| All patients No. (%) | No edema No. (%) | Edema < 51.95 cm3 No. (%) | Edema ≥ 51.95 cm3 No. (%) | p value |
---|---|---|---|---|---|
Total postoperative complications | 255 (36.6) | 102 (28.2) | 86 (41.5) | 67 (52.8) | < 0.001 |
Surgical complications | Â | Â | Â | Â | Â |
 Bleeding | 87 (12.5) | 22 (6.1) | 37 (17.9) | 28 (22) | < 0.001 |
 NK | 3 (0.4) | 3 (0.8) | – | – |  |
 CSF fistula | 55 (7.9) | 28 (7.7) | 11 (5.3) | 16 (12.6) | 0.067 |
 NK | 4 (0.6) | 4 (1.1) | – | – |  |
 Meningitis | 4 (0.6) | 2 (0.6) | 1 (0.5) | 1 (0.8) | NK* |
 NK | 4 (0.6) | 4 (1.1) | – | – |  |
 Palsy | 22 (3.2) | 6 (1.7) | 8 (3.9) | 8 (6.3) | NK* |
 NK | 4 (0.6) | 4 (1.1) | – | – |  |
 Cranial nerve disorder | 68 (9.8) | 46 (12.7) | 14 (6.8) | 8 (6.3) | 0.024 |
 NK | 4 (0.6) | 4 (1.1) | – | – |  |
 Aphasia | 18 (2.6) | 4 (1.1) | 7 (3.4) | 7 (5.5) | NK* |
 NK | 1 (0.1) | 1 (0.3) | – | – |  |
 Seizure | 28 (4) | 10 (2.8) | 13 (6.3) | 5 (3.9) | NK* |
 NK | 4 (0.6) | 4 (1.1) | – | – |  |
 Delirium | 13 (1.9) | 2 (0.6) | 6 (2.9) | 5 (3.9) | NK* |
 NK | 4 (0.6) | 4 (1.1) | – | – |  |
 Ischemic infarction | 14 (2) | 2 (0.6) | 7 (3.4) | 5 (3.9) | NK* |
 NK | 4 (0.6) | 4 (1.1) | – | – |  |
Systemic complications | Â | Â | Â | Â | Â |
 Heart attack | 1 (0.1) | 1 (0.3) | – | – | NK* |
 NK | 1 (0.1) | 1 (0.3) | – | – |  |
 Heart failure | 5 (0.7) | 2 (0.6) | 2 (1) | 1 (0.8) | NK* |
 NK | 4 (0.6) | 4 (1.1) | – | – |  |
 Vein thrombosis | 8 (1.1) | 4 (1.1) | 3 (1.4) | 1 (0.8) | NK* |
 NK | 1 (0.1) | 1 (0.3) | – | – |  |
 Pulmonary embolism | 4 (0.6) | 1 (0.3) | 1 (0.5) | 2 (1.6) | NK* |
 NK | 1 (0.1) | 1 (0.3) | – | – |  |
 Pneumonia | 9 (1.3) | 1 (0.3) | 5 (2.4) | 3 (2.4) | NK* |
 NK | 1 (0.1) | 1 (0.3) | – | – |  |
 Respiratory insufficiency | 6 (0.9) | 2 (0.6) | 3 (1.4) | 1 (0.8) | NK* |
 NK | 1 (0.1) | 1 (0.3) | – | – |  |
 Renal insufficiency | 2 (0.3) | – | 1 (0.5) | 1 (0.8) | NK* |
 NK | 1 (0.1) | 1 (0.3) | – | – |  |
 Endocrine disorder | 4 (0.6) | 1 (0.3) | 1 (0.5) | 2 (1.6) | NK* |
 NK | 4 (0.6) | 4 (1.1) | – | – |  |
 Pneumothorax | 10 (11.4) | 3 (0.8) | 5 (2.4) | 2 (1.6) | NK* |
 NK | 1 (0.1) | 1 (0.3) | – | – |  |
Hospital length of stay (days, median (IQR)) | 12.0 (8.0–15.0) | 11.0 (8.0–15.0) | 13.0 (9.0–16.0) | 14.0 (10.0–17.0) | < 0.001 |
 Mean | 12.7 | 11.9 | 13.2 | 14.1 |  |
 NK (no. of cases) | 8 (1.1) | 6 (1.7) | 1 (0.5) | 1 (0.8) |  |
Dismissal |  |  |  |  | < 0.001 |
 Dismissal home | 538 (77.3) | 303 (83.7) | 147 (71) | 88 (69.3) |  |
 Dismissal to rehabilitation clinic or other hospital | 125 (18) | 42 (11.6) | 50 (24.2) | 33 (26) |  |
 NK (no. of cases) | 33 (4.7) | 17 (4.7) | 10 (4.8) | 6 (4.7) |  |
Follow-up (months, median (IQR)) | 23.7 (5.0–61.6) | 25.5 (5.3–66.5) | 21.3 (2.9–47.2) | 20.9 (5.1–59.2) | 0.151 |
 Mean | 40.3 | 42.8 | 34.9 | 41.6 |  |
Follow-up (months/maximum) | 202.6 | 202.6 | 192 | 184.7 | Â |
 NK (no. of cases) | 47 (6.8) | 17 (4.7) | 15 (7.2) | 15 (11.8) |  |