Table 5.
Risk-Scoring System (eCura System) Used in Japan for Predicting LNM in Patients with Noncurative Resection after ESD for EGCs64
| Total points* | Rate of LNM, % | Risk category | Rate of LNM in risk categories, % |
|---|---|---|---|
| 0 | 1.6 | Low-risk | 2.5 |
| 1 | 2.6 | ||
| 2 | 4.9 | Intermediate-risk | 6.7 |
| 3 | 7.4 | ||
| 4 | 8.3 | ||
| 5 | 19.9 | High-risk | 22.7 |
| 6 | 27.3 | ||
| 7 | 26.7 |
LNM, lymph node metastasis; ESD, endoscopic submucosal dissection; EGCs, early gastric cancers; pT1b(SM2), tumor invasion into the submucosa ≥500 μm from the muscularis mucosa.
*
Three points are assigned for lymphatic invasion, 1 point each for tumor size >30 mm, positive vertical margins, pT1b(SM2), and vascular invasion, and 0 point each for undifferentiated-type and ulceration.