Table 3 Univariate analysis of factors influencing 5-year survival after resection of oligometastatic EGAC
n | 5-year-survival (%) | Median survival in years | p = | |
|---|---|---|---|---|
Total | 48 | 18 | 1.3 | |
Sex | ||||
Female | 15 | 26 | 2.8 | 0.195 |
Male | 33 | 16 | 1 | |
Age | ||||
< 65 | 35 | 10 | 1.2 | 0.596 |
≥ 65 | 13 | 26 | 1.4 | |
ASA classification | ||||
ASA 1–2 | 29 | 20 | 1.3 | 0.405 |
ASA 3–4 | 19 | 16 | 1 | |
Type of carcinoma | ||||
Esophageal carcinoma | 17 | 10% | 1 | 0.213 |
Gastric carcinoma | 31 | 24% | 1.3 | |
Preoperative T stage | ||||
T2 | 1 | 0 | 0.5 | 0.338 |
T3 | 29 | 14% | 1.2 | |
T4 | 5 | 0 | 3.9 | |
Type of surgery | ||||
Esophagectomy | 16 | 0 | 1 | 0.099 |
Gastrectomy | 32 | 30 | 1.3 | |
Resection margin | ||||
R0 | 33 | 21 | 1.4 | 0.273 |
R1 (primary tumor) | 4 | 0 | 0.4 | |
R2 (non-resected metastases) | 11 | 17 | 1.3 | |
Tumor regression grading | ||||
1a | 6 | 60 | Not reached | 0.012 |
1b-2 | 22 | 11 | 1.8 | |
03-Apr | 20 | 12 | 0.9 | |
Postop. pathologic T stage | ||||
T0 | 6 | 60 | Not reached | 0.047 |
T1–T2 | 15 | 27 | 1.3 | |
T3–T4 | 27 | 0 | 1 | |
Postop. pathologic N stage | ||||
N0 | 17 | 31 | 2.9 | 0.062 |
N+ | 31 | 11 | 1.2 | |
Type of metastasis | ||||
Peritoneal carcinomatosis | 30 | 11 | 1 | 0.945 |
Lymph nodes | 7 | 43 | 1.3 | |
Hepatic | 7 | 40 | 2.9 | |
Adrenal | 3 | 0 | 0.9 | |
Pulmonary | 1 | 0 | 1.7 | |
ypM0 | 12 | 48 | 3.9 | 0.427 |
ypM1 and complete resection of metastasis | 25 | 9 | 1 | |
ypM1 and no complete resection of metastasis | 11 | 17 | 1.3 | |
Status of metastasis | ||||
No | 12 | 48 | 3.9 | 0.012 |
Yes | 36 | 11 | 1 | |
Adjuvant chemotherapy | ||||
Yes | 31 | 21 | 1.7 | 0.182 |
No | 9 | 30 | 0.5 | |