Table 1.
Clinical characteristics of 15 endoscopic submucosal dissection and 31 endoscopic mucosal resection performed in 44 patients n (%)
| Total | ESD (n = 15) | EMR (n = 31) | P value | |
| Age, yr, mean ± SD (range) | 65 ± 9 (35-79) | 68 ± 5 (57-79) | 64 ± 10 (35-77) | 0.0775 |
| Male/female | 24/22 | 6/9 | 18/13 | 0.3480 |
| Location in duodenum | 0.0457 | |||
| Bulb | 15 (32.6) | 8 (53.3) | 7 (22.6) | |
| Second portion | 31 (67.4) | 7 (46.7) | 24 (77.4) | |
| Size, mm, mean ± SD (range) | 11.9 ± 9.7 (3-60) | 12.9 ± 14.3 (3-60) | 11.4 ± 6.7 (4-25) | 0.6474 |
| ≥ 20 mm | 8 (17.4) | 2 (13.3) | 6 (19.4) | |
| < 20 mm | 38 (82.6) | 13 (86.7) | 25 (80.6) | |
| Macroscopic type | 0.0009 | |||
| Protruded | 9 (19.6) | 0 | 9 (29.0) | |
| Elevated | 21 (45.6) | 4 (26.7) | 17 (54.8) | |
| Depressed | 7 (15.2) | 4 (26.7) | 3 (9.7) | |
| SMT | 9 (19.6) | 7 (46.6) | 2 (6.5) | |
| Histology | 0.0044 | |||
| Adenocarcinoma | 6 (13.0) | 2 (13.3) | 4 (12.9) | |
| Adenoma | 31 (67.4) | 6 (40.0) | 25 (80.6) | |
| NET | 9 (19.6) | 7 (46.7) | 2 (6.5) |
ESD: Endoscopic submucosal dissection; EMR: Endoscopic mucosal resection; SMT: Submucosal tumor; NET: Neuroendocrine tumor.