Table 2.
Clinicopathological findings associated with intraoperative perforation during endoscopic submucosal dissection n (%)
|
Perforated group |
Non-perforated group |
P value | |
| n = 9 | n = 147 | ||
| Age, mean ± SD | 67.9 ± 9.7 | 68.1 ± 7.5 | 0.929 |
| Sex | |||
| Male | 9 (100) | 131 (89.1) | |
| Female | 0 (0) | 16 (10.9) | 0.599 |
| History of treatment for esophageal carcinoma, n (%) | |||
| Yes | 0 (0) | 17 (11.6) | |
| No | 9 (100) | 130 (88.4) | 0.599 |
| Maximum dimension of lesion, mean ± SD, mm | 42.9 ± 19.3 | 30.8 ± 14.1 | 0.016 |
| Mucosal deficiency ≥ 75% circumference, n (%) | |||
| Yes | 7 (77.8) | 45 (30.6) | |
| No | 2 (22.2) | 102 (69.4) | 0.007 |
| Location | |||
| Upper | 0 (0) | 8 (5.4) | |
| Middle | 4 (44.4) | 79 (53.7) | |
| Lower | 5 (55.6) | 60 (40.8) | 0.697 |
| Depth of invasion | |||
| M | 6 (66.7) | 125 (85.0) | |
| SM | 3 (33.3) | 22 (15.0) | 0.158 |
| Predominant site | |||
| Right | 4 (44.4) | 98 (66.7) | |
| Left | 5 (55.6) | 49 (33.3) | 0.277 |
| Operator | |||
| Instructor | 6 (66.7) | 94 (63.9) | |
| Novice | 3 (33.3) | 53 (36.1) | 1.00 |
| Procedure time, mean ± SD, min | 183.8 ± 48.7 | 102.4 ± 46.7 | < 0.001 |
| En bloc resection | 3 (33.3) | 138 (93.9) | < 0.001 |