Table 1.
Baseline clinicopathological characteristics of the patients and tumors analyzed
| TA group | Non-TA group | P value | |
|---|---|---|---|
| 7 cases, 7 lesions | 6 cases, 7 lesions | ||
| Sex, n (%) | 0.462 | ||
| Male | 7 (100) | 5 (83.3) | |
| Female | 0 (0) | 1 (16.7) | |
| Age, years, median (range) | 65 (64–78) | 63 (54–72) | 0.059 |
| Tumor location, n (%) | 0.592 | ||
| Ce | 1 (14.3) | 0 (0) | |
| UtMt | 1 (14.3) | 0 (0) | |
| Mt | 2 (28.6) | 5 (71.4) | |
| MtLt | 1 (14.3) | 0 (0) | |
| LtMtAe | 1 (14.3) | 0 (0) | |
| Lt | 1 (14.3) | 1 (14.3) | |
| Ae | 0 (0) | 1 (14.3) | |
| Number of days from ESD to operation, Median (range) | 85 (63–131) | 98 (71–190) | 0.391 |
| Stricture after ESD, n (%) | 1 (14.3) | 0 (0) | 1 |
| ESD specimen | |||
| Macroscopic type of tumor, n (%) | 1 | ||
| Elevated | 4 (57.1) | 3 (42.9) | |
| Flat/depressed | 3 (42.9) | 4 (57.1) | |
| Histology, n (%) | 0.462 | ||
| SCC | 5 (71.4) | 7 (100) | |
| Others | 2 (28.6) | 0 (0) | |
| Depth of tumor invasion, n (%) | 1 | ||
| pT1a | 2 (28.6) | 2 (28.6) | |
| pT1b | 5 (71.4) | 5 (71.4) | |
| Lymphovascular invasion positive, n (%) | 5 (71.4) | 6 (85.7) | 1 |
| Dissection margin positive, n (%) | 5 (71.4) | 2 (28.6) | 0.286 |
| Size of specimen, mm, median (range) | 60 (35–75) | 34 (17–48) | 0.007 |
| Surgical specimen | |||
| Remnant of tumor, n (%) | 2 (28.6) | 1 (14.3) | 1 |
| Lymph node metastasis positive, n (%) | 2 (28.6) | 2 (33.3) | 1 |
| Size of scar, mm, median (range) | 55 (23–72) | 25 (10–40) | 0.015 |
Italic values indicate significance of p value (P < 0.05)
Ce cervical esophagus, Ut upper thoracic esophagus, Mt middle thoracic esophagus, Lt lower thoracic esophagus, Ae abdominal esophagus, SCC squamous cell carcinoma, ESD endoscopic submucosal dissection, TA triamcinolone acetonide