Table 1. Patterns of gastric cancer recurrence after curative resection.
| Study | Design | Year | Geographic region | Stage | No | Operation | Adjuvant treatment | Local* | Regional* | Peritoneal metastasis* | Hematogenous metastasis* |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Smalley et al. [32] | RCT | 2012 | U.S. | ≥T3 or N+ | 227 | D0–1 | Not used | 8.0% | 39.0% | 18.0% | |
| 282 | D0–1 | CCRT | 2.0% | 22.0% | 16.0% | ||||||
| Songun et al. [30] | RCT | 2010 | Dutch | I–III | 380 | D1 | Not used | 21.6% | 19.2% | 34.2% | |
| 330 | D2 | Not used | 12.1% | 13.0% | 29.7% | ||||||
| Conrad et al. [33] | Retrospective | 2016 | Canada | ≥T3 or N+ | 197 | N.D. | CCRT | 7.1% | 28.9% | ||
| Sakuramoto et al. [29] | RCT | 2007 | Japan | ≥T2 or N+ | 530 | R0/D2 | Not used | 2.8% | 8.7% | 15.8% | 11.3% |
| 529 | R0/D2 | Chemotherapy | 1.3% | 5.1% | 11.2% | 10.2% | |||||
| Bang et al. [31] | RCT | 2012 | Korea | ≥T2 or N+ | 515 | R0/D2 | Not used | 8.5% | 10.9% | 15.1% | |
| 520 | R0/D2 | Chemotherapy | 4.0% | 9.0% | 9.4% | ||||||
| Yu et al. [28] | RCT | 2015 | Korea | ≥T2 or N+ | 228 | R0/D2 | Chemotherapy | 4.8% | 12.7% | 16.2% | 8.3% |
| 230 | R0/D2 | CCRT | 4.8% | 6.5% | 16.1% | 7.0% | |||||
| Chang et al. [26] | Retrospective | 2012 | Korea | III | 382 | R0/D2 | Chemotherapy | 9.7% | 27.5% | 40.6% | 23.8% |
| Pachaury et al. [34] | Retrospective | 2022 | India | N3 | 196 | R0/D2 | Chemotherapy or CCRT | All LRR 21.9% | 30.6% | 20.9% | |
| LRR only 10.7% | |||||||||||
RCT = randomized controlled trial; CCRT = concurrent chemoradiotherapy; N.D. = not documented; LRR = locoregional recurrence.
*Cases of local and regional, peritoneal and regional, or peritoneal and hematogenous recurrence were reported together without distinction, were summed up, and presented in this table.