Table 2.
Local treatment received in the combined treatment arm
| Radiofrequency/surgery | Method |
Total (n = 57) | |
|---|---|---|---|
| RFA only (n = 30) | RFA plus resection* (n = 27) | ||
| No. (%) | No. (%) | No. (%) | |
| Means of radiofrequency administration | |||
| At laparotomy | 25 (83.3) | 26 (96.3) | 51 (89.5) |
| Laparascopically | 1 (3.3) | 0 (0.0) | 1 (1.8) |
| Percutaneously | 4 (13.3) | 0 (0.0) | 4 (7.0) |
| No RFA performed | 0 (0.0) | 1 (3.7)* | 1 (1.8) |
| Worst margin for resected† tumors per patient (n = 27), cm | |||
| ≥1 | NA | 10 (37.0) | – |
| <1 | NA | 16 (59.3) | – |
| Residual tumor | NA | 1 (3.7) | – |
| Worst margin for tumors treated by radiofrequency per patient (n = 56), cm | (n = 26) | (n = 56) | |
| ≥1 | 8 (26.7) | 5 (19.2) | 13 (23.2) |
| <1 | 16 (53.3) | 17 (65.4) | 33 (58.9) |
| No margin | 4 (13.3) | 1 (3.8) | 5 (8.9) |
| Unknown | 2 (6.7) | 3 (11.5) | 5 (8.9) |
| Treatment of at least one liver metastasis unsuccessful | |||
| No | 29 (96.7) | 26 (96.3) | 55 (96.5) |
| Yes | 1 (3.3)‡ | 1 (3.7) | 2 (3.5) |
*
One patient was ineligible; all lesions were resected at baseline, no RFA done. RFA = radiofrequency ablation.
†
Resection consisted of one segment or wedge resection(s) (n = 16) or resection of two or more liver segments (n = 11).
‡
For this patient, one lesion could not be successfully treated by RFA because of its close proximity to the stomach.