Table 4. Clinical results of salvage endoscopic resection (49 lesions in 37 patients).
| Method of endoscopic resection | |
| EMR-C | 44 |
| Strip biopsy | 2 |
| ESD | 3 |
| Resection type | |
| En bloc resection | 40 |
| Piecemeal resection | 9 |
| Adverse events | |
| Postoperative bleeding | 1 |
| Perforation | 1 |
| Pneumonia | 1 |
| Stricture | 4 |
| Histological evaluation | |
| R0 resection | 29 |
| R1 resection | 11 |
| Unknown (piecemeal, burned) | 9 |
| Curative resection rate | |
| Curative resection | 26 |
| Non-curative resection | 23 |
| Median tumor size (range), mm | 11 (3 – 35) |
| Depth of histological invasion | |
| EP-LPM | 37 |
| MM | 3 |
| SM1 | 2 |
| SM2 or more | 5 |
| Unknown (burned) | 2 |
EMR-C, endoscopic mucosal resection using a cap; ESD, endoscopic submucosal dissection; R0, tumor-free margins with en bloc resection; R1, tumor-positive margins with en bloc resection; EP, epithelium; LPM, lamina propria mucosae; MM, muscularis mucosae; SM, submucosal layer.