Table 2.
The locoregional lymph node metastatic rates in the two groups
| Regional lymph nodes | JES | UICC/AJCC |
Dissection n = 170 No. (%) |
Non‐dissection n = 80 No. (%) |
P value |
|---|---|---|---|---|---|
| Thoracic lymph node | |||||
| Upper paraesophageal | 105 | 3P | 9 (5.3) | 6 (7.5) | 0.570* |
| Left recurrent nerve | 106recL | 2L | 22 (12.9) | 7 (8.8) | 0.334 |
| Right recurrent nerve | 106recR | 2R | 31 (18.2) | 12 (15) | 0.527 |
| Left tracheobronchial | 106tbl | 4L | 9 (5.3) | / | / |
| Left main bronchus | 109L | 10L | 4 (2.4) | 1 (1.3) | 1.000* |
| Subcarinal | 107 | 7 | 20 (11.8) | 6 (7.5) | 0.303 |
| Middle paraesophageal | 108 | 8M | 28 (16.5) | 12 (15) | 0.767 |
| Lower paraesophageal | 110 | 8L | 22 (12.9) | 9 (11.3) | 0.705 |
| Abdominal lymph node | |||||
| Pericardial | 1, 2 | 16 | 40 (23.5) | 18 (22.5) | 0.857 |
| Left gastric artery | 7 | 17 | 14 (8.2) | 5 (6.3) | 0.581 |
| Common hepatic artery | 8 | 18 | 4 (2.4) | 1 (1.3) | 1.000* |
| Splenic artery | 10 | 19 | 1 (0.6) | 0 (0) | 1.000* |
*Fisher's exact test. AJCC, American Joint Commission on Cancer; JES, Japan Esophageal Society; UICC, Union for International Cancer Control.