Table 2. Perioperative Factors and Site of Recurrence.
| Propofol (N = 173) |
Sevoflurane (N = 152) |
P value | |
|---|---|---|---|
| Time of surgery (min) | 102.0 (30.3) | 102.1 (28.4) | 0.988 |
| Intraoperative opioid | 0.001 | ||
| None | 1 (0.6) | 85 (55.9) | |
| Remifentanil | 116 (67.1) | 0 (0) | |
| Fentanyl | 55 (31.8) | 56 (36.8) | |
| Alfentanil | 1 (8.3) | 11 (7.2) | |
| Postoperative opioid | 0.001 | ||
| None | 63 (36.4) | 96 (63.2) | |
| Fentanyl | 19 (11.0) | 22 (14.5) | |
| Meperidine | 91 (52.6) | 34 (22.4) | |
| Postoperative NSAID | 0.203 | ||
| None | 81 (46.8) | 67 (44.1) | |
| Ketolorac | 14 (8.1) | 6 (3.9) | |
| Diclofenac | 78 (45.1) | 79 (52.0) | |
| Perioperative transfusion | 5 (2.9) | 3 (2.0) | 0.728 |
| Site of recurrence | 0.137 | ||
| None | 154 (89.0) | 124 (81.6) | |
| Bone | 1 (0.6) | 9 (5.9) | |
| Brain | 1 (0.6) | 1 (0.7) | |
| Lung | 9 (5.2) | 10 (6.6) | |
| Chest wall | 4 (2.3) | 4 (2.6) | |
| Liver | 4 (2.3) | 4 (2.6) |
Values are mean (SD) or number of patients (%). NSAID: non-steroidal antiinflammatory drug.