Table 1 Clinicopathological characteristic of patients
All cases (1521, %) | LN metastasis along the left gastric artery (256, %) | |
|---|---|---|
Age (years) | ||
≤ 60 | 938 (61.7) | 163 (63.7) |
> 60 | 583 (38.3) | 93 (36.3) |
Gender | ||
Male | 1174 (77.2) | 227 (88.7) |
Female | 347 (22.8) | 29 (11.3) |
Smoking history | ||
Yes | 998 (65.6) | 186 (72.7) |
No | 523 (34.4) | 70 (27.3) |
Drinking history | ||
Yes | 531 (34.9) | 113 (44.1) |
No | 990 (65.1) | 143 (55.9) |
Differentiation | ||
Well | 388 (25.5) | 54 (21.1) |
Moderate | 711 (46.7) | 106 (41.4) |
Poor/un- | 422 (27.7) | 96 (37.5) |
Vascular invasion | ||
Yes | 33 (2.2) | 14 (5.5) |
No | 1488 (97.8) | 242 (94.5) |
Tumor location | ||
Upper thoracic esophagus | 255 (16.8) | 11 (4.3) |
Middle thoracic esophagus | 775 (50.9) | 117 (45.7) |
Lower thoracic esophagus | 491 (32.3) | 128 (50.0) |
Tumor length | ||
< 3 | 396 (26.0) | 44 (17.2) |
3–5 | 890 (58.5) | 161 (62.9) |
> 5 | 235 (15.5) | 51 (19.9) |
T stage | ||
Tis | 30 (2.0) | 0 |
T1 | 147 (9.7) | 16 (6.3) |
T2 | 349 (22.9) | 36 (14.1) |
T3 | 961 (63.2) | 189 (73.8) |
T4 | 34 (2.2) | 15 (5.9) |
N staging | ||
N0 | 923 (60.7) | 0 |
N1 | 340 (22.4) | 108 (42.2) |
N2 | 199 (13.1) | 106 (41.4) |
N3 | 59 (3.9) | 42 (16.4) |
AJCC 8th stage | ||
Stage 0 | 30 (2.0) | 0 |
Stage I | 193 (12.7) | 0 |
Stage II | 715 (47.0) | 14 (5.5) |
Stage III | 507 (33.3) | 192 (75.0) |
Stage IV | 76 (5.0) | 50 (19.5) |
Neoadjuvant therapy | ||
Yes | 73 (4.8) | 12 (4.7) |
No | 1448 (95.2) | 244 (95.3) |
Postoperative adjuvant therapy | ||
Yes | 243 (16.0) | 82 (32.0) |
No | 1278 (84.0) | 174 (68.0) |
Subcarinal LN metastasis | ||
Yes | 112 (7.4) | 49 (19.1) |
No | 1409 (92.6) | 207 (80.9) |
Recurrent laryngeal nerve LN metastasis | ||
Yes | 117 (7.7) | 24 (9.4) |
No | 1404 (92.3) | 232 (90.6) |
Left gastric artery LN metastasis | ||
Yes | 256 (16.8) | |
No | 1265 (83.2) | |
Number of resected TLNs | ||
Mean ± SD | 20.98 ± 13.54 | 22.19 ± 11.62 |
Median (minimum, maximum) | 18.00 (1, 109) | 19.00 (5, 87) |