n = 167 | n= 21 | n= 10 | |
| Preoperative hemoglobin (g/dL) | 12.9 ± 1.4 | 12.8 ± 1.1 | 13.1 ± 1.1 | 12.9 ± 1.4 | 0.796 |
| Hemoglobin on POD2 (g/dL) | 10.0 ± 1.4 | 10.1 ± 1.4 | 9.8 ± 1.5 | 9.4 ± 1.5 | 0.306 |
| Hemoglobin drop on POD2 (g/dL) | 2.9 ± 1.1 | 2.9 ± 1.1 | 3.0 ± 1.2 | 3.7 ± 0.9 | 0.079 |
| Hemoglobin on POD5 (g/dL) | 9.4 ± 1.3 | 9.4 ± 1.3 | 9.0 ± 0.9 | 8.9 ± 1.7 | 0.197 |
| Hemoglobin drop on POD5 (g/dL) | 3.5 ± 1.2 | 3.5 ± 1.2 | 3.7 ± 1.0 | 4.2 ± 1.1 | 0.138 |
| Allogenic transfusion (%) | 7 (3.5) | 6 (3.6) | 1 (4.8) | 0 (0) | 0.702 |
| Autologous transfusion (PABD, %) | 1 (0.6) | 1 (0.6) | 0 (0) | 0 (0) | 1.000 |
| Simultaneous bilateral | n= 99 | n= 92 | n=6 | n=1 | |
| Preoperative hemoglobin (g/dL) | 13.1 ± 1.1 | 13.1 ± 1.1 | 12.2 ± 0.5 | 12.7 (NA) | 0.107 |
| Hemoglobin on POD2 (g/dL) | 8.1 ± 1.1 | 8.1 ± 1.1 | 7.9 ± 1.2 | 8.3 (NA) | 0.850 |
| Hemoglobin drop on POD2 (g/dL) | 5.0 ± 1.5 | 5.0 ± 1.2 | 4.3 ± 1.0 | 4.4 (NA) | 0.459 |
| Hemoglobin on POD5 (g/dL) | 8.1 ± 0.8 | 8.1 ± 0.8 | 7.9 ± 0.8 | 8.7 (NA) | 0.592 |
| Hemoglobin drop on POD5 (g/dL) | 5.0 ± 1.3 | 5.0 ± 1.3 | 4.3 ± 0.6 | 4.0 (NA) | 0.273 |
| Allogenic transfusion (%) | 14 (14.1) | 13 (14.1) | 1 (16.7) | 0 (0) | 1.000 |
| Autologous transfusion (PABD, %) | 22 (22.2) | 20 (21.7) | 2 (33.3) | 0 (0) | 0.700 |
Data are presented as means±standard deviations or number of event with their percentage in the parenthesis. POD, postoperative day; PABD, preoperative autologous blood donation; NA, not applicable.