TABLE 3.
Treatment outcomes of ESD
| Variable | Total (n = 11) a | En bloc resection (n = 10) | Piecemeal resection (n = 1) |
|---|---|---|---|
| R0 resection, n (%) | 9 (82) | 9 (90) | NA |
| Curative resection, n (%) | 9 (82) | 9 (90) | NA |
| Size of resected specimen (mm), median (range) | 40 (20–55) | 40 (20–55) | 30 |
| Tumor size (mm), median (range) | 30 (20–50) | 31 (20–50) | 15 |
| Excision time (min), median (range) | 95 (60–200) | 90 (60–200) | 100 |
| Endoscopic submucosal fibrosis, n (%) F0 | 0 | 0 | 0 |
| F1 | 7 (63) | 7 (70) | 0 |
| F2 | 4 (36) | 3 (30) | 1 |
| Complications, n (%) Delayed bleeding | 3 (27) | 3 (30) | 0 |
| Perforation | 0 | 0 | 0 |
| Histology, n (%) | |||
| Low‐grade dysplasia | 6 (55) | 5 (50) | 1 |
| Tubular adenoma, low grade | 1 (9) | 1 (10) | 0 |
| Tubular adenoma, high grade | 1 (9) | 1 (10) | 0 |
| Sessile serrated lesion | 1 (9) | 1 (10) | 0 |
| Traditional serrated adenoma | 1 (9) | 1 (10) | 0 |
| Low‐grade adenocarcinoma | 1 (9) | 1 (10) | 0 |
Abbreviation: NA, not assessed.
a
Two lesions were detected during surveillance colonoscopy.