Table 3.
Postoperative complications
| Restrictive group (n = 30) | Liberal group (n = 33) | P value | |
|---|---|---|---|
| Gastrointestinal complications | 12 | 13 | |
| Pneumonia | 0 | 4 | |
| Other pulmonary | 2 | 3 | |
| Skin reaction | 3 | 0 | |
| Fever | 5 | 3 | |
| Dizziness/discomfort | 4 | 8 | |
| Hypotension | 1 | 4 | |
| Fatigue | 1 | 1 | |
| Hyperkalemia | 1 | 1 | |
| Deep vein thrombosis | 0 | 1 | |
| Surgical site infection | 0 | 1 | |
| Fall at the ward or at home | 3 | 2 | |
| Others | 3 | 16 | |
| Total number of patients experiencing postoperative complications | 19 | 22 | 0.61 |
| Patients experiencing one postoperative complication | 9 | 6 | |
| Patients experiencing two postoperative complications | 5 | 6 | |
| Patients experiencing three postoperative complications | 4 | 4 | |
| Patients experiencing four postoperative complications | 1 | 3 | |
| Patients experiencing five postoperative complications | 0 | 3 | |
| Total number of postoperative complications | 34 | 57 | 0.01 |
Postoperative complications 30 days after surgery in patients undergoing hip revision surgery and randomized to receive transfusion of red blood cells at a haemoglobin concentration of 7.3 or 8.9 g/dL, restrictive group and liberal group, respectively.