Table 2 Postoperative outcome variables compared between the conventional group and the ABN group
Clinical variables | Conventional group (n = 32) Mean ± SD or n (%) | ABN group (n = 31) Mean ± SD or n (%) | p-value |
|---|---|---|---|
Postoperative hematocrit level (%) | Â | Â | Â |
  24 h | 29.9 ± 2.8 | 29.6 ± 3.2 | 0.723 |
  48 h | 30.2 ± 2.4 | 30.1 ± 3.1 | 0.906 |
  120 h | 32.8 ± 2.1 | 33.1 ± 1.9 | 0.537 |
Drainage blood loss (mL) | Â | Â | Â |
    24 h | 536.8 ± 237.0 | 520.3 ± 228.6 | 0.778 |
    48 h | 397.3 ± 364.2 | 313.9 ± 204.4 | 0.260 |
   Total | 934.1 ± 535.5 | 834.2 ± 304.1 | 0.359 |
Calculated total red blood cell loss (mL) | 630.0 ± 277.8 | 669.7 ± 279.7 | 0.572 |
Patients that required blood transfusion | 32 (100%) | 30 (96.8%) | 0.492 |
Packed red cell transfusion volume (mL) | Â | Â | Â |
    24 h | 247.2 ± 163.7 | 265.2 ± 124.6 | 0.626 |
    48 h | 241.4 ± 167.0 | 211.4 ± 148.6 | 0.451 |
   After 48 h | 118.3 ± 147.9 | 176.9 ± 170.8 | 0.148 |
   Total | 606.9 ± 277.9 | 653.5 ± 286.8 | 0.512 |
Total morphine use (mL) | 8.5 ± 5.9 | 10.0 ± 6.0 | 0.292 |
Length of hospital stay (days) | 5.9 ± 1.7 | 6.1 ± 2.0 | 0.644 |