Table 3.
Endoscopic Submucosal Dissection Resection Outcomes
| Outcomes | All sites (n = 692) |
Esophagus (n = 181) |
Stomach (n = 101) |
Duodenum (n = 11) |
Colon (n = 211) |
Rectum (n = 188) |
|---|---|---|---|---|---|---|
| Resection outcomes | ||||||
| En bloc resection, n (%) | 633 (91.5) | 175 (96.7) | 99 (98) | 10 (91) | 181 (85.8) | 167 (88.8) |
| R0 resection, n (%) | 583 (84.2) | 156 (86.2) | 83 (82.2) | 8 (72.7) | 176 (83.4) | 161 (85.6) |
| R1 resection, n | 109 | 25 | 18 | 3 | 35 | 27 |
| Positive lateral resection margins, n (%) | 45 (41.3) | 5 (20) | 5 (27.8) | 1 (33.3) | 20 (57.1) | 14 (51.9) |
| Positive deep resection margins, n (%) | 24 (22) | 8 (32) | 9 (50) | 2 (66.7) | 0 | 5 (18.5) |
| Positive lateral and deep resection margins, n (%) | 15 (13.8) | 8 (32) | 3 (16.7) | 0 | 1 (2.9) | 3 (11.1) |
| Not specified, n (%) | 25 (22.9) | 4 (16) | 1 (5.5) | 0 | 14 (40) | 5 (18.5) |
| Curative resection, n (%) | 542 (78.3) | 129 (71.3) | 78 (77.2) | 8 (72.7) | 177 (83.9) | 150 (79.8) |
|
| ||||||
| Adverse events, n (%) | 70 (10.1) | 36 (19.9) | 4 (4) | 1 (9.1) | 18 (8.5) | 11 (5.9) |
| Severity | ||||||
| Mild | 35 (50) | — | — | — | — | — |
| Moderate | 28 (40) | — | — | — | — | — |
| Severe | 7 (10) | — | — | — | — | — |
| Type of adverse event | ||||||
| Delayed bleeding | 16 (2.3) | 3 (1.7) | 3 (3) | 1 (9.1) | 4 (1.9) | 5 (2.7) |
| Perforation | 20 (2.9) | 4 (2.2) | 1 (1) | 0 | 10 (4.7) | 5 (2.7) |
| Infection | 0 | 0 | 0 | 0 | 0 | 0 |
| Anesthesia related | 0 | 0 | 0 | 0 | 0 | 0 |
| Stricture formation | 26 (3.8) | 26 (14.4) | 0 | 0 | 0 | 0 |
| Pleural effusions | 3 (0.43) | 2 (1.1) | 0 | 0 | 0 | 1 (0.5) |
| Odynophagia | 1 (0.14) | 1 (0.6) | 0 | 0 | 0 | 0 |
| Post-polypectomy syndrome | 1 (0.14) | 0 | 0 | 0 | 1 (0.5) | 0 |
| Abdominal pain | 3 (0.43) | 0 | 0 | 0 | 3 (1.4) | 0 |