Table 2.
Outcomes and complications of endoscopic resection.
| EP (n = 5) | EMR (n = 45) | ESD (n = 6) | P value | |
|---|---|---|---|---|
| En bloc resection (%) | 5 (100) | 35 (77.8) | 4 (66.7) | 0.414 |
| Histologic complete resection (%) | 5 (100) | 37 (82.2) | 5 (83.3) | 1.000 |
| Procedure time (median (range), min) | 5.0 (5~16) | 13.0 (10~130) | 41.5 (32~180) | 0.003 |
| Complications (%) | 0 (0) | 3 (6.7) | 2 (33.3) | 0.140 |
| Bleeding (%) | 0 (0) | 1 (2.2) | 0 (0) | 1.000 |
| Perforation (%) | 0 (0) | 2 (4.5) | 2 (33.3) | 0.088 |
| Follow-up period (median (range), mon) | 33.5 (7~60) | 6.0 (3~66) | 18.0 (2~96) | 1.000 |
| Recurrence rate (%)* | 0/2 (0) | 1/29 (3.4) | 0/5 (0) | 0.632 |
| Number of cases and complications in each center† | ||||
| Incheon St. Mary's Hospital | 0 | 4 (0) | 2 (1) | |
| Bucheon St. Mary's Hospital | 2 (0) | 10 (2) | 1 (0) | |
| Yeouido St. Mary's Hospital | 0 | 15 (0) | 3 (1) | |
| Seoul St. Mary's Hospital | 3 (0) | 15 (1) | 0 | |
| St. Paul's Hospital | 0 | 1 (0) | 0 |
EP: endoscopic polypectomy; EMR: endoscopic mucosal resection; ESD: endoscopic submucosal dissection.
*Recurrence rate was obtained from patients who were followed up at least 2 months.
†Numbers indicate the total number of procedures and the numbers in parentheses indicate the number of complications.